Tools & Wizards About Us

Report Summary

  • 16

    Performance

    Renders faster than
    30% of other websites

  • 97

    Accessibility

    Visual factors better than
    that of 91% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 98

    SEO

    Google-friendlier than
    92% of websites

bath.ac.uk

University of Bath

Page Load Speed

4.8 sec in total

First Response

357 ms

Resources Loaded

2.4 sec

Page Rendered

2 sec

About Website

Visit bath.ac.uk now to see the best up-to-date Bath content for United Kingdom and also check out these interesting facts you probably never knew about bath.ac.uk

A leading UK university with an international reputation for teaching and research excellence.

Visit bath.ac.uk

Key Findings

We analyzed Bath.ac.uk page load time and found that the first response time was 357 ms and then it took 4.4 sec to load all DOM resources and completely render a web page. This is a poor result, as 70% of websites can load faster.

Performance Metrics

bath.ac.uk performance score

16

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value5.4 s

6/100

10%

LCP (Largest Contentful Paint)

Value16.2 s

0/100

25%

SI (Speed Index)

Value8.6 s

17/100

10%

TBT (Total Blocking Time)

Value1,770 ms

10/100

30%

CLS (Cumulative Layout Shift)

Value0.171

70/100

15%

TTI (Time to Interactive)

Value16.2 s

5/100

10%

Network Requests Diagram

bath.ac.uk

357 ms

www.bath.ac.uk

291 ms

www.bath.ac.uk

392 ms

gtm.js

100 ms

css

57 ms

Our browser made a total of 75 requests to load all elements on the main page. We found that 32% of them (24 requests) were addressed to the original Bath.ac.uk, 23% (17 requests) were made to F.vimeocdn.com and 21% (16 requests) were made to Live.staticflickr.com. The less responsive or slowest element that took the longest time to load (730 ms) belongs to the original domain Bath.ac.uk.

Page Optimization Overview & Recommendations

Page size can be reduced by 131.1 kB (1%)

Content Size

20.3 MB

After Optimization

20.2 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Bath.ac.uk main page is 20.3 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. Only a small number of websites need less resources to load. Images take 19.9 MB which makes up the majority of the site volume.

HTML Optimization

-79%

Potential reduce by 48.8 kB

  • Original 62.2 kB
  • After minification 54.1 kB
  • After compression 13.4 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 8.1 kB, which is 13% 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 48.8 kB or 79% of the original size.

Image Optimization

-0%

Potential reduce by 7.1 kB

  • Original 19.9 MB
  • After minification 19.9 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. Bath images are well optimized though.

JavaScript Optimization

-22%

Potential reduce by 75.0 kB

  • Original 337.1 kB
  • After minification 336.9 kB
  • After compression 262.1 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 75.0 kB or 22% of the original size.

CSS Optimization

-0%

Potential reduce by 199 B

  • Original 44.8 kB
  • After minification 44.8 kB
  • After compression 44.6 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. Bath.ac.uk has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 41 (57%)

Requests Now

72

After Optimization

31

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 72 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Bath. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 33 to 1 for JavaScripts and from 4 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

Accessibility Review

bath.ac.uk accessibility score

97

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

<frame> or <iframe> elements do not have a title

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Heading elements are not in a sequentially-descending order

Best Practices

bath.ac.uk best practices score

75

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

Browser errors were logged to the console

High

Page has valid source maps

High

Issues were logged in the Issues panel in Chrome Devtools

SEO Factors

bath.ac.uk SEO score

98

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 Bath.ac.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 Bath.ac.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 Bath. 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: