Tools & Wizards About Us
tools.decc.gov.uk screenshot

Report Summary

  • 79

    Performance

    Renders faster than
    85% of other websites

  • 100

    Accessibility

    Visual factors better than
    that of 97% of websites

  • 92

    Best Practices

    More advanced features
    available than in
    80% of websites

  • 96

    SEO

    Google-friendlier than
    90% of websites

tools.decc.gov.uk

[Withdrawn] Statistics at BEIS - Department for Business, Energy & Industrial Strategy - GOV.UK

Page Load Speed

2.6 sec in total

First Response

687 ms

Resources Loaded

1.2 sec

Page Rendered

682 ms

tools.decc.gov.uk screenshot

About Website

Click here to check amazing Tools Decc content for United Kingdom. Otherwise, check out these important facts you probably never knew about tools.decc.gov.uk

Statistics on business, emissions, energy sources, prices and efficiency, fuel poverty, and the survey of public attitudes towards business and energy policy.

Visit tools.decc.gov.uk

Key Findings

We analyzed Tools.decc.gov.uk page load time and found that the first response time was 687 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

tools.decc.gov.uk performance score

79

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.3 s

75/100

10%

LCP (Largest Contentful Paint)

Value2.7 s

86/100

25%

SI (Speed Index)

Value2.9 s

95/100

10%

TBT (Total Blocking Time)

Value50 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0.661

8/100

15%

TTI (Time to Interactive)

Value2.7 s

97/100

10%

Network Requests Diagram

statistics

687 ms

lux-measurer-db6c8505a6690974922b8578eb1f2208d3073807f98d9a048efe9991f8dfc92d.js

9 ms

rum-loader-a65b10e18ceeba3bd8a2eac507c7f2c513cdc82f35097df903fdea87f1dc2e33.js

9 ms

load-analytics-959a6616e4e4cbf456de3dab3e43e41236317fc56b36e15c33f0e71a7ccaaccb.js

13 ms

application-2f42b388a68e84f223a85cdbd824dbca0f5387c520487652cdc56841df6120ae.css

12 ms

Our browser made a total of 21 requests to load all elements on the main page. We found that all of those requests were addressed to Tools.decc.gov.uk and no external sources were called. The less responsive or slowest element that took the longest time to load (687 ms) relates to the external source Www.gov.uk.

Page Optimization Overview & Recommendations

Page size can be reduced by 95.5 kB (48%)

Content Size

200.2 kB

After Optimization

104.7 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Tools.decc.gov.uk main page is 200.2 kB. This result falls beyond the top 1M of websites and identifies a large and not optimized web page that may take ages to load. 30% of websites need less resources to load. HTML takes 113.4 kB which makes up the majority of the site volume.

HTML Optimization

-82%

Potential reduce by 93.1 kB

  • Original 113.4 kB
  • After minification 106.6 kB
  • After compression 20.3 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. HTML code on this page is well minified. It is highly recommended that content of this web page should be compressed using GZIP, as it can save up to 93.1 kB or 82% of the original size.

Image Optimization

-0%

Potential reduce by 0 B

  • Original 5.8 kB
  • After minification 5.8 kB

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. Tools Decc images are well optimized though.

JavaScript Optimization

-3%

Potential reduce by 1.5 kB

  • Original 45.2 kB
  • After minification 45.2 kB
  • After compression 43.7 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

-3%

Potential reduce by 904 B

  • Original 35.7 kB
  • After minification 35.7 kB
  • After compression 34.8 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. Tools.decc.gov.uk has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 14 (78%)

Requests Now

18

After Optimization

4

  • Images
  • JavaScript
  • CSS

The browser has sent 18 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Tools Decc. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 7 to 1 for JavaScripts and from 9 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

statistics

statistics

687 ms

lux-measurer-db6c8505a6690974922b8578eb1f2208d3073807f98d9a048efe9991f8dfc92d.js

lux-measurer-db6c8505a6690974922b8578eb1f2208d3073807f98d9a048efe9991f8dfc92d.js

9 ms

rum-loader-a65b10e18ceeba3bd8a2eac507c7f2c513cdc82f35097df903fdea87f1dc2e33.js

rum-loader-a65b10e18ceeba3bd8a2eac507c7f2c513cdc82f35097df903fdea87f1dc2e33.js

9 ms

load-analytics-959a6616e4e4cbf456de3dab3e43e41236317fc56b36e15c33f0e71a7ccaaccb.js

load-analytics-959a6616e4e4cbf456de3dab3e43e41236317fc56b36e15c33f0e71a7ccaaccb.js

13 ms

application-2f42b388a68e84f223a85cdbd824dbca0f5387c520487652cdc56841df6120ae.css

application-2f42b388a68e84f223a85cdbd824dbca0f5387c520487652cdc56841df6120ae.css

12 ms

application-39d87a5f22b74dba8a3a75aa03d58511a9c01d0d90965fc0299a18cfb033cf2f.css

application-39d87a5f22b74dba8a3a75aa03d58511a9c01d0d90965fc0299a18cfb033cf2f.css

30 ms

_lead-paragraph-c83cde154c8f08bf02c80de1c05a2d4afbc1f79ef0010fd1e8fb1b14026f05eb.css

_lead-paragraph-c83cde154c8f08bf02c80de1c05a2d4afbc1f79ef0010fd1e8fb1b14026f05eb.css

29 ms

_notice-13ffb2b9048238041e151f4ed892f65b1b4bbe3aa8c4d1c42d0ce2ed8b6f358f.css

_notice-13ffb2b9048238041e151f4ed892f65b1b4bbe3aa8c4d1c42d0ce2ed8b6f358f.css

31 ms

_govspeak-a01b673b071674842d8fcd60d8fc0e81175405deafb13e4aebd45695e4c2e0f0.css

_govspeak-a01b673b071674842d8fcd60d8fc0e81175405deafb13e4aebd45695e4c2e0f0.css

38 ms

_organisation-logo-c12c636b8206ced603e9e35b3f9c02b05dde8000b4bca220357140ff184daf9a.css

_organisation-logo-c12c636b8206ced603e9e35b3f9c02b05dde8000b4bca220357140ff184daf9a.css

36 ms

_contents-list-with-body-839704e862b6a2d4c0b23f3a5c488cbd3e268660be3fcc7e01d9bddb1a8efb3c.css

_contents-list-with-body-839704e862b6a2d4c0b23f3a5c488cbd3e268660be3fcc7e01d9bddb1a8efb3c.css

33 ms

_contents-list-ef86f7de605da9e138e157a15716585567e46ef9a6cb2b80c8fdb86655aa0db9.css

_contents-list-ef86f7de605da9e138e157a15716585567e46ef9a6cb2b80c8fdb86655aa0db9.css

31 ms

_back-to-top-8d10a933dd34f1162faf988b7cf81c36c44ba29948683b0cdb2b654df304c32c.css

_back-to-top-8d10a933dd34f1162faf988b7cf81c36c44ba29948683b0cdb2b654df304c32c.css

31 ms

application-2d30f9edf637cc462134fac30847927fb929ee304a023514b7bd01e9a7013f36.js

application-2d30f9edf637cc462134fac30847927fb929ee304a023514b7bd01e9a7013f36.js

32 ms

es6-components-e08bb63a67e2ca09f2d40d96f6119c9baba57ef81fdd8174decb19610104e2a3.js

es6-components-e08bb63a67e2ca09f2d40d96f6119c9baba57ef81fdd8174decb19610104e2a3.js

32 ms

application-f4560a494b0828bcf5ef1cd4de9d5bb4892538b0da24fd796da472426b70d8b5.js

application-f4560a494b0828bcf5ef1cd4de9d5bb4892538b0da24fd796da472426b70d8b5.js

31 ms

es6-components-09e0512d8bd798d9172c3ba8d222f219b53b3dabfb2f5c27ca32663c8551328e.js

es6-components-09e0512d8bd798d9172c3ba8d222f219b53b3dabfb2f5c27ca32663c8551328e.js

34 ms

org_crest_18px_x2-d759444376a83ad439650d64c8de4158658aa1b5034e5a6080e66ebaa9594b0d.png

org_crest_18px_x2-d759444376a83ad439650d64c8de4158658aa1b5034e5a6080e66ebaa9594b0d.png

4 ms

govuk-crest-87038e62e594b5f83ea40e0fb480fe7a5f41ba0db3917f709dfb39043f19a0f7.png

govuk-crest-87038e62e594b5f83ea40e0fb480fe7a5f41ba0db3917f709dfb39043f19a0f7.png

3 ms

bold-affa96571d-v2-088c8da9d0319b63b23ac19791f37a33ec0d4b61f884ab56123bfd96d8312153.woff

bold-affa96571d-v2-088c8da9d0319b63b23ac19791f37a33ec0d4b61f884ab56123bfd96d8312153.woff

4 ms

light-f591b13f7d-v2-369b1da7f442cafca0e8ac0faf1bb64df8170f9c3c7015da1195c8529df5837e.woff

light-f591b13f7d-v2-369b1da7f442cafca0e8ac0faf1bb64df8170f9c3c7015da1195c8529df5837e.woff

5 ms

Accessibility Review

tools.decc.gov.uk accessibility score

100

Accessibility Issues

Best Practices

tools.decc.gov.uk best practices score

92

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

SEO Factors

tools.decc.gov.uk SEO score

96

Search Engine Optimization Advices

Mobile Friendly

Make sure your pages are mobile friendly so users don’t have to pinch or zoom in order to read the content pages. [Learn more](https://developers.google.com/search/mobile-sites/).

Impact

Issue

High

Document uses legible font sizes

High

Tap targets are not sized appropriately

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 Tools.decc.gov.uk 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 Tools.decc.gov.uk 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

tools.decc.gov.uk

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