Report Summary

  • 47

    Performance

    Renders faster than
    66% of other websites

  • 98

    Accessibility

    Visual factors better than
    that of 94% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 100

    SEO

    Google-friendlier than
    95% of websites

bristol.gov.uk

Bristol City Council

Page Load Speed

30.3 sec in total

First Response

403 ms

Resources Loaded

18 sec

Page Rendered

11.9 sec

bristol.gov.uk screenshot

About Website

Click here to check amazing Bristol content for United Kingdom. Otherwise, check out these important facts you probably never knew about bristol.gov.uk

About Bristol City Council services, including council tax, bins and recycling and schools. Postal address: City Hall, PO Box 3399, Bristol BS1 9NE

Visit bristol.gov.uk

Key Findings

We analyzed Bristol.gov.uk page load time and found that the first response time was 403 ms and then it took 29.9 sec to load all DOM resources and completely render a web page. This is an excellent result, as only a small number of websites can load faster.

Performance Metrics

bristol.gov.uk performance score

47

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value5.1 s

9/100

10%

LCP (Largest Contentful Paint)

Value12.8 s

0/100

25%

SI (Speed Index)

Value7.3 s

29/100

10%

TBT (Total Blocking Time)

Value230 ms

87/100

30%

CLS (Cumulative Layout Shift)

Value0.002

100/100

15%

TTI (Time to Interactive)

Value10.8 s

22/100

10%

Network Requests Diagram

www.bristol.gov.uk

403 ms

www.bristol.gov.uk

1484 ms

jquery.min.js

1293 ms

jquery.uniform.min.js

1591 ms

modernizr.min.js

1164 ms

Our browser made a total of 45 requests to load all elements on the main page. We found that 89% of them (40 requests) were addressed to the original Bristol.gov.uk, 7% (3 requests) were made to Cdnjs.cloudflare.com and 2% (1 request) were made to Maxcdn.bootstrapcdn.com. The less responsive or slowest element that took the longest time to load (3.3 sec) belongs to the original domain Bristol.gov.uk.

Page Optimization Overview & Recommendations

Page size can be reduced by 2.1 MB (58%)

Content Size

3.7 MB

After Optimization

1.6 MB

In fact, the total size of Bristol.gov.uk main page is 3.7 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. CSS take 1.4 MB which makes up the majority of the site volume.

HTML Optimization

-88%

Potential reduce by 85.2 kB

  • Original 96.5 kB
  • After minification 77.5 kB
  • After compression 11.3 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 19.0 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 85.2 kB or 88% of the original size.

Image Optimization

-2%

Potential reduce by 16.5 kB

  • Original 992.0 kB
  • After minification 975.5 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. Bristol images are well optimized though.

JavaScript Optimization

-69%

Potential reduce by 804.8 kB

  • Original 1.2 MB
  • After minification 1.2 MB
  • After compression 368.6 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 804.8 kB or 69% of the original size.

CSS Optimization

-86%

Potential reduce by 1.2 MB

  • Original 1.4 MB
  • After minification 1.4 MB
  • After compression 209.8 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. Bristol.gov.uk needs all CSS files to be minified and compressed as it can save up to 1.2 MB or 86% of the original size.

Requests Breakdown

Number of requests can be reduced by 26 (72%)

Requests Now

36

After Optimization

10

The browser has sent 36 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Bristol. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 14 to 1 for JavaScripts and from 9 to 1 for CSS and as a result speed up the page load time.

Accessibility Review

bristol.gov.uk accessibility score

98

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

Links do not have a discernible name

Best Practices

bristol.gov.uk best practices score

67

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

High

Includes front-end JavaScript libraries with known security vulnerabilities

Low

Ensure CSP is effective against XSS attacks

User Experience

Impact

Issue

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Missing source maps for large first-party JavaScript

SEO Factors

bristol.gov.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 Bristol.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 Bristol.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

Open Graph description is not detected on the main page of Bristol. 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: