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eia.gov

eia.gov is SSL secured

Free website and domain report on eia.gov

Last Updated: 30th April, 2021 Update Now
Overview

Snoop Summary for eia.gov

This is a free and comprehensive report about eia.gov. Eia.gov is expected to earn an estimated $269 USD per day from advertising revenue. The sale of eia.gov would possibly be worth $196,405 USD. This figure is based on the daily revenue potential of the website over a 24 month period. Eia.gov is wildly popular with an estimated 63,618 daily unique visitors. This report was last updated 30th April, 2021.

About eia.gov

Site Preview: eia.gov eia.gov
Title: Homepage - U.S. Energy Information Administration (EIA)
Description: Provides energy statistics, data, and analysis.
Keywords and Tags: government, military, popular
Related Terms: eia, eia tia, eia tia 568b, tia eia 568b
Fav Icon:
Age:
Domain Created:
Domain Updated:
Domain Expires:
Review

Snoop Score

3/5 (Great!)

Valuation

$196,405 USD
Note: All valuation figures are estimates.

Popularity

High
Note: Popularity is estimated.

Rank, Reach and Authority

Alexa Rank: 18,380
Alexa Reach:
SEMrush Rank (US):
SEMrush Authority Score:
Moz Domain Authority: 0
Moz Page Authority: 0

Organic vs Paid (Google Ads)

Traffic

Visitors

Daily Visitors: 63,618
Monthly Visitors: 1,936,340
Yearly Visitors: 23,220,674
Note: All visitors figures are estimates.

Visitors By Country

Revenue

Revenue

Daily Revenue: $269 USD
Monthly Revenue: $8,189 USD
Yearly Revenue: $98,198 USD
Note: All revenue figures are estimates.

Revenue By Country

SEO

Backlinks Analysis (SEMrush)

Top New Follow Links

Top Ranking Keywords (US)

Domain Analysis

Value Length
Domain: eia.gov 7
Domain Name: eia 3
Extension (TLD): gov 3

Page Speed Analysis

Average Load Time: 1.00 seconds
Load Time Comparison: Faster than 80% of sites

PageSpeed Insights

Avg. (All Categories) 69
Performance 68
Accessibility 69
Best Practices 80
SEO 91
Progressive Web App 36
0–49 (Fail) 50–89 (Average) 90–100 (Pass)
URL: https://www.eia.gov/
Updated: 30th April, 2021

1.44 seconds
First Contentful Paint (FCP)
59%
34%
7%

0.00 seconds
First Input Delay (FID)
99%
1%
0%

Simulate loading on desktop
68

Performance

Indicates how well the page is performing and highlights opportunities where performance may be improved for eia.gov. This includes details about optimizing page load times which can result in a better user experience.

Metrics

Time to Interactive — 1.7 s
The time taken for the page to become fully interactive.
Total Blocking Time — 20 ms
The total blocking time is the sum of all time periods between First Contentful Paint and Time to Interactive (when task length exceeded 50ms).
Cumulative Layout Shift — 0.012
Cumulative Layout Shift is the measurement of visible elements collective movement within the viewport.
View Data

Other

First CPU Idle — 1.4 s
The time taken for the page's main thread to be quiet enough to handle input.
Max Potential First Input Delay — 70 ms
Users could experience a delay when interacting with the page.
Estimated Input Latency — 10 ms
The time taken for the page to respond to user input (during the busiest 5 second window of page load). Users are likely to perceive eia.gov as laggy when the latency is higher than 0.05 seconds.
Network Requests
Below is a list of network requests that were made during page load.
URL Protocol Start Time (Ms) End Time (Ms) Transfer Size (Bytes) Resource Size (Bytes) Status Code MIME Type Resource Type
http://eia.gov/
http/1.1
0
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301
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text/css
Stylesheet
https://www.eia.gov/global/scripts/vendor/jquery/jquery.min.js
http/1.1
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Script
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http/1.1
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Script
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Script
https://www.eia.gov/global/scripts/vendor/jquery-ui/jquery.ui.touch-punch.min.js
http/1.1
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1032
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Script
https://www.eia.gov/global/scripts/jquery/highcharts/3.0.10/js/highcharts.js
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Script
https://www.eia.gov/global/scripts/jquery/highcharts/3.0.10/js/highcharts-more.js
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Script
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http/1.1
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Script
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http/1.1
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Script
https://www.eia.gov/global/scripts/jquery/ga/ga-file-downloads.js
http/1.1
429.95100002736
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1518
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text/javascript
Script
https://www.eia.gov/global/survey/engine/js/survey_engine.js
http/1.1
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4338
14888
200
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Script
https://www.eia.gov/global/survey/engine/css/layout.css
http/1.1
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1035.0130000152
2360
6347
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text/css
Stylesheet
https://s7.addthis.com/js/300/addthis_widget.js
h2
1566.5140000638
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116721
361292
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application/javascript
Script
https://www.eia.gov/global/images/logos/eia_logo_print.png
http/1.1
1621.841999935
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image/png
Image
https://www.eia.gov/homepage/images/slider/STEO.jpg
http/1.1
2115.5119999312
2328.7760000676
375372
374984
200
image/jpeg
Image
https://www.eia.gov/homepage/images/slider/summerfuels.jpg
http/1.1
2330.6990000419
2532.8850001097
295925
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200
image/jpeg
Image
https://www.eia.gov/homepage/images/slider/gasolineanddieselprices.jpg
http/1.1
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194048
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image/jpeg
Image
https://www.eia.gov/homepage/images/slider/crude_by_rail.jpg
http/1.1
2687.3979999218
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127784
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200
image/jpeg
Image
https://www.eia.gov/homepage/images/slider/HB_coalmarkets.jpg
http/1.1
2770.8420001436
2947.119000135
344170
343782
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image/jpeg
Image
https://www.eia.gov/homepage/images/slider/MER.jpg
http/1.1
2950.0460000709
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46616
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200
image/jpeg
Image
https://www.eia.gov/todayinenergy/images/2021.04.30/main.svg
http/1.1
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290466
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image/svg+xml
Image
https://www.eia.gov/homepage/images/features/930_featureimage.jpg
http/1.1
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200
image/jpeg
Image
https://www.eia.gov/homepage/images/features/AEO2021_featureimage.png
http/1.1
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200
image/png
Image
https://www.eia.gov/homepage/images/features/EIAatlas_featureimage.jpg
http/1.1
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200
image/jpeg
Image
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http/1.1
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200
image/png
Image
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http/1.1
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200
text/javascript
Script
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http/1.1
3679.7619999852
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24946
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200
text/css
Stylesheet
https://ssl.google-analytics.com/ga.js
h2
3679.565000115
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200
text/javascript
Script
https://www.eia.gov/global/images/energy-kids/energy-ant.png
http/1.1
3683.4160001017
4081.548999995
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image/png
Image
data
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data
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data
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data
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Image
https://z.moatads.com/addthismoatframe568911941483/moatframe.js
h2
3779.1170000564
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application/x-javascript
Script
https://www.eia.gov/global/scripts/search.usa.gov/remote.loader.js
http/1.1
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1312
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Script
https://www.eia.gov/global/images/bg/h_line_shadow_feature_banner.png
http/1.1
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Image
data
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Image
data
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Image
https://www.eia.gov/global/images/bg/features_bg.jpg
http/1.1
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Image
data
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data
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data
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data
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data
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data
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Image
data
3814.607999986
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image/svg+xml
Image
https://www.eia.gov/global/includes/bookshelf/index.php
http/1.1
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application/json
XHR
https://www.eia.gov/global/survey/engine/data/index.php?a=g&p=%2F
http/1.1
3947.1970000304
4091.3540001493
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application/json
XHR
https://v1.addthisedge.com/live/boost/ra-514b0d4a047a687f/_ate.track.config_resp
h2
3975.7700001355
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785
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application/javascript
Script
https://m.addthis.com/live/red_lojson/300lo.json?si=608c2babc15386ae&bkl=0&bl=1&pdt=430&sid=608c2babc15386ae&pub=ra-514b0d4a047a687f&rev=v8.28.8-wp&ln=en&pc=men&cb=0&ab=-&dp=www.eia.gov&fp=&fr=&of=1&pd=0&irt=0&vcl=0&md=0&ct=1&tct=0&abt=0&cdn=0&pi=1&rb=0&gen=100&chr=UTF-8&colc=1619798955691&jsl=33&skipb=1&callback=addthis.cbs.jsonp__21271036435310210
h2
3987.7059999853
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application/javascript
Script
https://s7.addthis.com/static/sh.f48a1a04fe8dbf021b4cda1d.html
3990.1610000525
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h2
3996.9679999631
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text/html
Document
https://ssl.google-analytics.com/r/__utm.gif?utmwv=5.7.2&utms=1&utmn=1071762016&utmhn=www.eia.gov&utmcs=UTF-8&utmsr=800x600&utmvp=1350x940&utmsc=24-bit&utmul=en-us&utmje=0&utmfl=-&utmdt=Homepage%20-%20U.S.%20Energy%20Information%20Administration%20(EIA)&utmhid=616781946&utmr=-&utmp=%2F&utmht=1619798955747&utmac=UA-25837230-1&utmcc=__utma%3D165580587.270183899.1619798956.1619798956.1619798956.1%3B%2B__utmz%3D165580587.1619798956.1.1.utmcsr%3D(direct)%7Cutmccn%3D(direct)%7Cutmcmd%3D(none)%3B&utmjid=729502010&utmredir=1&utmu=qBAAAAAAAAAAAAAAAAAAAAAE~
http/1.1
4047.0519999508
4084.9580001086
757
0
302
text/html
https://stats.g.doubleclick.net/r/collect?v=1&aip=1&t=dc&_r=3&tid=UA-25837230-1&cid=270183899.1619798956&jid=729502010&_v=5.7.2&z=1071762016
http/1.1
4085.299000144
4123.2000000309
826
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302
text/html
https://search.usa.gov/assets/sayt.css
http/1.1
4122.1469999291
4255.1250001416
3245
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200
text/css
Stylesheet
https://search.usa.gov/assets/sayt_loader_libs.js
http/1.1
4122.8219999466
4277.747000102
42380
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200
application/javascript
Script
https://www.google.com/ads/ga-audiences?v=1&aip=1&t=sr&_r=4&tid=UA-25837230-1&cid=270183899.1619798956&jid=729502010&_v=5.7.2&z=1071762016
h2
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h2
4126.1720000766
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78023
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application/javascript
Script
https://platform.twitter.com/widgets.js
http/1.1
4131.9160000421
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29339
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application/javascript
Script
https://connect.facebook.net/en_US/sdk.js
h2
4133.8800000958
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2871
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application/x-javascript
Script
https://connect.facebook.net/en_US/sdk.js?hash=3cf0af522fc202707998ff1ffe40f989&ua=modern_es6
h2
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application/x-javascript
Script
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http/1.1
4218.2970000431
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Document
https://www.facebook.com/common/scribe_endpoint.php?c=jssdk_error&m=%7B%22error%22%3A%22LOAD%22%2C%20%22extra%22%3A%20%7B%22name%22%3A%22Error%22%2C%22line%22%3A%22undefined%22%2C%22script%22%3A%22undefined%22%2C%22stack%22%3A%22Error%3A%20Module%20FB%20has%20not%20been%20defined%0A%20%20%20%20at%20j%20(https%3A%2F%2Fconnect.facebook.net%2Fen_US%2Fsdk.js%3Fhash%3D3cf0af522fc202707998ff1ffe40f989%26ua%3Dmodern_es6%3A24%3A295)%0A%20%20%20%20at%20k%20(https%3A%2F%2Fconnect.facebook.net%2Fen_US%2Fsdk.js%3Fhash%3D3cf0af522fc202707998ff1ffe40f989%26ua%3Dmodern_es6%3A24%3A977)%0A%20%20%20%20at%20Object.%3Canonymous%3E%20(https%3A%2F%2Fconnect.facebook.net%2Fen_US%2Fsdk.js%3Fhash%3D3cf0af522fc202707998ff1ffe40f989%26ua%3Dmodern_es6%3A47%3A61)%0A%20%20%20%20at%20j%20(https%3A%2F%2Fconnect.facebook.net%2Fen_US%2Fsdk.js%3Fhash%3D3cf0af522fc202707998ff1ffe40f989%26ua%3Dmodern_es6%3A24%3A793)%0A%20%20%20%20at%20k%20(https%3A%2F%2Fconnect.facebook.net%2Fen_US%2Fsdk.js%3Fhash%3D3cf0af522fc202707998ff1ffe40f989%26ua%3Dmodern_es6%3A24%3A977)%0A%20%20%20%20at%20Object.n%20%5Bas%20__d%5D%20(https%3A%2F%2Fconnect.facebook.net%2Fen_US%2Fsdk.js%3Fhash%3D3cf0af522fc202707998ff1ffe40f989%26ua%3Dmodern_es6%3A24%3A1294)%0A%20%20%20%20at%20Object.%3Canonymous%3E%20(https%3A%2F%2Fconnect.facebook.net%2Fen_US%2Fsdk.js%3Fhash%3D3cf0af522fc202707998ff1ffe40f989%26ua%3Dmodern_es6%3A47%3A1)%0A%20%20%20%20at%20https%3A%2F%2Fconnect.facebook.net%2Fen_US%2Fsdk.js%3Fhash%3D3cf0af522fc202707998ff1ffe40f989%26ua%3Dmodern_es6%3A186%3A452%0A%20%20%20%20at%20https%3A%2F%2Fconnect.facebook.net%2Fen_US%2Fsdk.js%3Fhash%3D3cf0af522fc202707998ff1ffe40f989%26ua%3Dmodern_es6%3A186%3A467%22%2C%22revision%22%3A%221003714696%22%2C%22namespace%22%3A%22FB%22%2C%22message%22%3A%22Module%20FB%20has%20not%20been%20defined%22%7D%7D
h2
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Image
https://syndication.twitter.com/settings?session_id=a2078753a5270f1c778d655ef2ea806cf70d46bf
h2
4402.7530001476
4512.0900000911
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application/json
Fetch
https://platform.twitter.com/js/button.5573c974dc31bbdab5ea7923a0bd5cf3.js
http/1.1
4522.5520001259
4575.6660001352
2830
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200
application/javascript
Script
https://platform.twitter.com/widgets/tweet_button.06c6ee58c3810956b7509218508c7b56.en.html
http/1.1
4600.8790000342
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12752
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200
text/html
Document
data
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Image
https://syndication.twitter.com/i/jot?dnt=1&l=%7B%22widget_origin%22%3A%22https%3A%2F%2Fwww.eia.gov%2F%22%2C%22widget_frame%22%3Afalse%2C%22language%22%3A%22en%22%2C%22message%22%3A%22m%3Anocount%3A%22%2C%22_category_%22%3A%22tfw_client_event%22%2C%22triggered_on%22%3A1619798956517%2C%22dnt%22%3Atrue%2C%22client_version%22%3A%2282e1070%3A1619632193066%22%2C%22format_version%22%3A1%2C%22event_namespace%22%3A%7B%22client%22%3A%22tfw%22%2C%22page%22%3A%22button%22%2C%22section%22%3A%22share%22%2C%22action%22%3A%22impression%22%7D%7D
h2
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Network Round Trip Times — 0 ms
High Network RTT (Round Trip Times) can have a large impact on performance. Providing servers geographically closer to the user could improve performance.
Server Backend Latencies — 0 ms
High server latencies indicate the server is overloaded or has a poor backend performance.
Tasks
Below is a list of the top-level main thread tasks that executed during page load.
Start Time (Ms) End Time (Ms)
443.603
9.127
458.03
5.644
1181.312
14.804
1196.219
58.844
3708.314
6.658
3714.99
36.013
3751.343
62.644
3814.078
6.169
3821.938
56.794
3880.466
147.49
4041.589
36.923
4086.173
8.252
4095.825
20.937
4117.509
5.186
4122.953
26.303
4155.464
11.354
4178.987
23.34
4228.583
20.511
4261.149
39.741
4307.409
11.843
4330.824
19.361
4352.186
7.777
4360.643
17.872
4394.85
40.287
4547.787
7.472
4613.176
19.812
4701.562
10.71
4715.663
17.737
4840.983
6.831
7651.43
13.069
Diagnostics
Below is a collection of useful page vitals.
View Data
Metrics
Below is a collection of metrics.
View Data

Opportunities

Defer offscreen images
Time to Interactive can be slowed down by resources on the page. Eia.gov should consider lazy-loading offscreen and hidden images.
Minify CSS
Cascading Style Sheets (CSS) files can contribute to network payload sizes. Eia.gov should consider minifying CSS files.
Minify JavaScript
JavaScript (JS) files can contribute to network payload sizes and increase script parse times. Eia.gov should consider minifying JS files.
Enable text compression
Text-based resources should be served with compression, such as gzip, deflate or brotli.
Preconnect to required origins
Resource hints, such as 'preconnect' or 'dns-prefetch', may assist in establishing early connections to important third-party origins.
Initial server response time was short — Root document took 330 ms
It is advised to keep the server response time short for the main document, because all other requests depend on it.
URL Time Spent (Ms)
https://www.eia.gov/
328.01
Avoid multiple page redirects — Potential savings of 190 ms
Redirects can cause additional delays before the page can begin loading. Eia.gov should avoid multiple or unnecessary page redirects.
URL Time Spent (Ms)
http://eia.gov/
190
https://www.eia.gov/
0
Preload key requests
Key requests can be preloaded by using '<link rel=preload>'. Eia.gov should consider using '<link rel=preload>' to prioritize fetching resources that are currently requested later in page load.
Use video formats for animated content
Large GIFs are inefficient for delivering animated content. It is recommended to use MPEG4/WebM videos for animations and PNG/WebP for static images instead of GIF.
Remove duplicate modules in JavaScript bundles
Ensure that no duplicate JavaScript modules from bundles exist to reduce bytes consumed by network activity.
Avoid serving legacy JavaScript to modern browsers — Potential savings of 0 KiB
Polyfills and transforms enable legacy browsers to use new JavaScript features. For bundled JavaScript it is recommended to adopt a modern script deployment strategy using module/nomodule feature detection. This will reduce the amount of code shipped to modern browsers.
URL Potential Savings (Bytes)
https://s7.addthis.com/static/layers.fa6cd1947ce26e890d3d.js
58
https://s7.addthis.com/js/300/addthis_widget.js
54
https://www.eia.gov/global/scripts/global.min.js?v=3.7
52
Preload Largest Contentful Paint image
It is recommended to preload images used by LCP elements, to improve LCP time.
URL Potential Savings (Ms)
https://www.eia.gov/homepage/images/slider/STEO.jpg
0

Diagnostics

Avoid chaining critical requests — 13 chains found
Below is a list of Critical Request Chains, which shows which resources are loaded with a high priority. Eia.gov should consider reducing the length of chains, reducing the download size of resources, or deferring the download of unnecessary resources to improve page load.
User Timing marks and measures — 1 user timing
Make use of the User Timing API to measure an app's real-world performance during key user experiences.
Name Type Start Time (Ms) Duration (Ms)
addthis.render_toolbox
Mark
4129.844
JavaScript execution time — 0.3 s
JavaScript (JS) execution time can be lowered by reducing the time required for parsing, compiling and executing JS. Delivering smaller JS payloads may help with this.
URL Total CPU Time (Ms) Script Evaluation (Ms) Script Parse (Ms)
https://www.eia.gov/
188.43
4.37
1.515
Unattributable
113.568
8.311
0.149
https://s7.addthis.com/js/300/addthis_widget.js
107.742
95.712
6.899
https://www.eia.gov/global/scripts/global.min.js?v=3.7
88.956
75.909
3.539
https://platform.twitter.com/widgets.js
75.417
60.987
4.26
https://www.eia.gov/global/scripts/vendor/jquery/jquery.min.js
50.056
37.395
2.034
Minimizes main-thread work — 1.0 s
Main-thread work timing can be lowered by reducing the time required for parsing, compiling and executing JS. Delivering smaller JS payloads may help with this.
Category Time Spent (Ms)
Script Evaluation
475.117
Other
156.532
Style & Layout
133.162
Script Parsing & Compilation
80.303
Parse HTML & CSS
60.888
Rendering
45.964
Garbage Collection
2.612
All text remains visible during webfont loads
Make use of the font-display CSS feature, which will ensure text is user-visible while webfonts are loading.
Keep request counts low and transfer sizes small — 56 requests • 2,901 KiB
It is advised to add a budgets.json file in order to set budgets for the quantity and size of page resources.
Resource Type Requests Transfer Size (Bytes)
Total
56
2970699
Image
18
2041315
Script
23
610943
Document
5
162222
Stylesheet
4
149140
Other
6
7079
Media
0
0
Font
0
0
Third-party
22
511817
Minimize third-party usage — Third-party code blocked the main thread for 0 ms
It is advised to either limit, remove or delay the loading of redundant third-party code which may be significantly impacting load performance.
Third-Party Transfer Size (Bytes) Main-Thread Blocking Time (Ms)
SHOW DETAILS
222734
0
SHOW DETAILS
152070
0
SHOW DETAILS
69938
0
SHOW DETAILS
18555
0
SHOW DETAILS
1391
0
SHOW DETAILS
826
0
SHOW DETAILS
678
0
Lazy load third-party resources with facades
Consider replacing third-party embeds with a facade until they are required (use lazy loading).
Largest Contentful Paint element — 1 element found
The element which was identified as the Largest Contentful Paint.
Element
Short-Term Energy Outlook April 2021
Avoid large layout shifts — 4 elements found
Below is a list of all DOM elements that contribute to the CLS of the page.
Element CLS Contribution
Features Hourly Electric Grid Monitor Hourly actual and forecast electricity ge…
0.0092142632358521
Source: U.S. Energy Information Administration
0.0026667527653737
Annual Energy Outlook 2021 Exploring the long-term impact of COVID-19 on the U.…
6.7647973032134E-5
U.S. Energy Atlas A new interface for web map applications featuring a comprehe…
6.7647973032134E-5
Uses passive listeners to improve scrolling performance
Improve the page's scroll performance by marking touch and wheel event listeners as 'passive'.
Avoids `document.write()`
Avoid or limit the use of external scripts that are dynamically injected via 'document.write()' as users on slow connections will be delayed by tens of seconds.
Avoid long main-thread tasks — 3 long tasks found
Below is a list of the longest tasks on the main thread, which is useful when identifying the worst input delay contributors.
URL Start Time (Ms) Duration (Ms)
https://www.eia.gov/global/scripts/global.min.js?v=3.7
1970
74
https://s7.addthis.com/js/300/addthis_widget.js
936
63
https://www.eia.gov/global/scripts/vendor/jquery/jquery.min.js
1750
59
Avoid non-composited animations
It is recommended to avoid non-composited animations which are often janky and increase CLS.

Budgets

Performance budget
It is advised to keep the quantity and size of all network requests under the targets set by the provided performance budget.
Timing budget
It is advised to set a timing budget to monitor the performance of your site.

Metrics

First Contentful Paint — 1.2 s
The time taken for the first image or text on the page to be rendered.

Other

First Meaningful Paint — 1.4 s
The time taken for the primary content of the page to be rendered.

Opportunities

Properly size images — Potential savings of 271 KiB
Images can slow down the page's load time. Eia.gov should consider serving more appropriate-sized images.
URL Resource Size (Bytes) Potential Savings (Bytes)
https://www.eia.gov/homepage/images/features/AEO2021_featureimage.png
128242
91680
https://www.eia.gov/homepage/images/energy-kids/kids-laptop-spring.png
99266
78758
https://www.eia.gov/homepage/images/features/EIAatlas_featureimage.jpg
87953
62925
https://www.eia.gov/homepage/images/features/930_featureimage.jpg
61982
44344
Remove unused CSS — Potential savings of 122 KiB
Dead and/or unused rules in Style Sheets (CSS) can contribute to network payload sizes. Eia.gov should consider removing dead rules from style sheets and deferring the loading of CSS not used for above-the-fold content.
URL Transfer Size (Bytes) Potential Savings (Bytes)
https://www.eia.gov/global/styles/global.min.css?v=1.13
118589
99789
https://www.eia.gov/global/styles/global.print.min.css?v=1.11
24946
24946
Remove unused JavaScript — Potential savings of 467 KiB
It is advised to remove unused JavaScript in order to reduce bytes consumed by network activity.
URL Transfer Size (Bytes) Potential Savings (Bytes)
https://platform.twitter.com/widgets/widget_iframe.06c6ee58c3810956b7509218508c7b56.html?origin=https%3A%2F%2Fwww.eia.gov
105777
102149
https://www.eia.gov/global/scripts/vendor/jquery-ui/jquery.ui.min.js
76962
65949
https://s7.addthis.com/js/300/addthis_widget.js
116721
57684
https://connect.facebook.net/en_US/sdk.js?hash=3cf0af522fc202707998ff1ffe40f989&ua=modern_es6
65718
55329
https://www.eia.gov/global/scripts/jquery/highcharts/3.0.10/js/highcharts.js
60381
53953
https://www.eia.gov/global/scripts/global.min.js?v=3.7
52983
43369
https://s7.addthis.com/static/layers.fa6cd1947ce26e890d3d.js
78023
40968
https://s7.addthis.com/static/sh.f48a1a04fe8dbf021b4cda1d.html
72197
33171
https://search.usa.gov/assets/sayt_loader_libs.js
42380
25513
Efficiently encode images — Potential savings of 898 KiB
Unoptimized images can consume more cellular data than what is necessary.
URL Resource Size (Bytes) Potential Savings (Bytes)
https://www.eia.gov/homepage/images/slider/STEO.jpg
374984
251185
https://www.eia.gov/homepage/images/slider/HB_coalmarkets.jpg
343782
233198
https://www.eia.gov/homepage/images/slider/summerfuels.jpg
295536
211030
https://www.eia.gov/homepage/images/slider/gasolineanddieselprices.jpg
193661
126632
https://www.eia.gov/homepage/images/features/EIAatlas_featureimage.jpg
87953
51426
https://www.eia.gov/homepage/images/features/930_featureimage.jpg
61982
41392
https://www.eia.gov/homepage/images/slider/MER.jpg
46230
4485

Diagnostics

Avoid enormous network payloads — Total size was 2,901 KiB
Large network payloads can cost users money and are linked to long load times.
URL Transfer Size (Bytes)
https://www.eia.gov/homepage/images/slider/STEO.jpg
375372
https://www.eia.gov/homepage/images/slider/HB_coalmarkets.jpg
344170
https://www.eia.gov/homepage/images/slider/summerfuels.jpg
295925
https://www.eia.gov/todayinenergy/images/2021.04.30/main.svg
198320
https://www.eia.gov/homepage/images/slider/gasolineanddieselprices.jpg
194048
https://www.eia.gov/homepage/images/features/AEO2021_featureimage.png
128562
https://www.eia.gov/homepage/images/slider/crude_by_rail.jpg
127784
https://www.eia.gov/global/styles/global.min.css?v=1.13
118589
https://s7.addthis.com/js/300/addthis_widget.js
116721
https://platform.twitter.com/widgets/widget_iframe.06c6ee58c3810956b7509218508c7b56.html?origin=https%3A%2F%2Fwww.eia.gov
105823
Avoid an excessive DOM size — 939 elements
A large DOM (Document Object Model) will increase memory usage, cause longer system calculations as well as costly layout reflows.
Statistic Element Value
Total DOM Elements
939
Maximum DOM Depth
ul
13
Maximum Child Elements
A | B | C | D | E | F | G | …
24

Metrics

Speed Index — 3.4 s
The time taken for the page contents to be visibly populated.
Largest Contentful Paint — 2.8 s
The timing of the largest text or image that is painted.

Opportunities

Eliminate render-blocking resources — Potential savings of 940 ms
Resources, such as JavaScript and style sheets, can block the first paint of the page. Eia.gov should consider delivering critical JavaScript/style sheets (JS/CSS) inline and deferring all non-critical JS/CSS.
URL Transfer Size (Bytes) Potential Savings (Ms)
https://www.eia.gov/global/styles/global.min.css?v=1.13
118589
510
https://www.eia.gov/global/survey/engine/css/layout.css
2360
150
https://www.eia.gov/global/scripts/vendor/jquery/jquery.min.js
36549
350
https://www.eia.gov/global/scripts/vendor/jquery-migrate/jquery.migrate.min.js
3594
150
https://www.eia.gov/global/scripts/vendor/jquery-ui/jquery.ui.min.js
76962
470
https://www.eia.gov/global/scripts/vendor/jquery-ui/jquery.ui.touch-punch.min.js
1032
150
https://www.eia.gov/global/scripts/jquery/highcharts/3.0.10/js/highcharts.js
60381
310
https://www.eia.gov/global/scripts/jquery/highcharts/3.0.10/js/highcharts-more.js
9203
110
https://www.eia.gov/global/scripts/jquery/highcharts/3.0.10/js/modules/exporting.js
3704
70
https://www.eia.gov/global/scripts/jquery/highcharts/3.0.10/js/modules/no-data-to-display.js
1159
70
https://www.eia.gov/global/scripts/jquery/ga/ga-file-downloads.js
1518
70
https://www.eia.gov/global/survey/engine/js/survey_engine.js
4338
70
Serve images in next-gen formats — Potential savings of 1,304 KiB
Image formats like PNG and JPEG have poor compression when compared to other next-gen formats, such as JPEG 200, JPEG XR and WebP.
URL Resource Size (Bytes) Potential Savings (Bytes)
https://www.eia.gov/homepage/images/slider/STEO.jpg
374984
284056
https://www.eia.gov/homepage/images/slider/HB_coalmarkets.jpg
343782
267760
https://www.eia.gov/homepage/images/slider/summerfuels.jpg
295536
246982
https://www.eia.gov/homepage/images/slider/gasolineanddieselprices.jpg
193661
158261
https://www.eia.gov/homepage/images/features/AEO2021_featureimage.png
128242
110730
https://www.eia.gov/homepage/images/energy-kids/kids-laptop-spring.png
99266
72510
https://www.eia.gov/homepage/images/features/EIAatlas_featureimage.jpg
87953
60463
https://www.eia.gov/homepage/images/features/930_featureimage.jpg
61982
50296
https://www.eia.gov/global/images/energy-kids/energy-ant.png
46862
28736
https://www.eia.gov/homepage/images/slider/MER.jpg
46230
24500
https://www.eia.gov/homepage/images/slider/crude_by_rail.jpg
127396
22044
https://www.eia.gov/global/images/bg/features_bg.jpg
11023
8801

Diagnostics

Serve static assets with an efficient cache policy — 23 resources found
Eia.gov can speed up repeat visits by increasing the cache lifetime, which is essentially how long before a cached copy expires.
URL Cache TTL (Ms) Transfer Size (Bytes)
https://www.eia.gov/todayinenergy/images/2021.04.30/main.svg
0
198320
https://www.eia.gov/homepage/images/features/AEO2021_featureimage.png
0
128562
https://www.eia.gov/homepage/images/energy-kids/kids-laptop-spring.png
0
99585
https://www.eia.gov/homepage/images/features/EIAatlas_featureimage.jpg
0
88272
https://www.eia.gov/homepage/images/features/930_featureimage.jpg
0
62301
https://www.eia.gov/global/images/energy-kids/energy-ant.png
0
47181
https://www.eia.gov/global/images/bg/features_bg.jpg
0
11341
https://www.eia.gov/global/images/logos/eia_logo_print.png
0
9570
https://www.eia.gov/global/images/bg/h_line_shadow_feature_banner.png
0
9549
https://v1.addthisedge.com/live/boost/ra-514b0d4a047a687f/_ate.track.config_resp
53000
785
https://www.eia.gov/homepage/images/slider/crude_by_rail.jpg
69000
127784
https://www.eia.gov/homepage/images/slider/HB_coalmarkets.jpg
85000
344170
https://www.eia.gov/homepage/images/slider/MER.jpg
85000
46616
https://www.eia.gov/homepage/images/slider/gasolineanddieselprices.jpg
170000
194048
https://www.eia.gov/homepage/images/slider/summerfuels.jpg
213000
295925
https://www.eia.gov/homepage/images/slider/STEO.jpg
237000
375372
https://s7.addthis.com/js/300/addthis_widget.js
600000
116721
https://connect.facebook.net/en_US/sdk.js
1200000
2871
https://platform.twitter.com/widgets.js
1800000
29339
https://search.usa.gov/assets/sayt_loader_libs.js
3600000
42380
https://search.usa.gov/assets/sayt.css
3600000
3245
https://ssl.google-analytics.com/ga.js
7200000
17798
https://z.moatads.com/addthismoatframe568911941483/moatframe.js
38311000
1391
Image elements do not have explicit `width` and `height`
Reduce layout shifts and improve CLS by setting explicit width and height properties on image elements.
URL Failing Elements
https://www.eia.gov/homepage/images/slider/STEO.jpg
Short-Term Energy Outlook April 2021
https://www.eia.gov/homepage/images/slider/STEO.jpg
Short-Term Energy Outlook April 2021
https://www.eia.gov/homepage/images/slider/HB_coalmarkets.jpg
Weekly Coal Markets
https://www.eia.gov/homepage/images/slider/summerfuels.jpg
Summer Fuels Outlook
https://www.eia.gov/todayinenergy/images/2021.04.30/main.svg
New York state nuclear power plants
https://www.eia.gov/homepage/images/slider/gasolineanddieselprices.jpg
Gasoline and Diesel Fuel Update
https://www.eia.gov/homepage/images/features/AEO2021_featureimage.png
Annual Energy Outlook 2021
https://www.eia.gov/homepage/images/slider/crude_by_rail.jpg
U.S. Movements of Crude Oil By Rail
https://www.eia.gov/homepage/images/energy-kids/kids-laptop-spring.png
Small image of Energy Kids banner with host Energy Ant
https://www.eia.gov/homepage/images/features/EIAatlas_featureimage.jpg
U.S. Energy Atlas
https://www.eia.gov/homepage/images/features/930_featureimage.jpg
Hourly Electric Grid Monitor
https://www.eia.gov/homepage/images/slider/MER.jpg
Monthly Energy Review
https://www.eia.gov/homepage/images/slider/MER.jpg
Monthly Energy Review
69

Accessibility

Indicates how accessible the page is and highlights opportunities where the page can be made more accessible to users of eia.gov. This includes details about various page attributes that can be optimized.

Navigation

`[accesskey]` values are unique
Access keys assist users with focusing on different parts of the page. Each access key should be unique for proper navigation.
The page contains a heading, skip link, or landmark region
It is advised to provide ways to bypass repetitive content, allowing users to navigate the page efficiently.
Heading elements appear in a sequentially-descending order
Properly order all headers and do not skip heading levels to better the navigation and readability for users of assistive technologies, like a screen reader.
No element has a `[tabindex]` value greater than 0
Although technically valid, a tabindex value greater than 0 often creates frustrating experiences for users who rely on assistive technologies.

ARIA

`[aria-*]` attributes match their roles
Avoid mismatching 'aria-*' attributes and their 'role' value, as it invalidates the attribute.
`button`, `link`, and `menuitem` elements have accessible names
Without accessible names on elements, screen readers will default to announcing a generic name, which means your content will be less accessible to users who rely on screen readers.
`[aria-hidden="true"]` is not present on the document `<body>`
If aria-hidden=true is set on the document body, assistive technologies, like a screen reader will work inconsistently.
ARIA input fields have accessible names
Generic names are announced to users of assistive technologies, like a screen reader, when an input field does not have an accessible name specified.
ARIA `meter` elements have accessible names
Without accessible names on elements, screen readers will default to announcing a generic name, which means your content will be less accessible to users who rely on screen readers.
ARIA `progressbar` elements have accessible names
Without accessible names on elements, screen readers will default to announcing a generic name, which means your content will be less accessible to users who rely on screen readers.
`[role]`s have all required `[aria-*]` attributes
Some ARIA roles have required 'aria-*' attributes, which provide essential information about state and functionality.
Elements with an ARIA `[role]` that require children to contain a specific `[role]` have all required children.
Some ARIA parent roles cannot perform their intended functions if specific child roles are not used.
`[role]`s are contained by their required parent element
Some ARIA child roles cannot perform their intended functions if specific parent roles are not used.
`[role]` values are valid
All ARIA roles require valid values to perform their intended functions.
ARIA toggle fields have accessible names
Generic names are announced to users of assistive technologies, like a screen reader, when a toggle field does not have an accessible name specified.
ARIA `tooltip` elements have accessible names
Without accessible names on elements, screen readers will default to announcing a generic name, which means your content will be less accessible to users who rely on screen readers.
ARIA `treeitem` elements have accessible names
Without accessible names on elements, screen readers will default to announcing a generic name, which means your content will be less accessible to users who rely on screen readers.
`[aria-*]` attributes have valid values
ARIA attributes cannot be interpreted with invalid values when used by screen readers and other assistive technologies.
`[aria-*]` attributes are valid and not misspelled
ARIA attributes cannot be interpreted with invalid names when used by screen readers and other assistive technologies.

Tables and lists

`<dl>`'s contain only properly-ordered `<dt>` and `<dd>` groups, `<script>`, `<template>` or `<div>` elements.
Screen readers and other assistive technologies may produce poor and inaccurate output when definition lists are not properly marked up.
Definition list items are wrapped in `<dl>` elements
In order for screen readers and other assistive technologies to properly announce definition list items ('<dt>' and '<dd>'), they must be wrapped in parent a '<dl>' element.
Cells in a `<table>` element that use the `[headers]` attribute refer to table cells within the same table.
Screen readers and other assistive technologies have features to make navigating tables easier. Ensure that '<td>' cells using the headers attribute only refer to other cells in the same table, to improve screen reader user experience.
`<th>` elements and elements with `[role="columnheader"/"rowheader"]` have data cells they describe.
Screen readers and other assistive technologies have features to make navigating tables easier. Ensure that table headers refer to some set of cells, to improve screen reader user experience.

Names and labels

Document has a `<title>` element
Search engines, screen reader users and other assistive technology users rely on the title to provide an overview of the page and to help determine if the page is relevant to their search.
No form fields have multiple labels
Having multiple labels for form fields can be confusing to assistive technologies, like a screen reader.
`<frame>` or `<iframe>` elements have a title
Screen reader users and other assistive technology users rely on frame titles to describe the contents of frames.
Image elements have `[alt]` attributes
Provide short and descriptive alternative text where possible on informative elements.
`<input type="image">` elements have `[alt]` text
Input buttons with alternative text assist screen readers and other assistive technology users to understand its purpose.
Form elements have associated labels
Screen readers and other assistive technologies rely on labels to properly announce form controls.
`<object>` elements have `[alt]` text
It is advised that alt text is used on '<object>' elements in order to provide meaning to screen reader and other assistive technology users, as these technologies are unable to translate non-text content.

Internationalization and localization

`<html>` element has a valid value for its `[lang]` attribute
Specify a valid BCP 47 language in order to help screen readers and other assistive technologies announce text properly.
`[lang]` attributes have a valid value
Specify a valid BCP 47 language on elements in order to help screen readers and other assistive technologies announce text properly.

Best practices

The document does not use `<meta http-equiv="refresh">`
Pages that refresh automatically cause a poor user experience as focus is directed back to the top of the page unexpectedly.

Audio and video

`<video>` elements contain a `<track>` element with `[kind="captions"]`
Eia.gov may provide assistance to deaf or hearing-impaired users with captions on videos.

ARIA

`[aria-hidden="true"]` elements contain focusable descendents
Interactive elements within an aria-hidden=true element are unavailable to users of assistive technologies, like a screen reader.
Failing Elements
Monthly Energy Review Recent and historical total energy statistics
Summer Fuels Outlook Prices and consumption of gasoline and diesel fuel in the …
Gasoline and Diesel Fuel Update Weekly updates of gasoline and diesel prices ac…
U.S. Movements of Crude Oil By Rail With data through January 2021
Weekly Coal Markets Summary of average weekly coal commodity spot prices by coa…
Monthly Energy Review Recent and historical total energy statistics
Short-Term Energy Outlook April 2021 Energy projections for supply, demand, and…
ARIA IDs are not unique
Ensure all ARIA ID values are unique to prevent elements from being overlooked by assistive technologies, like a screen reader.
Failing Elements
Sources & Uses

Names and labels

Buttons do not have an accessible name
Buttons become unusable as they are announced simply as "button" when the button does not have an accessible name, when used by screen readers and other assistive technologies.
Failing Elements
button
Links do not have a discernible name
In order to improve the navigation for screen reader and other assistive technology users, use link text that is unique, focusable and discernible.

Contrast

Background and foreground colors do not have a sufficient contrast ratio.
Many (if not most) users find low-contrast text difficult or impossible to read.
Failing Elements
input
Coal Transportation Rates to the Electric Power Sector
Monthly Energy Review
Electricity Monthly Update
More
Uranium Marketing Annual Report
Domestic Uranium Production Report
More
Posted April 30, 2021
New York’s Indian Point nuclear power plant closes after 59 years of operation
More
Source: U.S. Energy Information Administration
Source:
WTI crude oil futures price
Natural gas futures price
Weekly coal production
Natural gas inventories
Crude oil inventories
EIA Acting Administrator Stephen Nalley and Assistant Administrator for Energy …
Annual Energy Outlook 2021
EIA Deputy Administrator Stephen Nalley presents EIA's Short-Term Energy Outloo…
Short-Term Energy Outlook
More
Gasoline and Diesel Fuel Update
Natural Gas Storage Report
This Week in Petroleum
Weekly Petroleum Status Report
Profiles for countries
Profiles for U.S. states
Today in Energy
Job Seekers
Policy Analysts
Media
Researchers
Students
Teachers
Survey Respondents
EIA Employees
Developers API
Short-Term Energy Outlook
Annual Energy Outlook
International Energy Outlook
Energy Explained
Frequently Asked Questions

Navigation

`[id]` attributes on active, focusable elements are not unique
Ensure all focusable elements have a unique id value to allow them to be visible to users of assistive technologies, like a screen reader.
Failing Elements
button

Internationalization and localization

`<html>` element does not have a `[lang]` attribute
It is advised to provide a lang attribute so that screen readers and other assistive technologies are guaranteed to announce the page's text correctly. When not provided, the user's default language setting will be used which may cause inaccuracies.
Failing Elements
html

Tables and lists

Lists do not contain only `<li>` elements and script supporting elements (`<script>` and `<template>`).
Use proper list structure to aid screen readers and other assistive technologies.
Failing Elements
Especially For... Job Seekers Policy Analysts Media Researchers Students Teache…
List items (`<li>`) are not contained within `<ul>` or `<ol>` parent elements.
In order for screen readers to announce list items, ensure that list items ('<li>') are contained within parent '<ul>' or '<ol>' tags.
Failing Elements
Job Seekers
Policy Analysts
Media
Researchers
Students
Teachers
Survey Respondents
EIA Employees
Developers API

Best practices

`[user-scalable="no"]` is used in the `<meta name="viewport">` element or the `[maximum-scale]` attribute is less than 5.
For users with low vision who rely on screen magnification, ensure that zooming is not disabled.
Failing Elements
meta

Manual Checks

The page has a logical tab order
The visual layout should be logical in its tab order and users cannot focus elements that are offscreen.
Interactive controls are keyboard focusable
Ensure that custom interactive controls are keyboard focusable and that a focus indicator is displayed.
Interactive elements indicate their purpose and state
Ensure that interactive elements (such as links and buttons) are distinguishable from non-interactive elements and that they indicate their state.
The user's focus is directed to new content added to the page
When new content (such as a dialogue) is added to the page, the user's focus should be directed to it.
User focus is not accidentally trapped in a region
Avoid focus being accidentally trapped when a user tabs in and out of controls or regions on page.
Custom controls have associated labels
Ensure that custom interactive controls have associated labels, which are provided by aria-label and aria-labelledby attributes.
Custom controls have ARIA roles
Ensure that all custom interactive controls have appropriate ARIA roles.
Visual order on the page follows DOM order
Ensure that the DOM order matches with the page's visual order, in order to improve navigation for screen readers and other assistive technologies.
Offscreen content is hidden from assistive technology
Ensure that offscreen content is hidden through the use of "display:none" styling or the aria-hidden attribute.
HTML5 landmark elements are used to improve navigation
Elements such as <main> and <nav> are recommended as they are used by screen readers and other assistive technologies to improve keyboard navigation.
80

Best Practices

Indicates the recommended, best practices currently in place on the page and highlights the best practices that eia.gov should incorporate. This includes practices such as protecting pages with HTTPS.

Audits

Avoids requesting the geolocation permission on page load
When requesting a user's location, provide context or consider tying the request to a user action to avoid confusion and mistrust from users.
Avoids requesting the notification permission on page load
When requesting permission to send notifications, provide context or consider tying the request to a user action to avoid confusion and mistrust from users.

Audits

Allows users to paste into password fields
Ensure that password inputs may be pasted into to aid in the user's ability to use password managers and improve security.
Displays images with correct aspect ratio
Ensure that image display dimensions match their natural aspect ratio.
Serves images with appropriate resolution
For maximum image clarity, ensure images have natural dimensions and are proportional to the display size and pixel ratio.
Fonts with `font-display: optional` are preloaded
It is recommended that optional fonts are preloaded.

Audits

Page has the HTML doctype
Ensure a doctype is specified to prevent the browser from switching to quirks-mode.
Properly defines charset
It is advised to declare a character encoding, optionally via a <meta> tag in the first 1024 bytes of the HTML or in the Content-Type HTTP response header.

Audits

Avoids `unload` event listeners
The 'unload' event does not fire reliably, causing issues with browser optimizations such as the Back-Forward Cache. It is recommended that 'pagehide' or 'visibilitychange' events are used instead.
Avoids Application Cache
Application cache is deprecated and is no longer recommended.
Detected JavaScript libraries
Below is a list of all front-end JavaScript libraries that were detected on the page.
Name Version
Highcharts
3.0.10
jQuery
1.11.1
jQuery UI
1.12.1
Avoids deprecated APIs
Avoid deprecated APIs which will eventually be removed the browser.
No browser errors logged to the console
Below is a list of all errors logged to the console, which indicate unresolved problems on the site.
Page has valid source maps
Consider deploying source maps for added benefits such as the ability to debug while in production.
No issues in the `Issues` panel in Chrome Devtools
There may be unresolved issues logged to Chrome Devtools.

Audits

Does not use HTTPS — 1 insecure request found
Ensure that all pages are protected with HTTPS (including those that do not handle sensitive data) as HTTPS prevents tampering and passive listening on communications between the app and its users. Additionally, HTTPS is a prerequisite for HTTP/2 and many new web platform APIs.
Insecure URL Request Resolution
http://eia.gov/
Allowed
Links to cross-origin destinations are unsafe
Improve performance and prevent security vulnerabilities by adding rel="noopener" and rel="noreferrer" to external links.
Includes front-end JavaScript libraries with known security vulnerabilities — 7 vulnerabilities detected
Ensure that the use of third-party scripts is minimal and that only trusted third-party scripts are used as some may contain known security vulnerabilities which may be exploited by attackers.
Library Version Vulnerability Count Highest Severity
SHOW DETAILS
3
High
SHOW DETAILS
4
Medium
91

SEO

Indicates how well the page is optimized for ranking in search engines and highlights Search Engine Optimization (SEO) opportunities for eia.gov. This includes optimizations such as providing meta data.

Mobile Friendly

Has a `<meta name="viewport">` tag with `width` or `initial-scale`
It is advised to use a '<meta name="viewport">' tag for the optimization of eia.gov on mobile screens.
Document uses legible font sizes
Font sizes of 12px or less are too small to most mobile users without user gestures and further action. Aim for more than 60% of page text to use font sizes greater than 12px.
Tap targets are sized appropriately
Interactive elements (such as buttons and links) should be appropriately spaced, sized and easy enough to select or tap with regard to their surrounding elements.

Content Best Practices

Document has a `<title>` element
Search engines, screen reader users and other assistive technology users rely on the title to provide an overview of the page and to help determine if the page is relevant to their search.
Document has a meta description
Meta descriptions may be used by search engines when displaying a link to the page and should concisely summarize the page's content.
Image elements have `[alt]` attributes
Provide short and descriptive alternative text where possible on informative elements.
Document has a valid `hreflang`
Search engines can be instructed to list specific versions of a page for a given language or region through the use of hreflang links.
Document has a valid `rel=canonical`
Search engines can be suggested which URL should be shown in search results through the use of canonical links.
Document avoids plugins
The content of plugins cannot be indexed by search engines and many devices either restrict or do not support them.

Crawling and Indexing

Page has successful HTTP status code
Avoid pages with unsuccessful HTTP status codes as they may not be indexed by search engines.
Links are crawlable
Ensure that the 'href' attribute of anchor elements links to the appropriate destination. This allows for more pages of the site to be discovered by search engines.
Page isn’t blocked from indexing
Pages that cannot be crawled by search engines cannot be indexed or included in their search results. Ensure that search engines have permission to crawl all pages that should be indexed.
robots.txt is valid
Malformed robots.txt files prevent crawlers from understanding how a site wants to be crawled or indexed, which can be devastating to SEO.

Content Best Practices

Links do not have descriptive text — 3 links found
Make use of descriptive link text to assist search engines in understanding the content.

Manual Checks

Structured data is valid
Structured data can be validated through the use of the Structured Data Testing Tool and the Structured Data Linter.
36

Progressive Web App

Indicates how valid the aspects of a Progressive Web App (PWA) are for the page and highlights opportunities to enable/improve the PWA of eia.gov. This includes details about web app manifests.

PWA Optimized

Redirects HTTP traffic to HTTPS
It is advised to redirect all HTTP traffic to HTTPS, in order to enable secure web features for all users.
Content is sized correctly for the viewport
Ensure that the width of the app's content matches the width of the viewport, otherwise the app might not be optimized for mobile screens.
Has a `<meta name="viewport">` tag with `width` or `initial-scale`
It is advised to use a '<meta name="viewport">' tag for the optimization of eia.gov on mobile screens.

Installable

Web app manifest or service worker do not meet the installability requirements — 1 reason
User engagement may be increased by leveraging the browsers ability to proactively prompt users to add the app to their homescreen.
Failure reason
No manifest was fetched

PWA Optimized

Does not register a service worker that controls page and `start_url`
A service worker is used to provide Progressive Web Apps the use of features such as working offline, the ability for the app to be added to the homescreen as well as push notifications.
Is not configured for a custom splash screen
Themed splash screens ensure a high-quality user experience at launch for app users.
View Data
Does not set a theme color for the address bar.
A theme may be applied to the browser address bar, which ideally can be made to match the site.
View Data
Does not provide a valid `apple-touch-icon`
iOS users of Progressive Web Apps will benefit from an apple touch icon, which can be defined with 'apple-touch-icon', which must point to a non-transparent 192px (or 180px) square PNG.
Manifest doesn't have a maskable icon
Maskable icons are great to ensure that images fill the entire shape when installing the app on a device.

Manual Checks

Site works cross-browser
Ensure that the Progressive Web App works correctly across every major browser.
Page transitions don't feel like they block on the network
Users perceive apps with responsive, snappy transitions as higher peforming and ensures a great user experience, even on a slow network.
Each page has a URL
Ensure that all pages are deep linkable via URL. They should also be unique for the purpose of shareability on social media.
Avg. (All Categories) 59
Performance 17
Accessibility 68
Best Practices 80
SEO 89
Progressive Web App 42
0–49 (Fail) 50–89 (Average) 90–100 (Pass)
URL: https://www.eia.gov/
Updated: 30th April, 2021

1.81 seconds
First Contentful Paint (FCP)
48%
40%
12%

0.02 seconds
First Input Delay (FID)
96%
3%
1%

Simulate loading on mobile
17

Performance

Indicates how well the page is performing and highlights opportunities where performance may be improved for eia.gov. This includes details about optimizing page load times which can result in a better user experience.

Opportunities

Minify CSS
Cascading Style Sheets (CSS) files can contribute to network payload sizes. Eia.gov should consider minifying CSS files.
Minify JavaScript
JavaScript (JS) files can contribute to network payload sizes and increase script parse times. Eia.gov should consider minifying JS files.
Enable text compression
Text-based resources should be served with compression, such as gzip, deflate or brotli.
Preconnect to required origins
Resource hints, such as 'preconnect' or 'dns-prefetch', may assist in establishing early connections to important third-party origins.
Initial server response time was short — Root document took 230 ms
It is advised to keep the server response time short for the main document, because all other requests depend on it.
URL Time Spent (Ms)
https://www.eia.gov/
229.016
Avoid multiple page redirects — Potential savings of 630 ms
Redirects can cause additional delays before the page can begin loading. Eia.gov should avoid multiple or unnecessary page redirects.
URL Time Spent (Ms)
http://eia.gov/
630
https://www.eia.gov/
0
Preload key requests
Key requests can be preloaded by using '<link rel=preload>'. Eia.gov should consider using '<link rel=preload>' to prioritize fetching resources that are currently requested later in page load.
Use video formats for animated content
Large GIFs are inefficient for delivering animated content. It is recommended to use MPEG4/WebM videos for animations and PNG/WebP for static images instead of GIF.
Remove duplicate modules in JavaScript bundles
Ensure that no duplicate JavaScript modules from bundles exist to reduce bytes consumed by network activity.
Avoid serving legacy JavaScript to modern browsers — Potential savings of 0 KiB
Polyfills and transforms enable legacy browsers to use new JavaScript features. For bundled JavaScript it is recommended to adopt a modern script deployment strategy using module/nomodule feature detection. This will reduce the amount of code shipped to modern browsers.
URL Potential Savings (Bytes)
https://s7.addthis.com/static/layers.fa6cd1947ce26e890d3d.js
58
https://s7.addthis.com/js/300/addthis_widget.js
54
https://www.eia.gov/global/scripts/global.min.js?v=3.7
52
Preload Largest Contentful Paint image
It is recommended to preload images used by LCP elements, to improve LCP time.
URL Potential Savings (Ms)
https://www.eia.gov/homepage/images/slider/STEO.jpg
0

Diagnostics

Avoid chaining critical requests — 13 chains found
Below is a list of Critical Request Chains, which shows which resources are loaded with a high priority. Eia.gov should consider reducing the length of chains, reducing the download size of resources, or deferring the download of unnecessary resources to improve page load.
User Timing marks and measures — 1 user timing
Make use of the User Timing API to measure an app's real-world performance during key user experiences.
Name Type Start Time (Ms) Duration (Ms)
addthis.render_toolbox
Mark
3246.891
All text remains visible during webfont loads
Make use of the font-display CSS feature, which will ensure text is user-visible while webfonts are loading.
Keep request counts low and transfer sizes small — 56 requests • 2,884 KiB
It is advised to add a budgets.json file in order to set budgets for the quantity and size of page resources.
Resource Type Requests Transfer Size (Bytes)
Total
56
2953712
Image
17
2019313
Script
24
616329
Document
5
161848
Stylesheet
4
149140
Other
6
7082
Media
0
0
Font
0
0
Third-party
24
517458
Lazy load third-party resources with facades
Consider replacing third-party embeds with a facade until they are required (use lazy loading).
Largest Contentful Paint element — 1 element found
The element which was identified as the Largest Contentful Paint.
Element
Short-Term Energy Outlook April 2021
Avoid large layout shifts — 1 element found
Below is a list of all DOM elements that contribute to the CLS of the page.
Element CLS Contribution
What's New Coal Transportation Rates to the Electric Power Sector Apr 28, 2021 …
0.4
Uses passive listeners to improve scrolling performance
Improve the page's scroll performance by marking touch and wheel event listeners as 'passive'.
Avoids `document.write()`
Avoid or limit the use of external scripts that are dynamically injected via 'document.write()' as users on slow connections will be delayed by tens of seconds.
Avoid long main-thread tasks — 16 long tasks found
Below is a list of the longest tasks on the main thread, which is useful when identifying the worst input delay contributors.
URL Start Time (Ms) Duration (Ms)
https://www.eia.gov/global/scripts/global.min.js?v=3.7
7350
299
https://s7.addthis.com/js/300/addthis_widget.js
3757
252
https://www.eia.gov/global/scripts/vendor/jquery-ui/jquery.ui.min.js
6570
204
https://platform.twitter.com/widgets/widget_iframe.06c6ee58c3810956b7509218508c7b56.html?origin=https%3A%2F%2Fwww.eia.gov
11841
173
https://s7.addthis.com/static/layers.fa6cd1947ce26e890d3d.js
10431
161
https://www.eia.gov/
1666
144
https://s7.addthis.com/static/sh.f48a1a04fe8dbf021b4cda1d.html#rand=0.637634366592069&iit=1619798982352&tmr=load%3D1619798982082%26core%3D1619798982129%26main%3D1619798982346%26ifr%3D1619798982356&cb=0&cdn=0&md=0&kw=&ab=-&dh=www.eia.gov&dr=&du=https%3A%2F%2Fwww.eia.gov%2F&href=https%3A%2F%2Fwww.eia.gov%2F&dt=Homepage%20-%20U.S.%20Energy%20Information%20Administration%20(EIA)&dbg=0&cap=tc%3D0%26ab%3D0&inst=1&jsl=33&prod=undefined&lng=en&ogt=url%2Ctitle&pc=men&pub=ra-514b0d4a047a687f&ssl=1&sid=608c2bc65123f28e&srf=0.01&ver=300&xck=1&xtr=0&og=title%3DHomepage%2520-%2520U.S.%2520Energy%2520Information%2520Administration%2520(EIA)%26url%3Dhttps%253A%252F%252Fwww.eia.gov%252Findex.php&csi=undefined&rev=v8.28.8-wp&ct=1&xld=1&xd=1
4207
111
https://platform.twitter.com/widgets.js
9861
103
https://www.eia.gov/global/scripts/vendor/jquery/jquery.min.js
4318
93
Unattributable
1810
87
https://search.usa.gov/assets/sayt_loader_libs.js
24360
86
https://www.eia.gov/
630
70
https://ssl.google-analytics.com/ga.js
7854
67
https://www.eia.gov/global/styles/global.min.css?v=1.13
2940
57
https://v1.addthisedge.com/live/boost/ra-514b0d4a047a687f/_ate.track.config_resp
8429
52
https://connect.facebook.net/en_US/sdk.js?hash=3e744d8e8a7515f1edec88675af949e9&ua=modern_es6
10761
52
Avoid non-composited animations
It is recommended to avoid non-composited animations which are often janky and increase CLS.

Budgets

Performance budget
It is advised to keep the quantity and size of all network requests under the targets set by the provided performance budget.
Timing budget
It is advised to set a timing budget to monitor the performance of your site.

Other

Network Requests
Below is a list of network requests that were made during page load.
URL Protocol Start Time (Ms) End Time (Ms) Transfer Size (Bytes) Resource Size (Bytes) Status Code MIME Type Resource Type
http://eia.gov/
http/1.1
0
79.030000022613
155
0
301
https://www.eia.gov/
http/1.1
79.703000024892
307.72300006356
16420
62873
200
text/html
Document
https://www.eia.gov/global/styles/global.min.css?v=1.13
http/1.1
329.26800008863
941.24800001737
118589
499079
200
text/css
Stylesheet
https://www.eia.gov/global/scripts/vendor/jquery/jquery.min.js
http/1.1
329.56500002183
512.40700006019
36549
95790
200
text/javascript
Script
https://www.eia.gov/global/scripts/vendor/jquery-migrate/jquery.migrate.min.js
http/1.1
329.81500006281
415.94400000758
3594
7200
200
text/javascript
Script
https://www.eia.gov/global/scripts/vendor/jquery-ui/jquery.ui.min.js
http/1.1
330.64600010403
2709.0420000022
76962
253668
200
text/javascript
Script
https://www.eia.gov/global/scripts/vendor/jquery-ui/jquery.ui.touch-punch.min.js
http/1.1
330.8670000406
481.90200002864
1032
1291
200
text/javascript
Script
https://www.eia.gov/global/scripts/jquery/highcharts/3.0.10/js/highcharts.js
http/1.1
331.05300005991
505.8030000655
60381
149193
200
text/javascript
Script
https://www.eia.gov/global/scripts/jquery/highcharts/3.0.10/js/highcharts-more.js
http/1.1
331.34200004861
694.42600000184
9220
22618
200
text/javascript
Script
https://www.eia.gov/global/scripts/jquery/highcharts/3.0.10/js/modules/exporting.js
http/1.1
332.08700001705
677.12300003041
3663
7321
200
text/javascript
Script
https://www.eia.gov/global/scripts/jquery/highcharts/3.0.10/js/modules/no-data-to-display.js
http/1.1
332.42300001439
418.08600001968
1191
1368
200
text/javascript
Script
https://www.eia.gov/global/scripts/jquery/ga/ga-file-downloads.js
http/1.1
332.5940000359
727.09100006614
1518
2874
200
text/javascript
Script
https://www.eia.gov/global/survey/engine/js/survey_engine.js
http/1.1
332.77700003237
537.32000000309
4338
14888
200
text/javascript
Script
https://www.eia.gov/global/survey/engine/css/layout.css
http/1.1
332.94700004626
450.57300000917
2360
6347
200
text/css
Stylesheet
https://s7.addthis.com/js/300/addthis_widget.js
h2
1068.8260000898
1169.0330000129
116721
361292
200
application/javascript
Script
https://www.eia.gov/global/images/logos/eia_logo_print.png
http/1.1
1187.1939999983
1305.5320000276
9602
9252
200
image/png
Image
https://www.eia.gov/homepage/images/slider/STEO.jpg
http/1.1
1307.1130000753
1404.5920000644
375372
374984
200
image/jpeg
Image
https://www.eia.gov/homepage/images/slider/summerfuels.jpg
http/1.1
1406.7040000809
1514.4510000246
295925
295536
200
image/jpeg
Image
https://www.eia.gov/homepage/images/slider/gasolineanddieselprices.jpg
http/1.1
1516.6830000235
1615.007000044
194048
193661
200
image/jpeg
Image
https://www.eia.gov/homepage/images/slider/crude_by_rail.jpg
http/1.1
1617.0290000737
2124.2320000893
127784
127396
200
image/jpeg
Image
https://www.eia.gov/homepage/images/slider/HB_coalmarkets.jpg
http/1.1
2125.9820000269
2581.8370000925
344169
343782
200
image/jpeg
Image
https://www.eia.gov/homepage/images/slider/MER.jpg
http/1.1
2584.7020000219
2693.7130000442
46616
46230
200
image/jpeg
Image
https://www.eia.gov/todayinenergy/images/2021.04.30/main.svg
http/1.1
2695.6290000817
2841.305000009
198320
290466
200
image/svg+xml
Image
https://www.eia.gov/homepage/images/features/930_featureimage.jpg
http/1.1
2723.1900000479
4959.5720000798
62301
61982
200
image/jpeg
Image
https://www.eia.gov/homepage/images/features/AEO2021_featureimage.png
http/1.1
2768.1760000996
2924.5950001059
128562
128242
200
image/png
Image
https://www.eia.gov/homepage/images/features/EIAatlas_featureimage.jpg
http/1.1
2768.3510000352
2918.1720000925
88272
87953
200
image/jpeg
Image
https://www.eia.gov/homepage/images/energy-kids/kids-mobile-spring.png
http/1.1
2768.4950000839
3198.3440000331
98173
97855
200
image/png
Image
https://www.eia.gov/global/scripts/global.min.js?v=3.7
http/1.1
944.33500000741
1057.1710000513
52977
186429
200
text/javascript
Script
https://www.eia.gov/global/styles/global.print.min.css?v=1.11
http/1.1
2768.9760000212
3051.2590000872
24946
125532
200
text/css
Stylesheet
https://ssl.google-analytics.com/ga.js
h2
2768.6690000119
2773.7500000512
17798
46274
200
text/javascript
Script
https://ds-aksb-a.akamaihd.net/aksb.min.js
http/1.1
2768.8330000965
2883.8290000567
5216
13363
200
application/x-javascript
Script
https://www.eia.gov/global/images/energy-kids/energy-ant.png
http/1.1
2774.9490001006
2855.6570000947
47181
46862
200
image/png
Image
data
2780.7400000747
2780.8290000539
0
2324
200
image/svg+xml
Image
data
2782.7420000685
2782.8110000119
0
626
200
image/svg+xml
Image
data
2784.6990000689
2784.7490001004
0
626
200
image/svg+xml
Image
data
2788.1180000259
2788.1710000802
0
500
200
image/svg+xml
Image
https://z.moatads.com/addthismoatframe568911941483/moatframe.js
h2
2855.3200000897
2877.5510000996
1391
1705
200
application/x-javascript
Script
https://www.eia.gov/global/scripts/search.usa.gov/remote.loader.js
http/1.1
2858.1960001029
3226.032000035
1312
2162
200
text/javascript
Script
data
2867.527000024
2867.5800000783
0
127
200
image/svg+xml
Image
data
2869.5060000755
2869.585000095
0
127
200
image/svg+xml
Image
data
2875.1880000345
2875.2480000257
0
106
200
image/svg+xml
Image
data
2878.8760000607
2878.9490000345
0
244
200
image/svg+xml
Image
data
2880.6530000875
2880.7210000232
0
312
200
image/svg+xml
Image
data
2882.4890000978
2882.5630000792
0
529
200
image/svg+xml
Image
data
2884.352000081
2884.4260000624
0
701
200
image/svg+xml
Image
data
2885.9459999949
2886.0150000546
0
313
200
image/svg+xml
Image
data
2887.5900000567
2887.6510000555
0
471
200
image/svg+xml
Image
data
2889.0489999903
2889.0970000066
0
648
200
image/svg+xml
Image
data
2890.5230000382
2890.5720000621
0
503
200
image/svg+xml
Image
https://www.eia.gov/global/includes/bookshelf/index.php
http/1.1
3039.5700000226
3584.0810000664
3974
16794
200
application/json
XHR
https://www.eia.gov/global/survey/engine/data/index.php?a=g&p=%2F
http/1.1
3052.5309999939
3466.2700000918
748
415
200
application/json
XHR
https://v1.addthisedge.com/live/boost/ra-514b0d4a047a687f/_ate.track.config_resp
h2
3076.4750000089
3159.3850000063
784
1323
200
application/javascript
Script
https://m.addthis.com/live/red_lojson/300lo.json?si=608c2bc65123f28e&bkl=0&bl=1&pdt=332&sid=608c2bc65123f28e&pub=ra-514b0d4a047a687f&rev=v8.28.8-wp&ln=en&pc=men&cb=0&ab=-&dp=www.eia.gov&fp=&fr=&of=1&pd=0&irt=0&vcl=0&md=0&ct=1&tct=0&abt=0&cdn=0&pi=1&rb=0&gen=100&chr=UTF-8&colc=1619798982360&jsl=33&skipb=1&callback=addthis.cbs.jsonp__99612908263065750
h2
3086.815000046
3197.0030000666
352
101
200
application/javascript
Script
https://s7.addthis.com/static/sh.f48a1a04fe8dbf021b4cda1d.html
3089.1190000111
3090.3790000593
0
0
-1
Document
https://s7.addthis.com/static/sh.f48a1a04fe8dbf021b4cda1d.html
h2
3094.2000000505
3126.6340001021
26853
72412
200
text/html
Document
https://ssl.google-analytics.com/r/__utm.gif?utmwv=5.7.2&utms=1&utmn=738890267&utmhn=www.eia.gov&utmcs=UTF-8&utmsr=360x640&utmvp=360x640&utmsc=24-bit&utmul=en-us&utmje=0&utmfl=-&utmdt=Homepage%20-%20U.S.%20Energy%20Information%20Administration%20(EIA)&utmhid=1366326564&utmr=-&utmp=%2F&utmht=1619798982416&utmac=UA-25837230-1&utmcc=__utma%3D165580587.1735126733.1619798982.1619798982.1619798982.1%3B%2B__utmz%3D165580587.1619798982.1.1.utmcsr%3D(direct)%7Cutmccn%3D(direct)%7Cutmcmd%3D(none)%3B&utmjid=1890961045&utmredir=1&utmu=qBAAAAAAAAAAAAAAAAAAAAAE~
http/1.1
3151.6110000666
3230.7370000053
758
0
302
text/html
https://stats.g.doubleclick.net/r/collect?v=1&aip=1&t=dc&_r=3&tid=UA-25837230-1&cid=1735126733.1619798982&jid=1890961045&_v=5.7.2&z=738890267
http/1.1
3231.2580000143
3238.8229999924
812
0
302
text/html
https://www.google.com/ads/ga-audiences?v=1&aip=1&t=sr&_r=4&tid=UA-25837230-1&cid=1735126733.1619798982&jid=1890961045&_v=5.7.2&z=738890267
h2
3240.6010000268
3248.0030000443
678
42
200
image/gif
Image
https://s7.addthis.com/static/layers.fa6cd1947ce26e890d3d.js
h2
3241.8950001011
3276.7920000479
78023
269557
200
application/javascript
Script
https://platform.twitter.com/widgets.js
http/1.1
3248.8480000757
3305.0030000741
29309
97358
200
application/javascript
Script
https://connect.facebook.net/en_US/sdk.js
h2
3251.1750000995
3265.4320000438
2869
3224
200
application/x-javascript
Script
https://search.usa.gov/assets/sayt.css
http/1.1
3260.6870000018
3345.3810000792
3245
11494
200
text/css
Stylesheet
https://search.usa.gov/assets/sayt_loader_libs.js
http/1.1
3261.1230000621
3350.2720000688
42378
126916
200
application/javascript
Script
https://connect.facebook.net/en_US/sdk.js?hash=3e744d8e8a7515f1edec88675af949e9&ua=modern_es6
h2
3303.4150000894
3325.5280000158
65921
215580
200
application/x-javascript
Script
https://platform.twitter.com/widgets/widget_iframe.06c6ee58c3810956b7509218508c7b56.html?origin=https%3A%2F%2Fwww.eia.gov
http/1.1
3382.1990001015
3479.3040000368
105823
326875
200
text/html
Document
https://www.facebook.com/common/scribe_endpoint.php?c=jssdk_error&m=%7B%22error%22%3A%22LOAD%22%2C%20%22extra%22%3A%20%7B%22name%22%3A%22Error%22%2C%22line%22%3A%22undefined%22%2C%22script%22%3A%22undefined%22%2C%22stack%22%3A%22Error%3A%20Module%20FB%20has%20not%20been%20defined%0A%20%20%20%20at%20j%20(https%3A%2F%2Fconnect.facebook.net%2Fen_US%2Fsdk.js%3Fhash%3D3e744d8e8a7515f1edec88675af949e9%26ua%3Dmodern_es6%3A24%3A295)%0A%20%20%20%20at%20k%20(https%3A%2F%2Fconnect.facebook.net%2Fen_US%2Fsdk.js%3Fhash%3D3e744d8e8a7515f1edec88675af949e9%26ua%3Dmodern_es6%3A24%3A977)%0A%20%20%20%20at%20Object.%3Canonymous%3E%20(https%3A%2F%2Fconnect.facebook.net%2Fen_US%2Fsdk.js%3Fhash%3D3e744d8e8a7515f1edec88675af949e9%26ua%3Dmodern_es6%3A47%3A61)%0A%20%20%20%20at%20j%20(https%3A%2F%2Fconnect.facebook.net%2Fen_US%2Fsdk.js%3Fhash%3D3e744d8e8a7515f1edec88675af949e9%26ua%3Dmodern_es6%3A24%3A793)%0A%20%20%20%20at%20k%20(https%3A%2F%2Fconnect.facebook.net%2Fen_US%2Fsdk.js%3Fhash%3D3e744d8e8a7515f1edec88675af949e9%26ua%3Dmodern_es6%3A24%3A977)%0A%20%20%20%20at%20Object.n%20%5Bas%20__d%5D%20(https%3A%2F%2Fconnect.facebook.net%2Fen_US%2Fsdk.js%3Fhash%3D3e744d8e8a7515f1edec88675af949e9%26ua%3Dmodern_es6%3A24%3A1294)%0A%20%20%20%20at%20Object.%3Canonymous%3E%20(https%3A%2F%2Fconnect.facebook.net%2Fen_US%2Fsdk.js%3Fhash%3D3e744d8e8a7515f1edec88675af949e9%26ua%3Dmodern_es6%3A47%3A1)%0A%20%20%20%20at%20https%3A%2F%2Fconnect.facebook.net%2Fen_US%2Fsdk.js%3Fhash%3D3e744d8e8a7515f1edec88675af949e9%26ua%3Dmodern_es6%3A186%3A452%0A%20%20%20%20at%20https%3A%2F%2Fconnect.facebook.net%2Fen_US%2Fsdk.js%3Fhash%3D3e744d8e8a7515f1edec88675af949e9%26ua%3Dmodern_es6%3A186%3A467%22%2C%22revision%22%3A%221003714818%22%2C%22namespace%22%3A%22FB%22%2C%22message%22%3A%22Module%20FB%20has%20not%20been%20defined%22%7D%7D
h2
3402.0870000822
3429.7770000994
1349
67
200
image/png
Image
https://syndication.twitter.com/settings?session_id=3b939e8e5f333d714639369633fd82206de8b93d
h2
3544.9770000996
3693.8270000974
635
184
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application/json
Fetch
https://platform.twitter.com/js/button.5573c974dc31bbdab5ea7923a0bd5cf3.js
http/1.1
3702.2100000177
3755.885999999
2830
6910
200
application/javascript
Script
https://platform.twitter.com/widgets/tweet_button.06c6ee58c3810956b7509218508c7b56.en.html
http/1.1
3778.5420001019
3835.7600000454
12752
32927
200
text/html
Document
https://syndication.twitter.com/i/jot?dnt=1&l=%7B%22widget_origin%22%3A%22https%3A%2F%2Fwww.eia.gov%2F%22%2C%22widget_frame%22%3Afalse%2C%22language%22%3A%22en%22%2C%22message%22%3A%22m%3Anocount%3A%22%2C%22_category_%22%3A%22tfw_client_event%22%2C%22triggered_on%22%3A1619798983249%2C%22dnt%22%3Atrue%2C%22client_version%22%3A%2282e1070%3A1619632193066%22%2C%22format_version%22%3A1%2C%22event_namespace%22%3A%7B%22client%22%3A%22tfw%22%2C%22page%22%3A%22button%22%2C%22section%22%3A%22share%22%2C%22action%22%3A%22impression%22%7D%7D
h2
3974.8170000967
4115.7810000004
692
43
200
image/gif
Image
https://ds-aksb-a.akamaihd.net/2/421524/b?dE=0&cS=0&cE=0&rqS=0&rsS=229&rsE=229&sS=&dl=234&di=2964&fp=2801&dlS=2964&dlE=3015&dc=4886&leS=4886&leE=4887&to=&ol=0&cr=19&mt=&mb=&b=257&u=https%3A//www.eia.gov/&ua=Mozilla/5.0%20%28Linux%3B%20Android%207.0%3B%20Moto%20G%20%284%29%29%20AppleWebKit/537.36%20%28KHTML%2C%20like%20Gecko%29%20Chrome/90.0.4420.0%20Mobile%20Safari/537.36%20Chrome-Lighthouse&pl=Linux%20x86_64&us=&gh=23.218.93.175&t=&rid=60e0072&r=38633&akM=dscb&akN=ae&vc=14:17&bpcip=43cd8900&akTX=1&akTI=60e0072&ai=269977&pmgn=&pmgi=&pmp=
http/1.1
5068.6060000444
5169.4560000906
269
0
204
text/html
Image
Network Round Trip Times — 0 ms
High Network RTT (Round Trip Times) can have a large impact on performance. Providing servers geographically closer to the user could improve performance.
Server Backend Latencies — 0 ms
High server latencies indicate the server is overloaded or has a poor backend performance.
Tasks
Below is a list of the top-level main thread tasks that executed during page load.
Start Time (Ms) End Time (Ms)
344.631
10.702
360.819
6.118
977.023
14.363
991.494
23.177
2756.81
50.916
2807.74
19.53
2827.965
62.886
2896.774
72.012
2970.592
5.88
2979.566
149.34
3130.793
7.538
3149.584
33.596
3188.938
21.678
3215.594
8.436
3228.644
34.98
3272.87
13.096
3296.995
27.703
3341.098
40.368
3389.073
25.697
3422.242
13.043
3436.192
21.532
3459.578
17.629
3516.235
7.783
3536.013
43.174
3730
6.052
3794.717
16.273
3873.462
8.898
3884.854
10.527
Diagnostics
Below is a collection of useful page vitals.
View Data
Metrics
Below is a collection of metrics.
View Data

Other

Estimated Input Latency — 70 ms
The time taken for the page to respond to user input (during the busiest 5 second window of page load). Users are likely to perceive eia.gov as laggy when the latency is higher than 0.05 seconds.

Opportunities

Properly size images — Potential savings of 30 KiB
Images can slow down the page's load time. Eia.gov should consider serving more appropriate-sized images.
URL Resource Size (Bytes) Potential Savings (Bytes)
https://www.eia.gov/homepage/images/slider/STEO.jpg
374984
9563
https://www.eia.gov/homepage/images/slider/HB_coalmarkets.jpg
343782
8767
https://www.eia.gov/homepage/images/slider/summerfuels.jpg
295536
7537
https://www.eia.gov/homepage/images/slider/gasolineanddieselprices.jpg
193661
4939
Remove unused CSS — Potential savings of 133 KiB
Dead and/or unused rules in Style Sheets (CSS) can contribute to network payload sizes. Eia.gov should consider removing dead rules from style sheets and deferring the loading of CSS not used for above-the-fold content.
URL Transfer Size (Bytes) Potential Savings (Bytes)
https://www.eia.gov/global/styles/global.min.css?v=1.13
118589
110810
https://www.eia.gov/global/styles/global.print.min.css?v=1.11
24946
24946

Diagnostics

Avoid enormous network payloads — Total size was 2,884 KiB
Large network payloads can cost users money and are linked to long load times.
URL Transfer Size (Bytes)
https://www.eia.gov/homepage/images/slider/STEO.jpg
375372
https://www.eia.gov/homepage/images/slider/HB_coalmarkets.jpg
344169
https://www.eia.gov/homepage/images/slider/summerfuels.jpg
295925
https://www.eia.gov/todayinenergy/images/2021.04.30/main.svg
198320
https://www.eia.gov/homepage/images/slider/gasolineanddieselprices.jpg
194048
https://www.eia.gov/homepage/images/features/AEO2021_featureimage.png
128562
https://www.eia.gov/homepage/images/slider/crude_by_rail.jpg
127784
https://www.eia.gov/global/styles/global.min.css?v=1.13
118589
https://s7.addthis.com/js/300/addthis_widget.js
116721
https://platform.twitter.com/widgets/widget_iframe.06c6ee58c3810956b7509218508c7b56.html?origin=https%3A%2F%2Fwww.eia.gov
105823
Avoid an excessive DOM size — 939 elements
A large DOM (Document Object Model) will increase memory usage, cause longer system calculations as well as costly layout reflows.
Statistic Element Value
Total DOM Elements
939
Maximum DOM Depth
ul
13
Maximum Child Elements
A | B | C | D | E | F | G | …
24
Reduce JavaScript execution time — 2.0 s
JavaScript (JS) execution time can be lowered by reducing the time required for parsing, compiling and executing JS. Delivering smaller JS payloads may help with this.
URL Total CPU Time (Ms) Script Evaluation (Ms) Script Parse (Ms)
https://www.eia.gov/
764.088
20.332
7.768
Unattributable
479.152
30.428
0.532
https://s7.addthis.com/js/300/addthis_widget.js
415.592
363.216
30.444
https://www.eia.gov/global/scripts/global.min.js?v=3.7
391.06
316.504
15.836
https://platform.twitter.com/widgets.js
226.228
188.796
14.276
https://platform.twitter.com/widgets/widget_iframe.06c6ee58c3810956b7509218508c7b56.html?origin=https%3A%2F%2Fwww.eia.gov
210.832
35.532
87.708
https://www.eia.gov/global/scripts/vendor/jquery/jquery.min.js
190.648
151.808
7.064
https://s7.addthis.com/static/layers.fa6cd1947ce26e890d3d.js
177.408
143.856
18.592
https://search.usa.gov/assets/sayt_loader_libs.js
161.008
138.508
9.756
https://ssl.google-analytics.com/ga.js
135.356
122.272
5.936
https://s7.addthis.com/static/sh.f48a1a04fe8dbf021b4cda1d.html#rand=0.637634366592069&iit=1619798982352&tmr=load%3D1619798982082%26core%3D1619798982129%26main%3D1619798982346%26ifr%3D1619798982356&cb=0&cdn=0&md=0&kw=&ab=-&dh=www.eia.gov&dr=&du=https%3A%2F%2Fwww.eia.gov%2F&href=https%3A%2F%2Fwww.eia.gov%2F&dt=Homepage%20-%20U.S.%20Energy%20Information%20Administration%20(EIA)&dbg=0&cap=tc%3D0%26ab%3D0&inst=1&jsl=33&prod=undefined&lng=en&ogt=url%2Ctitle&pc=men&pub=ra-514b0d4a047a687f&ssl=1&sid=608c2bc65123f28e&srf=0.01&ver=300&xck=1&xtr=0&og=title%3DHomepage%2520-%2520U.S.%2520Energy%2520Information%2520Administration%2520(EIA)%26url%3Dhttps%253A%252F%252Fwww.eia.gov%252Findex.php&csi=undefined&rev=v8.28.8-wp&ct=1&xld=1&xd=1
119.76
90.128
20.324
https://www.eia.gov/global/scripts/vendor/jquery-ui/jquery.ui.min.js
106.024
77.816
19.704
https://www.eia.gov/global/styles/global.min.css?v=1.13
57.452
0
0
https://v1.addthisedge.com/live/boost/ra-514b0d4a047a687f/_ate.track.config_resp
52.96
50.812
0.836
https://connect.facebook.net/en_US/sdk.js?hash=3e744d8e8a7515f1edec88675af949e9&ua=modern_es6
52.172
19.452
26.46
Minimize main-thread work — 3.8 s
Main-thread work timing can be lowered by reducing the time required for parsing, compiling and executing JS. Delivering smaller JS payloads may help with this.
Category Time Spent (Ms)
Script Evaluation
1885.732
Other
635.3
Style & Layout
543.528
Script Parsing & Compilation
330.884
Parse HTML & CSS
240.536
Rendering
162.74
Garbage Collection
23.276

Metrics

First Contentful Paint — 4.6 s
The time taken for the first image or text on the page to be rendered.
Speed Index — 10.0 s
The time taken for the page contents to be visibly populated.
Largest Contentful Paint — 12.3 s
The timing of the largest text or image that is painted.
Time to Interactive — 17.1 s
The time taken for the page to become fully interactive.
Total Blocking Time — 770 ms
The total blocking time is the sum of all time periods between First Contentful Paint and Time to Interactive (when task length exceeded 50ms).
Cumulative Layout Shift — 0.4
Cumulative Layout Shift is the measurement of visible elements collective movement within the viewport.
View Data

Other

First CPU Idle — 8.4 s
The time taken for the page's main thread to be quiet enough to handle input.
Max Potential First Input Delay — 300 ms
Users could experience a delay when interacting with the page.
First Meaningful Paint — 5.3 s
The time taken for the primary content of the page to be rendered.
First Contentful Paint (3G) — 9507 ms
The time taken for the first image or text on the page to be rendered while on a 3G network.

Opportunities

Eliminate render-blocking resources — Potential savings of 3,650 ms
Resources, such as JavaScript and style sheets, can block the first paint of the page. Eia.gov should consider delivering critical JavaScript/style sheets (JS/CSS) inline and deferring all non-critical JS/CSS.
URL Transfer Size (Bytes) Potential Savings (Ms)
https://www.eia.gov/global/styles/global.min.css?v=1.13
118589
2430
https://www.eia.gov/global/survey/engine/css/layout.css
2360
480
https://www.eia.gov/global/scripts/vendor/jquery/jquery.min.js
36549
1530
https://www.eia.gov/global/scripts/vendor/jquery-migrate/jquery.migrate.min.js
3594
480
https://www.eia.gov/global/scripts/vendor/jquery-ui/jquery.ui.min.js
76962
2130
https://www.eia.gov/global/scripts/vendor/jquery-ui/jquery.ui.touch-punch.min.js
1032
480
https://www.eia.gov/global/scripts/jquery/highcharts/3.0.10/js/highcharts.js
60381
1530
https://www.eia.gov/global/scripts/jquery/highcharts/3.0.10/js/highcharts-more.js
9220
480
https://www.eia.gov/global/scripts/jquery/highcharts/3.0.10/js/modules/exporting.js
3663
180
https://www.eia.gov/global/scripts/jquery/highcharts/3.0.10/js/modules/no-data-to-display.js
1191
180
https://www.eia.gov/global/scripts/jquery/ga/ga-file-downloads.js
1518
180
https://www.eia.gov/global/survey/engine/js/survey_engine.js
4338
180
Defer offscreen images — Potential savings of 840 KiB
Time to Interactive can be slowed down by resources on the page. Eia.gov should consider lazy-loading offscreen and hidden images.
URL Resource Size (Bytes) Potential Savings (Bytes)
https://www.eia.gov/homepage/images/slider/HB_coalmarkets.jpg
343782
343782
https://www.eia.gov/homepage/images/slider/gasolineanddieselprices.jpg
193661
193661
https://www.eia.gov/homepage/images/slider/crude_by_rail.jpg
127396
127396
https://www.eia.gov/homepage/images/energy-kids/kids-mobile-spring.png
97855
97855
https://www.eia.gov/homepage/images/features/EIAatlas_featureimage.jpg
87953
87953
https://www.eia.gov/global/images/logos/eia_logo_print.png
9252
9252
Remove unused JavaScript — Potential savings of 467 KiB
It is advised to remove unused JavaScript in order to reduce bytes consumed by network activity.
URL Transfer Size (Bytes) Potential Savings (Bytes)
https://platform.twitter.com/widgets/widget_iframe.06c6ee58c3810956b7509218508c7b56.html?origin=https%3A%2F%2Fwww.eia.gov
105777
102149
https://www.eia.gov/global/scripts/vendor/jquery-ui/jquery.ui.min.js
76962
65949
https://s7.addthis.com/js/300/addthis_widget.js
116721
57577
https://connect.facebook.net/en_US/sdk.js?hash=3e744d8e8a7515f1edec88675af949e9&ua=modern_es6
65921
55500
https://www.eia.gov/global/scripts/jquery/highcharts/3.0.10/js/highcharts.js
60381
53953
https://www.eia.gov/global/scripts/global.min.js?v=3.7
52977
43364
https://s7.addthis.com/static/layers.fa6cd1947ce26e890d3d.js
78023
41031
https://s7.addthis.com/static/sh.f48a1a04fe8dbf021b4cda1d.html
72197
33171
https://search.usa.gov/assets/sayt_loader_libs.js
42378
25511
Efficiently encode images — Potential savings of 898 KiB
Unoptimized images can consume more cellular data than what is necessary.
URL Resource Size (Bytes) Potential Savings (Bytes)
https://www.eia.gov/homepage/images/slider/STEO.jpg
374984
251185
https://www.eia.gov/homepage/images/slider/HB_coalmarkets.jpg
343782
233198
https://www.eia.gov/homepage/images/slider/summerfuels.jpg
295536
211030
https://www.eia.gov/homepage/images/slider/gasolineanddieselprices.jpg
193661
126632
https://www.eia.gov/homepage/images/features/EIAatlas_featureimage.jpg
87953
51426
https://www.eia.gov/homepage/images/features/930_featureimage.jpg
61982
41392
https://www.eia.gov/homepage/images/slider/MER.jpg
46230
4485
Serve images in next-gen formats — Potential savings of 1,298 KiB
Image formats like PNG and JPEG have poor compression when compared to other next-gen formats, such as JPEG 200, JPEG XR and WebP.
URL Resource Size (Bytes) Potential Savings (Bytes)
https://www.eia.gov/homepage/images/slider/STEO.jpg
374984
284056
https://www.eia.gov/homepage/images/slider/HB_coalmarkets.jpg
343782
267760
https://www.eia.gov/homepage/images/slider/summerfuels.jpg
295536
246982
https://www.eia.gov/homepage/images/slider/gasolineanddieselprices.jpg
193661
158261
https://www.eia.gov/homepage/images/features/AEO2021_featureimage.png
128242
110730
https://www.eia.gov/homepage/images/energy-kids/kids-mobile-spring.png
97855
75525
https://www.eia.gov/homepage/images/features/EIAatlas_featureimage.jpg
87953
60463
https://www.eia.gov/homepage/images/features/930_featureimage.jpg
61982
50296
https://www.eia.gov/global/images/energy-kids/energy-ant.png
46862
28736
https://www.eia.gov/homepage/images/slider/MER.jpg
46230
24500
https://www.eia.gov/homepage/images/slider/crude_by_rail.jpg
127396
22044

Diagnostics

Serve static assets with an efficient cache policy — 22 resources found
Eia.gov can speed up repeat visits by increasing the cache lifetime, which is essentially how long before a cached copy expires.
URL Cache TTL (Ms) Transfer Size (Bytes)
https://www.eia.gov/todayinenergy/images/2021.04.30/main.svg
0
198320
https://www.eia.gov/homepage/images/features/AEO2021_featureimage.png
0
128562
https://www.eia.gov/homepage/images/energy-kids/kids-mobile-spring.png
0
98173
https://www.eia.gov/homepage/images/features/EIAatlas_featureimage.jpg
0
88272
https://www.eia.gov/homepage/images/features/930_featureimage.jpg
0
62301
https://www.eia.gov/global/images/energy-kids/energy-ant.png
0
47181
https://www.eia.gov/global/images/logos/eia_logo_print.png
0
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https://v1.addthisedge.com/live/boost/ra-514b0d4a047a687f/_ate.track.config_resp
1000
784
https://www.eia.gov/homepage/images/slider/HB_coalmarkets.jpg
2000
344169
https://www.eia.gov/homepage/images/slider/crude_by_rail.jpg
27000
127784
https://www.eia.gov/homepage/images/slider/MER.jpg
32000
46616
https://www.eia.gov/homepage/images/slider/gasolineanddieselprices.jpg
144000
194048
https://www.eia.gov/homepage/images/slider/summerfuels.jpg
187000
295925
https://www.eia.gov/homepage/images/slider/STEO.jpg
211000
375372
https://s7.addthis.com/js/300/addthis_widget.js
600000
116721
https://connect.facebook.net/en_US/sdk.js
1200000
2869
https://platform.twitter.com/widgets.js
1800000
29309
https://search.usa.gov/assets/sayt_loader_libs.js
3600000
42378
https://search.usa.gov/assets/sayt.css
3600000
3245
https://ssl.google-analytics.com/ga.js
7200000
17798
https://z.moatads.com/addthismoatframe568911941483/moatframe.js
38219000
1391
https://ds-aksb-a.akamaihd.net/aksb.min.js
43200000
5216
Reduce the impact of third-party code — Third-party code blocked the main thread for 430 ms
It is advised to either limit, remove or delay the loading of redundant third-party code which may be significantly impacting load performance.
Third-Party Transfer Size (Bytes) Main-Thread Blocking Time (Ms)
SHOW DETAILS
222733
303.18
SHOW DETAILS
18556
69.16
SHOW DETAILS
152041
57.428
SHOW DETAILS
70139
0
SHOW DETAILS
5485
0
SHOW DETAILS
1391
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SHOW DETAILS
812
0
SHOW DETAILS
678
0
Image elements do not have explicit `width` and `height`
Reduce layout shifts and improve CLS by setting explicit width and height properties on image elements.
URL Failing Elements
https://www.eia.gov/homepage/images/slider/STEO.jpg
Short-Term Energy Outlook April 2021
https://www.eia.gov/homepage/images/slider/STEO.jpg
Short-Term Energy Outlook April 2021
https://www.eia.gov/homepage/images/slider/HB_coalmarkets.jpg
Weekly Coal Markets
https://www.eia.gov/homepage/images/slider/summerfuels.jpg
Summer Fuels Outlook
https://www.eia.gov/todayinenergy/images/2021.04.30/main.svg
New York state nuclear power plants
https://www.eia.gov/homepage/images/slider/gasolineanddieselprices.jpg
Gasoline and Diesel Fuel Update
https://www.eia.gov/homepage/images/features/AEO2021_featureimage.png
Annual Energy Outlook 2021
https://www.eia.gov/homepage/images/slider/crude_by_rail.jpg
U.S. Movements of Crude Oil By Rail
https://www.eia.gov/homepage/images/energy-kids/kids-mobile-spring.png
Small image of Energy Kids banner with host Energy Ant
https://www.eia.gov/homepage/images/features/EIAatlas_featureimage.jpg
U.S. Energy Atlas
https://www.eia.gov/homepage/images/features/930_featureimage.jpg
Hourly Electric Grid Monitor
https://www.eia.gov/homepage/images/slider/MER.jpg
Monthly Energy Review
https://www.eia.gov/homepage/images/slider/MER.jpg
Monthly Energy Review
68

Accessibility

Indicates how accessible the page is and highlights opportunities where the page can be made more accessible to users of eia.gov. This includes details about various page attributes that can be optimized.

Navigation

`[accesskey]` values are unique
Access keys assist users with focusing on different parts of the page. Each access key should be unique for proper navigation.
The page contains a heading, skip link, or landmark region
It is advised to provide ways to bypass repetitive content, allowing users to navigate the page efficiently.
Heading elements appear in a sequentially-descending order
Properly order all headers and do not skip heading levels to better the navigation and readability for users of assistive technologies, like a screen reader.
No element has a `[tabindex]` value greater than 0
Although technically valid, a tabindex value greater than 0 often creates frustrating experiences for users who rely on assistive technologies.

ARIA

`[aria-*]` attributes match their roles
Avoid mismatching 'aria-*' attributes and their 'role' value, as it invalidates the attribute.
`button`, `link`, and `menuitem` elements have accessible names
Without accessible names on elements, screen readers will default to announcing a generic name, which means your content will be less accessible to users who rely on screen readers.
`[aria-hidden="true"]` is not present on the document `<body>`
If aria-hidden=true is set on the document body, assistive technologies, like a screen reader will work inconsistently.
ARIA input fields have accessible names
Generic names are announced to users of assistive technologies, like a screen reader, when an input field does not have an accessible name specified.
ARIA `meter` elements have accessible names
Without accessible names on elements, screen readers will default to announcing a generic name, which means your content will be less accessible to users who rely on screen readers.
ARIA `progressbar` elements have accessible names
Without accessible names on elements, screen readers will default to announcing a generic name, which means your content will be less accessible to users who rely on screen readers.
`[role]`s have all required `[aria-*]` attributes
Some ARIA roles have required 'aria-*' attributes, which provide essential information about state and functionality.
Elements with an ARIA `[role]` that require children to contain a specific `[role]` have all required children.
Some ARIA parent roles cannot perform their intended functions if specific child roles are not used.
`[role]`s are contained by their required parent element
Some ARIA child roles cannot perform their intended functions if specific parent roles are not used.
`[role]` values are valid
All ARIA roles require valid values to perform their intended functions.
ARIA toggle fields have accessible names
Generic names are announced to users of assistive technologies, like a screen reader, when a toggle field does not have an accessible name specified.
ARIA `tooltip` elements have accessible names
Without accessible names on elements, screen readers will default to announcing a generic name, which means your content will be less accessible to users who rely on screen readers.
ARIA `treeitem` elements have accessible names
Without accessible names on elements, screen readers will default to announcing a generic name, which means your content will be less accessible to users who rely on screen readers.
`[aria-*]` attributes have valid values
ARIA attributes cannot be interpreted with invalid values when used by screen readers and other assistive technologies.
`[aria-*]` attributes are valid and not misspelled
ARIA attributes cannot be interpreted with invalid names when used by screen readers and other assistive technologies.

Tables and lists

`<dl>`'s contain only properly-ordered `<dt>` and `<dd>` groups, `<script>`, `<template>` or `<div>` elements.
Screen readers and other assistive technologies may produce poor and inaccurate output when definition lists are not properly marked up.
Definition list items are wrapped in `<dl>` elements
In order for screen readers and other assistive technologies to properly announce definition list items ('<dt>' and '<dd>'), they must be wrapped in parent a '<dl>' element.
Cells in a `<table>` element that use the `[headers]` attribute refer to table cells within the same table.
Screen readers and other assistive technologies have features to make navigating tables easier. Ensure that '<td>' cells using the headers attribute only refer to other cells in the same table, to improve screen reader user experience.
`<th>` elements and elements with `[role="columnheader"/"rowheader"]` have data cells they describe.
Screen readers and other assistive technologies have features to make navigating tables easier. Ensure that table headers refer to some set of cells, to improve screen reader user experience.

Names and labels

Document has a `<title>` element
Search engines, screen reader users and other assistive technology users rely on the title to provide an overview of the page and to help determine if the page is relevant to their search.
No form fields have multiple labels
Having multiple labels for form fields can be confusing to assistive technologies, like a screen reader.
`<frame>` or `<iframe>` elements have a title
Screen reader users and other assistive technology users rely on frame titles to describe the contents of frames.
Image elements have `[alt]` attributes
Provide short and descriptive alternative text where possible on informative elements.
`<input type="image">` elements have `[alt]` text
Input buttons with alternative text assist screen readers and other assistive technology users to understand its purpose.
Form elements have associated labels
Screen readers and other assistive technologies rely on labels to properly announce form controls.
`<object>` elements have `[alt]` text
It is advised that alt text is used on '<object>' elements in order to provide meaning to screen reader and other assistive technology users, as these technologies are unable to translate non-text content.

Internationalization and localization

`<html>` element has a valid value for its `[lang]` attribute
Specify a valid BCP 47 language in order to help screen readers and other assistive technologies announce text properly.
`[lang]` attributes have a valid value
Specify a valid BCP 47 language on elements in order to help screen readers and other assistive technologies announce text properly.

Best practices

The document does not use `<meta http-equiv="refresh">`
Pages that refresh automatically cause a poor user experience as focus is directed back to the top of the page unexpectedly.

Audio and video

`<video>` elements contain a `<track>` element with `[kind="captions"]`
Eia.gov may provide assistance to deaf or hearing-impaired users with captions on videos.

ARIA

`[aria-hidden="true"]` elements contain focusable descendents
Interactive elements within an aria-hidden=true element are unavailable to users of assistive technologies, like a screen reader.
Failing Elements
Monthly Energy Review Recent and historical total energy statistics
Summer Fuels Outlook Prices and consumption of gasoline and diesel fuel in the …
Gasoline and Diesel Fuel Update Weekly updates of gasoline and diesel prices ac…
U.S. Movements of Crude Oil By Rail With data through January 2021
Weekly Coal Markets Summary of average weekly coal commodity spot prices by coa…
Monthly Energy Review Recent and historical total energy statistics
Short-Term Energy Outlook April 2021 Energy projections for supply, demand, and…
ARIA IDs are not unique
Ensure all ARIA ID values are unique to prevent elements from being overlooked by assistive technologies, like a screen reader.
Failing Elements
Sources & Uses

Names and labels

Buttons do not have an accessible name
Buttons become unusable as they are announced simply as "button" when the button does not have an accessible name, when used by screen readers and other assistive technologies.
Failing Elements
button
Links do not have a discernible name
In order to improve the navigation for screen reader and other assistive technology users, use link text that is unique, focusable and discernible.

Contrast

Background and foreground colors do not have a sufficient contrast ratio.
Many (if not most) users find low-contrast text difficult or impossible to read.
Failing Elements
Coal Transportation Rates to the Electric Power Sector
Monthly Energy Review
Electricity Monthly Update
More
Uranium Marketing Annual Report
Domestic Uranium Production Report
More
Posted April 30, 2021
More
Source: U.S. Energy Information Administration
Source:
WTI crude oil futures price
Natural gas futures price
Weekly coal production
Natural gas inventories
Crude oil inventories
EIA Acting Administrator Stephen Nalley and Assistant Administrator for Energy …
Annual Energy Outlook 2021
EIA Deputy Administrator Stephen Nalley presents EIA's Short-Term Energy Outloo…
Short-Term Energy Outlook
More
Gasoline and Diesel Fuel Update
Natural Gas Storage Report
This Week in Petroleum
Weekly Petroleum Status Report
Profiles for countries
Profiles for U.S. states
Today in Energy
Job Seekers
Policy Analysts
Media
Researchers
Students
Teachers
Survey Respondents
EIA Employees
Developers API
Short-Term Energy Outlook
Annual Energy Outlook
International Energy Outlook
Energy Explained
Frequently Asked Questions

Navigation

`[id]` attributes on active, focusable elements are not unique
Ensure all focusable elements have a unique id value to allow them to be visible to users of assistive technologies, like a screen reader.
Failing Elements
button

Internationalization and localization

`<html>` element does not have a `[lang]` attribute
It is advised to provide a lang attribute so that screen readers and other assistive technologies are guaranteed to announce the page's text correctly. When not provided, the user's default language setting will be used which may cause inaccuracies.
Failing Elements
html

Tables and lists

Lists do not contain only `<li>` elements and script supporting elements (`<script>` and `<template>`).
Use proper list structure to aid screen readers and other assistive technologies.
Failing Elements
Especially For... Job Seekers Policy Analysts Media Researchers Students Teache…
List items (`<li>`) are not contained within `<ul>` or `<ol>` parent elements.
In order for screen readers to announce list items, ensure that list items ('<li>') are contained within parent '<ul>' or '<ol>' tags.
Failing Elements
Job Seekers
Policy Analysts
Media
Researchers
Students
Teachers
Survey Respondents
EIA Employees
Developers API

Best practices

`[user-scalable="no"]` is used in the `<meta name="viewport">` element or the `[maximum-scale]` attribute is less than 5.
For users with low vision who rely on screen magnification, ensure that zooming is not disabled.
Failing Elements
meta

Manual Checks

The page has a logical tab order
The visual layout should be logical in its tab order and users cannot focus elements that are offscreen.
Interactive controls are keyboard focusable
Ensure that custom interactive controls are keyboard focusable and that a focus indicator is displayed.
Interactive elements indicate their purpose and state
Ensure that interactive elements (such as links and buttons) are distinguishable from non-interactive elements and that they indicate their state.
The user's focus is directed to new content added to the page
When new content (such as a dialogue) is added to the page, the user's focus should be directed to it.
User focus is not accidentally trapped in a region
Avoid focus being accidentally trapped when a user tabs in and out of controls or regions on page.
Custom controls have associated labels
Ensure that custom interactive controls have associated labels, which are provided by aria-label and aria-labelledby attributes.
Custom controls have ARIA roles
Ensure that all custom interactive controls have appropriate ARIA roles.
Visual order on the page follows DOM order
Ensure that the DOM order matches with the page's visual order, in order to improve navigation for screen readers and other assistive technologies.
Offscreen content is hidden from assistive technology
Ensure that offscreen content is hidden through the use of "display:none" styling or the aria-hidden attribute.
HTML5 landmark elements are used to improve navigation
Elements such as <main> and <nav> are recommended as they are used by screen readers and other assistive technologies to improve keyboard navigation.
80

Best Practices

Indicates the recommended, best practices currently in place on the page and highlights the best practices that eia.gov should incorporate. This includes practices such as protecting pages with HTTPS.

Audits

Avoids requesting the geolocation permission on page load
When requesting a user's location, provide context or consider tying the request to a user action to avoid confusion and mistrust from users.
Avoids requesting the notification permission on page load
When requesting permission to send notifications, provide context or consider tying the request to a user action to avoid confusion and mistrust from users.

Audits

Allows users to paste into password fields
Ensure that password inputs may be pasted into to aid in the user's ability to use password managers and improve security.
Displays images with correct aspect ratio
Ensure that image display dimensions match their natural aspect ratio.
Serves images with appropriate resolution
For maximum image clarity, ensure images have natural dimensions and are proportional to the display size and pixel ratio.
Fonts with `font-display: optional` are preloaded
It is recommended that optional fonts are preloaded.

Audits

Page has the HTML doctype
Ensure a doctype is specified to prevent the browser from switching to quirks-mode.
Properly defines charset
It is advised to declare a character encoding, optionally via a <meta> tag in the first 1024 bytes of the HTML or in the Content-Type HTTP response header.

Audits

Avoids `unload` event listeners
The 'unload' event does not fire reliably, causing issues with browser optimizations such as the Back-Forward Cache. It is recommended that 'pagehide' or 'visibilitychange' events are used instead.
Avoids Application Cache
Application cache is deprecated and is no longer recommended.
Detected JavaScript libraries
Below is a list of all front-end JavaScript libraries that were detected on the page.
Name Version
Highcharts
3.0.10
jQuery
1.11.1
jQuery UI
1.12.1
Avoids deprecated APIs
Avoid deprecated APIs which will eventually be removed the browser.
No browser errors logged to the console
Below is a list of all errors logged to the console, which indicate unresolved problems on the site.
Page has valid source maps
Consider deploying source maps for added benefits such as the ability to debug while in production.
No issues in the `Issues` panel in Chrome Devtools
There may be unresolved issues logged to Chrome Devtools.

Audits

Does not use HTTPS — 1 insecure request found
Ensure that all pages are protected with HTTPS (including those that do not handle sensitive data) as HTTPS prevents tampering and passive listening on communications between the app and its users. Additionally, HTTPS is a prerequisite for HTTP/2 and many new web platform APIs.
Insecure URL Request Resolution
http://eia.gov/
Allowed
Links to cross-origin destinations are unsafe
Improve performance and prevent security vulnerabilities by adding rel="noopener" and rel="noreferrer" to external links.
Includes front-end JavaScript libraries with known security vulnerabilities — 7 vulnerabilities detected
Ensure that the use of third-party scripts is minimal and that only trusted third-party scripts are used as some may contain known security vulnerabilities which may be exploited by attackers.
Library Version Vulnerability Count Highest Severity
SHOW DETAILS
3
High
SHOW DETAILS
4
Medium
89

SEO

Indicates how well the page is optimized for ranking in search engines and highlights Search Engine Optimization (SEO) opportunities for eia.gov. This includes optimizations such as providing meta data.

Mobile Friendly

Has a `<meta name="viewport">` tag with `width` or `initial-scale`
It is advised to use a '<meta name="viewport">' tag for the optimization of eia.gov on mobile screens.
Document uses legible font sizes — 99.4% legible text
Font sizes of 12px or less are too small to most mobile users without user gestures and further action. Aim for more than 60% of page text to use font sizes greater than 12px.
Source Selector % of Page Text Font Size
SHOW DETAILS
SHOW DETAILS
0.33%
11px
SHOW DETAILS
span.ico_down, span.ico_up
0.21%
0px
SHOW DETAILS
SHOW DETAILS
0.06%
11px
SHOW DETAILS
99.40%
≥ 12px

Content Best Practices

Document has a `<title>` element
Search engines, screen reader users and other assistive technology users rely on the title to provide an overview of the page and to help determine if the page is relevant to their search.
Document has a meta description
Meta descriptions may be used by search engines when displaying a link to the page and should concisely summarize the page's content.
Image elements have `[alt]` attributes
Provide short and descriptive alternative text where possible on informative elements.
Document has a valid `hreflang`
Search engines can be instructed to list specific versions of a page for a given language or region through the use of hreflang links.
Document has a valid `rel=canonical`
Search engines can be suggested which URL should be shown in search results through the use of canonical links.
Document avoids plugins
The content of plugins cannot be indexed by search engines and many devices either restrict or do not support them.

Crawling and Indexing

Page has successful HTTP status code
Avoid pages with unsuccessful HTTP status codes as they may not be indexed by search engines.
Links are crawlable
Ensure that the 'href' attribute of anchor elements links to the appropriate destination. This allows for more pages of the site to be discovered by search engines.
Page isn’t blocked from indexing
Pages that cannot be crawled by search engines cannot be indexed or included in their search results. Ensure that search engines have permission to crawl all pages that should be indexed.
robots.txt is valid
Malformed robots.txt files prevent crawlers from understanding how a site wants to be crawled or indexed, which can be devastating to SEO.

Mobile Friendly

Tap targets are not sized appropriately — 63% appropriately sized tap targets
Interactive elements (such as buttons and links) should be appropriately spaced, sized and easy enough to select or tap with regard to their surrounding elements.
Tap Target Size Overlapping Target
Coal
28x16
Petroleum
Coal
28x16
Natural Gas
Maps
34x16
Countries
States
39x16
Countries
Natural Gas
74x16
Renewable
Nuclear
48x16
Renewable
Nuclear
48x16
Electricity
Electricity
59x16
Consumption
Consumption
82x16
Total Energy
Environment
78x16
Analysis & Projections
Environment
78x16
Markets & Finance
Markets & Finance
116x16
Energy Disruptions
Energy Disruptions
118x16
Today in Energy
A-Z Index
60x16
All Reports & Publications
All Reports & Publications
161x16
Data Tools, Apps, and Maps
Data Tools, Apps, and Maps
174x16
EIA Survey Forms
EIA Beta
54x16
EIA Survey Forms
Privacy/Security
100x16
Copyright & Reuse
Accessibility
76x16
Copyright & Reuse
Accessibility
76x16
Information Quality
Information Quality
117x16
Freedom of Information Act (FOIA)
USA.gov
67x16
U.S. Department of Energy
Facebook
93x16
Twitter
Twitter
73x16
Youtube
Youtube
82x16
Flickr
Flickr
65x16
LinkedIn
LinkedIn
84x16
Email Updates
Email Updates
111x16
RSS Feeds

Content Best Practices

Links do not have descriptive text — 3 links found
Make use of descriptive link text to assist search engines in understanding the content.

Manual Checks

Structured data is valid
Structured data can be validated through the use of the Structured Data Testing Tool and the Structured Data Linter.
42

Progressive Web App

Indicates how valid the aspects of a Progressive Web App (PWA) are for the page and highlights opportunities to enable/improve the PWA of eia.gov. This includes details about web app manifests.

PWA Optimized

Redirects HTTP traffic to HTTPS
It is advised to redirect all HTTP traffic to HTTPS, in order to enable secure web features for all users.
Content is sized correctly for the viewport
Ensure that the width of the app's content matches the width of the viewport, otherwise the app might not be optimized for mobile screens.
Has a `<meta name="viewport">` tag with `width` or `initial-scale`
It is advised to use a '<meta name="viewport">' tag for the optimization of eia.gov on mobile screens.

Installable

Web app manifest or service worker do not meet the installability requirements — 1 reason
User engagement may be increased by leveraging the browsers ability to proactively prompt users to add the app to their homescreen.
Failure reason
No manifest was fetched

PWA Optimized

Does not register a service worker that controls page and `start_url`
A service worker is used to provide Progressive Web Apps the use of features such as working offline, the ability for the app to be added to the homescreen as well as push notifications.
Is not configured for a custom splash screen
Themed splash screens ensure a high-quality user experience at launch for app users.
View Data
Does not set a theme color for the address bar.
A theme may be applied to the browser address bar, which ideally can be made to match the site.
View Data
Does not provide a valid `apple-touch-icon`
iOS users of Progressive Web Apps will benefit from an apple touch icon, which can be defined with 'apple-touch-icon', which must point to a non-transparent 192px (or 180px) square PNG.
Manifest doesn't have a maskable icon
Maskable icons are great to ensure that images fill the entire shape when installing the app on a device.

Manual Checks

Site works cross-browser
Ensure that the Progressive Web App works correctly across every major browser.
Page transitions don't feel like they block on the network
Users perceive apps with responsive, snappy transitions as higher peforming and ensures a great user experience, even on a slow network.
Each page has a URL
Ensure that all pages are deep linkable via URL. They should also be unique for the purpose of shareability on social media.
Hosting

Server Location

Server IP Address: 205.254.135.7
Continent:
Country:
Region:
City:
Longitude:
Latitude:
Currencies:
Languages:

Web Hosting Provider

Name IP Address
U.S. Department of Energy
Registration

Domain Registrant

Private Registration: No
Name:
Organization:
Country:
City:
State:
Post Code:
Email:
Phone:
Note: Registration information is derived from various sources and may be inaccurate.

Domain Registrar

Security

Visitor Safety

Mature Content: Not Likely
McAfee WebAdvisor Rating: Safe
WOT Rating:
WOT Trustworthiness: 92/100
WOT Child Safety: 94/100
Note: Safety information is not guaranteed.

SSL/TLS Certificate

Issued To: www.eia.gov
Issued By: GeoTrust RSA CA 2018
Valid From: 7th April, 2021
Valid To: 17th July, 2021
Subject: CN = www.eia.gov
O = Department of Energy
L = Washington, D.C.
S = US
Hash: 18435a10
Issuer: CN = GeoTrust RSA CA 2018
OU = www.digicert.com
O = DigiCert Inc
S = US
Version: 2
Serial Number: 6496106032561795725512778477348776534
Serial Number (Hex): 04E31AC15D37E2709EE18EABA8EAEA56
Valid From: 7th April, 2024
Valid To: 17th July, 2024
Signature Algorithm (Short Name): RSA-SHA256
Signature Algorithm (Long Name): sha256WithRSAEncryption
Authority Key Identifier: keyid:90:58:FF:B0:9C:75:A8:51:54:77:B1:ED:F2:A3:43:16:38:9E:6C:C5
Extended Key Usage: TLS Web Server Authentication, TLS Web Client Authentication
CRL Distribution Points:
Full Name:
URI:http://cdp.geotrust.com/GeoTrustRSACA2018.crl
Certificate Policies: Policy: 2.23.140.1.2.2
CPS: http://www.digicert.com/CPS
Authority Information Access: OCSP - URI:http://status.geotrust.com
CA Issuers - URI:http://cacerts.geotrust.com/GeoTrustRSACA2018.crt
SCT List: Signed Certificate Timestamp:
Version : v1 (0x0)
Log ID : F6:5C:94:2F:D1:77:30:22:14:54:18:08:30:94:56:8E:
E3:4D:13:19:33:BF:DF:0C:2F:20:0B:CC:4E:F1:64:E3
Timestamp : Apr 7 18:57:53.952 2021 GMT
Extensions: none
Signature : ecdsa-with-SHA256
30:46:02:21:00:ED:3B:0A:78:25:E3:F3:AE:32:6E:8D:
89:EC:86:31:6A:61:26:22:03:18:46:B7:05:55:5E:04:
C1:51:67:F5:BB:02:21:00:F8:5C:8C:4F:3E:A3:C5:A7:
A6:C0:45:7B:08:D7:40:24:73:CB:2C:94:AE:BE:1A:79:
98:B4:C3:E1:7F:7D:8C:4F
Signed Certificate Timestamp:
Version : v1 (0x0)
Log ID : 5C:DC:43:92:FE:E6:AB:45:44:B1:5E:9A:D4:56:E6:10:
37:FB:D5:FA:47:DC:A1:73:94:B2:5E:E6:F6:C7:0E:CA
Timestamp : Apr 7 18:57:53.981 2021 GMT
Extensions: none
Signature : ecdsa-with-SHA256
30:45:02:21:00:98:60:C1:2E:74:94:20:B8:01:C1:EF:
74:88:F7:13:1D:4B:7B:04:90:3D:E5:68:4B:F7:87:B6:
B6:FE:ED:57:B4:02:20:65:AB:38:B4:40:E4:33:02:57:
35:43:60:94:B1:4B:34:9E:D8:18:27:A0:0A:17:E8:AB:
84:A8:94:05:BB:9E:14
Signed Certificate Timestamp:
Version : v1 (0x0)
Log ID : EE:C0:95:EE:8D:72:64:0F:92:E3:C3:B9:1B:C7:12:A3:
69:6A:09:7B:4B:6A:1A:14:38:E6:47:B2:CB:ED:C5:F9
Timestamp : Apr 7 18:57:54.037 2021 GMT
Extensions: none
Signature : ecdsa-with-SHA256
30:45:02:21:00:CA:13:52:F5:95:40:B7:9B:15:5B:B2:
3B:2D:23:A7:01:A2:34:65:84:76:F6:A7:7F:D3:FF:10:
8B:EE:CB:2A:57:02:20:63:9B:BE:09:E0:B7:C7:12:21:
A9:C2:7D:42:14:95:FF:DB:A6:FC:2A:05:01:38:4C:4F:
20:7D:13:8E:E1:51:C0
Key Usage: Digital Signature, Key Encipherment
Basic Constraints: CA:FALSE
Subject Alternative Name: DNS:api.eia.gov
DNS:cdn.eia.gov
DNS:eia.gov
DNS:maps.eia.gov
DNS:vizapi.eia.gov
DNS:www.eia.gov
Technical

DNS Lookup

A Records

Host IP Address Class TTL
eia.gov. 205.254.135.7 IN 4

NS Records

Host Nameserver Class TTL
eia.gov. phantom.eia.gov. IN 4
eia.gov. redball.eia.gov. IN 4

AAAA Records

IP Address Class TTL
2607:f368:1000:1001::1007 IN 4

MX Records

Priority Host Server Class TTL
10 eia.gov. mxb-002bc302.gslb.gpphosted.com. IN 4
10 eia.gov. mxa-002bc302.gslb.gpphosted.com. IN 4

SOA Records

Domain Name Primary NS Responsible Email TTL
eia.gov. redball.eia.gov. oitnetwork.eia.doe.gov. 59

TXT Records

Host Value Class TTL
eia.gov. webexdomainverification.MY29=efa5c2f0-dcc2-4a8b-a3f0-1efbe1146cd9 IN 5
eia.gov. google-site-verification=gAUG5SK1GPTyq1kG98Gp8XCrTh5MKxXbj_Jlp5Dlp3A IN 5
eia.gov. JY+0iWejZTbeXsvvxesFdi5dGxV0yvH96zh1tQi48oyp3EdI0wvNwZDG1NNAVEPkv34j44Tqoa2n/pdETblC1A== IN 5
eia.gov. v=spf1 IN 5

HTTP Response Headers

HTTP-Code: HTTP/1.1 503 Service Unavailable
Server: AkamaiGHost
Content-Type: text/html
Expires: 30th April, 2021
Cache-Control: max-age=0, no-cache, no-store
Date: 30th April, 2021
Mime-Version: 1.0
Content-Length: 176
Pragma: no-cache
Connection: keep-alive

Whois Lookup

Created:
Changed:
Expires:
Status:
Nameservers: phantom.eia.gov
redball.eia.gov
Full Whois: % DOTGOV WHOIS Server ready
Domain Name: EIA.GOV
Status: ACTIVE
Security Contact Email: marc.cree@eia.gov

>>> Last update of whois database: 2021-04-30T16:09:04Z <<<

Please be advised that this whois server only contains information pertaining
to the .GOV domain. For information for other domains please use the whois
server at RS.INTERNIC.NET.
View Raw Whois

Nameservers

Name IP Address
phantom.eia.gov 205.254.135.9
redball.eia.gov 205.254.159.231
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Domain Valuation Snoop Score
eia.com
0/5
eia.com.uy
0/5
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0/5
eia.edu.pl
0/5
eia.es
0/5

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