Tools & Wizards About Us
scottishgas.co.uk screenshot

Report Summary

  • 16

    Performance

    Renders faster than
    30% of other websites

  • 93

    Accessibility

    Visual factors better than
    that of 80% of websites

  • 92

    Best Practices

    More advanced features
    available than in
    80% of websites

  • 100

    SEO

    Google-friendlier than
    94% of websites

scottishgas.co.uk

Gas and electricity, boilers and energy efficiency - British Gas

Page Load Speed

4 sec in total

First Response

708 ms

Resources Loaded

3 sec

Page Rendered

252 ms

scottishgas.co.uk screenshot

About Website

Click here to check amazing Scottish Gas content for United Kingdom. Otherwise, check out these important facts you probably never knew about scottishgas.co.uk

British Gas is the largest UK energy and home services company. We supply gas and electricity, boilers and boiler cover as well as other home services.

Visit scottishgas.co.uk

Key Findings

We analyzed Scottishgas.co.uk page load time and found that the first response time was 708 ms and then it took 3.3 sec to load all DOM resources and completely render a web page. This is a poor result, as 60% of websites can load faster.

Performance Metrics

scottishgas.co.uk performance score

16

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value6.1 s

3/100

10%

LCP (Largest Contentful Paint)

Value19.1 s

0/100

25%

SI (Speed Index)

Value12.9 s

2/100

10%

TBT (Total Blocking Time)

Value5,470 ms

0/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value37.3 s

0/100

10%

Network Requests Diagram

www.britishgas.co.uk

708 ms

jquery.js

262 ms

nucleus.min.js

924 ms

bundle.js

461 ms

bundle.libs.js

508 ms

Our browser made a total of 12 requests to load all elements on the main page. We found that 0% of them (0 request) were addressed to the original Scottishgas.co.uk, 25% (3 requests) were made to Widget.trustpilot.com and 8% (1 request) were made to Assets.adobedtm.com. The less responsive or slowest element that took the longest time to load (924 ms) relates to the external source Britishgas.co.uk.

Page Optimization Overview & Recommendations

Page size can be reduced by 1.3 MB (71%)

Content Size

1.8 MB

After Optimization

504.6 kB

  • HTML
  • JavaScript

In fact, the total size of Scottishgas.co.uk main page is 1.8 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. 20% of websites need less resources to load. Javascripts take 1.7 MB which makes up the majority of the site volume.

HTML Optimization

-81%

Potential reduce by 91.1 kB

  • Original 113.0 kB
  • After minification 106.4 kB
  • After compression 21.9 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 91.1 kB or 81% of the original size.

JavaScript Optimization

-71%

Potential reduce by 1.2 MB

  • Original 1.7 MB
  • After minification 1.7 MB
  • After compression 482.7 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. It is highly recommended that all JavaScript files should be compressed and minified as it can save up to 1.2 MB or 71% of the original size.

Requests Breakdown

Number of requests can be reduced by 8 (73%)

Requests Now

11

After Optimization

3

  • AJAX
  • Images
  • JavaScript

The browser has sent 11 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Scottish Gas. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 9 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

www.britishgas.co.uk

www.britishgas.co.uk

708 ms

jquery.js

jquery.js

262 ms

nucleus.min.js

nucleus.min.js

924 ms

bundle.js

bundle.js

461 ms

bundle.libs.js

bundle.libs.js

508 ms

launch-EN218421797fef46f6a7f3c42d7c5c18ce.min.js

launch-EN218421797fef46f6a7f3c42d7c5c18ce.min.js

35 ms

tp.widget.bootstrap.min.js

tp.widget.bootstrap.min.js

20 ms

adrum-latest.js

adrum-latest.js

23 ms

components.js

components.js

506 ms

greener-living-overview_hero.svg

greener-living-overview_hero.svg

270 ms

index.html

index.html

5 ms

main.js

main.js

22 ms

Accessibility Review

scottishgas.co.uk accessibility score

93

Accessibility Issues

Names and labels

These are opportunities to improve the semantics of the controls in your application. This may enhance the experience for users of assistive technology, like a screen reader.

Impact

Issue

High

Buttons do not have an accessible name

Best Practices

scottishgas.co.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

General

Impact

Issue

Low

Detected JavaScript libraries

High

Missing source maps for large first-party JavaScript

SEO Factors

scottishgas.co.uk SEO score

100

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

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 Scottishgas.co.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 Scottishgas.co.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

scottishgas.co.uk

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