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Report Summary

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    Performance

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    Accessibility

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    Best Practices

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    SEO

eere.energy.gov

Office of Energy Efficiency and Renewable Energy | Department of Energy

Page Load Speed

2 sec in total

First Response

59 ms

Resources Loaded

1.4 sec

Page Rendered

558 ms

eere.energy.gov screenshot

About Website

Welcome to eere.energy.gov homepage info - get ready to check Eere Energy best content for United States right away, or after learning these important things about eere.energy.gov

EERE drives U.S. leadership in the research, development, validation, and effective utilization of energy technologies and processes, ensuring an integrated energy system that is affordable, reliable,...

Visit eere.energy.gov

Key Findings

We analyzed Eere.energy.gov page load time and found that the first response time was 59 ms and then it took 1.9 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 40% of websites can load faster.

Performance Metrics

eere.energy.gov performance score

0

Network Requests Diagram

eere.energy.gov

59 ms

www.eere.energy.gov

88 ms

44 ms

office-energy-efficiency-renewable-energy

36 ms

js

97 ms

Our browser made a total of 67 requests to load all elements on the main page. We found that 3% of them (2 requests) were addressed to the original Eere.energy.gov, 39% (26 requests) were made to Energy.gov and 13% (9 requests) were made to Googletagmanager.com. The less responsive or slowest element that took the longest time to load (322 ms) relates to the external source Www1.eere.energy.gov.

Page Optimization Overview & Recommendations

Page size can be reduced by 732.4 kB (23%)

Content Size

3.2 MB

After Optimization

2.5 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Eere.energy.gov main page is 3.2 MB. This result falls beyond the top 1M of websites and identifies a large and not optimized web page that may take ages to load. 70% of websites need less resources to load. Images take 2.7 MB which makes up the majority of the site volume.

HTML Optimization

-82%

Potential reduce by 73.7 kB

  • Original 89.9 kB
  • After minification 72.3 kB
  • After compression 16.3 kB

HTML content can be minified and compressed by a website’s server. The most efficient way is to compress content using GZIP which reduces data amount travelling through the network between server and browser. This page needs HTML code to be minified as it can gain 17.6 kB, which is 20% of the original size. It is highly recommended that content of this web page should be compressed using GZIP, as it can save up to 73.7 kB or 82% of the original size.

Image Optimization

-23%

Potential reduce by 624.2 kB

  • Original 2.7 MB
  • After minification 2.1 MB

Image size optimization can help to speed up a website loading time. The chart above shows the difference between the size before and after optimization. Obviously, Eere Energy needs image optimization as it can save up to 624.2 kB or 23% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-9%

Potential reduce by 32.5 kB

  • Original 374.5 kB
  • After minification 374.4 kB
  • After compression 342.0 kB

It’s better to minify JavaScript in order to improve website performance. The diagram shows the current total size of all JavaScript files against the prospective JavaScript size after its minification and compression. This website has mostly compressed JavaScripts.

CSS Optimization

-2%

Potential reduce by 2.1 kB

  • Original 86.0 kB
  • After minification 85.4 kB
  • After compression 84.0 kB

CSS files minification is very important to reduce a web page rendering time. The faster CSS files can load, the earlier a page can be rendered. Eere.energy.gov has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 29 (51%)

Requests Now

57

After Optimization

28

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 57 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Eere Energy. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 25 to 1 for JavaScripts and from 6 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

eere.energy.gov

eere.energy.gov

59 ms

www.eere.energy.gov

www.eere.energy.gov

88 ms

44 ms

office-energy-efficiency-renewable-energy

office-energy-efficiency-renewable-energy

36 ms

js

js

97 ms

google_tag.script.js

google_tag.script.js

43 ms

google_tag.script.js

google_tag.script.js

50 ms

css_VeMk4NrPV6bUvWV_vfvTfjRruwkbOntX93DJBR7izSk.css

css_VeMk4NrPV6bUvWV_vfvTfjRruwkbOntX93DJBR7izSk.css

49 ms

css_i88rmDkTHI9dpTyc5xblO8Ac1salMOZNZvze0U0dFA0.css

css_i88rmDkTHI9dpTyc5xblO8Ac1salMOZNZvze0U0dFA0.css

58 ms

js_-Xn6Y2uHdkytMdKt13dD6xqU5yXknpTH4KjwuXP-kW0.js

js_-Xn6Y2uHdkytMdKt13dD6xqU5yXknpTH4KjwuXP-kW0.js

53 ms

24bc2d8eeb.js

24bc2d8eeb.js

171 ms

v4-shims.js

v4-shims.js

93 ms

jquery-migrate-3.3.0.min.js

jquery-migrate-3.3.0.min.js

92 ms

7226.js

7226.js

122 ms

js_6sRLoER_2xGoRrB08SSF8PI3WtCDgybYAk93-sD3sQw.js

js_6sRLoER_2xGoRrB08SSF8PI3WtCDgybYAk93-sD3sQw.js

91 ms

Universal-Federated-Analytics-Min.js

Universal-Federated-Analytics-Min.js

81 ms

js_joBlC9k9Gch_vx-veHo3GbwHQ6iQK-3-9VzXM-bdSKc.js

js_joBlC9k9Gch_vx-veHo3GbwHQ6iQK-3-9VzXM-bdSKc.js

80 ms

css

css

113 ms

js

js

105 ms

js

js

180 ms

energy_crest_small.png

energy_crest_small.png

145 ms

buildings_industry-3.html

buildings_industry-3.html

322 ms

search_icon.svg

search_icon.svg

74 ms

energy_seal.png

energy_seal.png

77 ms

texture_header_grey.jpg

texture_header_grey.jpg

78 ms

CEC%20GCC%20Thumbnail.PNG

CEC%20GCC%20Thumbnail.PNG

218 ms

Employment-450x270.png

Employment-450x270.png

76 ms

Funding-450x270-v2.png

Funding-450x270-v2.png

88 ms

shutterstock_91776401.jpg

shutterstock_91776401.jpg

88 ms

26962.jpg

26962.jpg

89 ms

double-paned-windows-berkeley-roy-kaltschmidt.png

double-paned-windows-berkeley-roy-kaltschmidt.png

217 ms

shutterstock_615886970.jpg

shutterstock_615886970.jpg

87 ms

right_circle_icon_gray.svg

right_circle_icon_gray.svg

223 ms

energy_white.png

energy_white.png

220 ms

Karla-Bold.woff

Karla-Bold.woff

315 ms

Karla-Regular.woff

Karla-Regular.woff

220 ms

Karla-Italic.woff

Karla-Italic.woff

218 ms

Karla-BoldItalic.woff

Karla-BoldItalic.woff

217 ms

www.energy.gov.json

www.energy.gov.json

63 ms

gtm.js

gtm.js

65 ms

gtm.js

gtm.js

291 ms

analytics.js

analytics.js

154 ms

js

js

156 ms

js

js

247 ms

js

js

136 ms

k92idz2uaf

k92idz2uaf

275 ms

collect

collect

104 ms

collect

collect

101 ms

jquery.min.js

jquery.min.js

201 ms

bootstrap.css

bootstrap.css

246 ms

css

css

199 ms

style.css

style.css

256 ms

pym.v1.min.js

pym.v1.min.js

260 ms

shim.js

shim.js

263 ms

collect

collect

210 ms

collect

collect

37 ms

collect

collect

21 ms

clarity.js

clarity.js

25 ms

green-3.png

green-3.png

156 ms

green-back.png

green-back.png

155 ms

qkBIXvYC6trAT55ZBi1ueQVIjQTD-JqaE0lP.ttf

qkBIXvYC6trAT55ZBi1ueQVIjQTD-JqaE0lP.ttf

23 ms

qkBIXvYC6trAT55ZBi1ueQVIjQTDH52aE0lP.ttf

qkBIXvYC6trAT55ZBi1ueQVIjQTDH52aE0lP.ttf

27 ms

collect

collect

27 ms

js

js

39 ms

ga-audiences

ga-audiences

31 ms

ga-audiences

ga-audiences

118 ms

c.gif

c.gif

8 ms

SEO Factors

eere.energy.gov SEO score

0

Language and Encoding

  • Language Detected

    EN

  • Language Claimed

    EN

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Eere.energy.gov can be misinterpreted by Google and other search engines. Our service has detected that English is used on the page, and it matches the claimed language. Our system also found out that Eere.energy.gov main page’s claimed encoding is utf-8. Use of this encoding format is the best practice as the main page visitors from all over the world won’t have any issues with symbol transcription.

Social Sharing Optimization

eere.energy.gov

Open Graph data is detected on the main page of Eere Energy. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: