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british-energy.com screenshot

Report Summary

  • 57

    Performance

    Renders faster than
    73% of other websites

  • 98

    Accessibility

    Visual factors better than
    that of 94% of websites

  • 92

    Best Practices

    More advanced features
    available than in
    80% of websites

  • 93

    SEO

    Google-friendlier than
    83% of websites

british-energy.com

Electricity & Gas | UK Energy Supplier for Home & Business | EDF

Page Load Speed

2.1 sec in total

First Response

32 ms

Resources Loaded

1.1 sec

Page Rendered

879 ms

british-energy.com screenshot

About Website

Welcome to british-energy.com homepage info - get ready to check British Energy best content right away, or after learning these important things about british-energy.com

EDF is an energy provider, supplying electricity and gas to homes and businesses in the UK. Compare our energy prices, get a quote and switch. Our electricity is zero carbon.

Visit british-energy.com

Key Findings

We analyzed British-energy.com page load time and found that the first response time was 32 ms and then it took 2 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

british-energy.com performance score

57

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.5 s

66/100

10%

LCP (Largest Contentful Paint)

Value2.9 s

80/100

25%

SI (Speed Index)

Value4.7 s

69/100

10%

TBT (Total Blocking Time)

Value1,300 ms

18/100

30%

CLS (Cumulative Layout Shift)

Value0.002

100/100

15%

TTI (Time to Interactive)

Value9.6 s

29/100

10%

Network Requests Diagram

www.edfenergy.com

32 ms

www.edfenergy.com

379 ms

css_UGi8w9Re0c_OBdUaRvjhkpKSRxh5MAoxlv3ZMNtQNyE.css

224 ms

css_-nv8DmH4FdRvVYCayO2DHMF4JQxcndNafLmElkCFkWI.css

293 ms

edf-colour.svg

216 ms

Our browser made a total of 66 requests to load all elements on the main page. We found that all of those requests were addressed to British-energy.com and no external sources were called. The less responsive or slowest element that took the longest time to load (663 ms) relates to the external source Edfenergy.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 275.1 kB (18%)

Content Size

1.5 MB

After Optimization

1.2 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of British-energy.com main page is 1.5 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. 55% of websites need less resources to load. Images take 1.1 MB which makes up the majority of the site volume.

HTML Optimization

-84%

Potential reduce by 249.1 kB

  • Original 298.1 kB
  • After minification 285.1 kB
  • After compression 49.0 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 249.1 kB or 84% of the original size.

Image Optimization

-0%

Potential reduce by 3.3 kB

  • Original 1.1 MB
  • After minification 1.1 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. British Energy images are well optimized though.

JavaScript Optimization

-0%

Potential reduce by 0 B

  • Original 57.8 kB
  • After minification 57.8 kB
  • After compression 57.8 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

-87%

Potential reduce by 22.8 kB

  • Original 26.1 kB
  • After minification 3.4 kB
  • After compression 3.3 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. British-energy.com needs all CSS files to be minified and compressed as it can save up to 22.8 kB or 87% of the original size.

Requests Breakdown

Number of requests can be reduced by 5 (8%)

Requests Now

64

After Optimization

59

  • Images
  • JavaScript
  • CSS

The browser has sent 64 CSS, Javascripts, AJAX and image requests in order to completely render the main page of British Energy. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests and as a result speed up the page load time.

Network Requests Diagram

www.edfenergy.com

www.edfenergy.com

32 ms

www.edfenergy.com

www.edfenergy.com

379 ms

css_UGi8w9Re0c_OBdUaRvjhkpKSRxh5MAoxlv3ZMNtQNyE.css

css_UGi8w9Re0c_OBdUaRvjhkpKSRxh5MAoxlv3ZMNtQNyE.css

224 ms

css_-nv8DmH4FdRvVYCayO2DHMF4JQxcndNafLmElkCFkWI.css

css_-nv8DmH4FdRvVYCayO2DHMF4JQxcndNafLmElkCFkWI.css

293 ms

edf-colour.svg

edf-colour.svg

216 ms

Home_Nav_%20Heat_1.png

Home_Nav_%20Heat_1.png

10 ms

Home_Nav_Heat_2.png

Home_Nav_Heat_2.png

13 ms

Home_Nav_Heat_3.png

Home_Nav_Heat_3.png

13 ms

Home_Nave_Heat_4.png

Home_Nave_Heat_4.png

16 ms

Home_Solar_Nav_1.png

Home_Solar_Nav_1.png

17 ms

Home_Solar_Nav_4.png

Home_Solar_Nav_4.png

21 ms

Home_Solar_Nav_3.png

Home_Solar_Nav_3.png

20 ms

Home_Nav_Smart%20_1.png

Home_Nav_Smart%20_1.png

22 ms

Home_Nav_Smart_2.png

Home_Nav_Smart_2.png

23 ms

Home_Nav_Smart_3.png

Home_Nav_Smart_3.png

25 ms

Home_EV_Nav_1.png

Home_EV_Nav_1.png

26 ms

Home_EV_Nav_3.png

Home_EV_Nav_3.png

29 ms

Home_EV_Nav_2_0.png

Home_EV_Nav_2_0.png

30 ms

SME_quote_Nav_1.png

SME_quote_Nav_1.png

31 ms

SME_tariff_Nav_1.png

SME_tariff_Nav_1.png

33 ms

Home_Quote_Nav_1.png

Home_Quote_Nav_1.png

34 ms

SME_quote_Nav_3.png

SME_quote_Nav_3.png

9 ms

SME_MyAccount_Nav_3.png

SME_MyAccount_Nav_3.png

10 ms

SME_MyAccount_Nav_4.png

SME_MyAccount_Nav_4.png

11 ms

SME_tariff_Nav_2.png

SME_tariff_Nav_2.png

11 ms

SME_EV_Nav_1.png

SME_EV_Nav_1.png

12 ms

SME_EV_Nav2.png

SME_EV_Nav2.png

12 ms

SME_EV_Nav_2.png

SME_EV_Nav_2.png

13 ms

SME_EV_Nav_3.png

SME_EV_Nav_3.png

14 ms

About_us_power_Nav_1.png

About_us_power_Nav_1.png

15 ms

About_us_power_Nav_2.png

About_us_power_Nav_2.png

15 ms

About_us_power_Nav_3.png

About_us_power_Nav_3.png

16 ms

43351_007%202.png

43351_007%202.png

15 ms

Nav_1.png

Nav_1.png

16 ms

Nav_4.png

Nav_4.png

17 ms

About-us_careers_Nav_3.png

About-us_careers_Nav_3.png

18 ms

About_us_careers_Nav_3.png

About_us_careers_Nav_3.png

19 ms

About_us_HPC_Nav_1.png

About_us_HPC_Nav_1.png

20 ms

About_us_HPC_Nav_2.png

About_us_HPC_Nav_2.png

21 ms

About_us_HPC_Nav_5.png

About_us_HPC_Nav_5.png

23 ms

js_qUAtAT6_eGntGtTKeEHVNkEJCoApy9ZLNP_aW_MKh1Q.js

js_qUAtAT6_eGntGtTKeEHVNkEJCoApy9ZLNP_aW_MKh1Q.js

388 ms

Company.png

Company.png

279 ms

Wind.png

Wind.png

280 ms

Thumb.png

Thumb.png

363 ms

testimonial.svg

testimonial.svg

360 ms

tp-stars-5.svg

tp-stars-5.svg

297 ms

heat_pump_customer.jpg

heat_pump_customer.jpg

281 ms

edf291121c10203_heat_royalty_free.jpg

edf291121c10203_heat_royalty_free.jpg

279 ms

header-solar-roof-full-file.jpg

header-solar-roof-full-file.jpg

281 ms

smart%20meter%20blog.jpg

smart%20meter%20blog.jpg

281 ms

vauxhall_corsa_ev_optimised.jpg

vauxhall_corsa_ev_optimised.jpg

282 ms

Family%20on%20sofa.jpg

Family%20on%20sofa.jpg

282 ms

EDF_ORANGE_RGB_1b.jpg

EDF_ORANGE_RGB_1b.jpg

283 ms

handshake_icon_0.jpg

handshake_icon_0.jpg

284 ms

edf_orange_rgb_80b.jpg

edf_orange_rgb_80b.jpg

282 ms

facebook-white.svg

facebook-white.svg

456 ms

x-white.svg

x-white.svg

457 ms

linkedin-white.svg

linkedin-white.svg

503 ms

youtube-white.svg

youtube-white.svg

565 ms

instagram-white.svg

instagram-white.svg

566 ms

apple-app-badge.svg

apple-app-badge.svg

456 ms

play-app-badge.svg

play-app-badge.svg

663 ms

magglass-orange-icon.svg

magglass-orange-icon.svg

420 ms

magglass-white-icon.svg

magglass-white-icon.svg

423 ms

account-icon.svg

account-icon.svg

331 ms

vauxhall_corsa_ev_optimised.jpg

vauxhall_corsa_ev_optimised.jpg

324 ms

Accessibility Review

british-energy.com accessibility score

98

Accessibility Issues

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Some elements have a [tabindex] value greater than 0

Best Practices

british-energy.com 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

General

Impact

Issue

Low

Detected JavaScript libraries

SEO Factors

british-energy.com SEO score

93

Search Engine Optimization Advices

Content Best Practices

Format your HTML in a way that enables crawlers to better understand your app’s content.

Impact

Issue

High

Links do not have descriptive text

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

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 British-energy.com 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 British-energy.com 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

british-energy.com

Open Graph description is not detected on the main page of British Energy. Lack of Open Graph description can be counter-productive for their social media presence, as such a description allows converting a website homepage (or other pages) into good-looking, rich and well-structured posts, when it is being shared on Facebook and other social media. For example, adding the following code snippet into HTML <head> tag will help to represent this web page correctly in social networks: