Report Summary

  • 24

    Performance

    Renders faster than
    44% of other websites

  • 98

    Accessibility

    Visual factors better than
    that of 96% of websites

  • 92

    Best Practices

    More advanced features
    available than in
    86% of websites

  • 83

    SEO

    Google-friendlier than
    54% of websites

aber.ac.uk

Aberystwyth University: Best in the UK for student experience

Page Load Speed

2.3 sec in total

First Response

282 ms

Resources Loaded

1.8 sec

Page Rendered

223 ms

aber.ac.uk screenshot

About Website

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

Awarded University of the Year for Teaching Quality, Aberystwyth University delivers cutting-edge research and teaching for undergraduate and postgraduate degrees.

Visit aber.ac.uk

Key Findings

We analyzed Aber.ac.uk page load time and found that the first response time was 282 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 30% of websites can load faster.

Performance Metrics

aber.ac.uk performance score

24

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.7 s

61/100

10%

LCP (Largest Contentful Paint)

Value7.6 s

3/100

25%

SI (Speed Index)

Value7.2 s

30/100

10%

TBT (Total Blocking Time)

Value2,390 ms

5/100

30%

CLS (Cumulative Layout Shift)

Value0.17

70/100

15%

TTI (Time to Interactive)

Value11.2 s

20/100

10%

Network Requests Diagram

aber.ac.uk

282 ms

284 ms

249 ms

css

23 ms

base-v1.css

355 ms

Our browser made a total of 35 requests to load all elements on the main page. We found that 86% of them (30 requests) were addressed to the original Aber.ac.uk, 9% (3 requests) were made to Stats.g.doubleclick.net and 3% (1 request) were made to Fonts.googleapis.com. The less responsive or slowest element that took the longest time to load (537 ms) belongs to the original domain Aber.ac.uk.

Page Optimization Overview & Recommendations

Page size can be reduced by 311.1 kB (25%)

Content Size

1.3 MB

After Optimization

946.8 kB

In fact, the total size of Aber.ac.uk main page is 1.3 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. 40% of websites need less resources to load. Images take 856.3 kB which makes up the majority of the site volume.

HTML Optimization

-76%

Potential reduce by 19.2 kB

  • Original 25.2 kB
  • After minification 22.5 kB
  • After compression 6.0 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. This page needs HTML code to be minified as it can gain 2.8 kB, which is 11% 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 19.2 kB or 76% of the original size.

Image Optimization

-2%

Potential reduce by 19.3 kB

  • Original 856.3 kB
  • After minification 837.0 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. Aber images are well optimized though.

JavaScript Optimization

-58%

Potential reduce by 94.5 kB

  • Original 162.5 kB
  • After minification 162.5 kB
  • After compression 68.0 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 94.5 kB or 58% of the original size.

CSS Optimization

-83%

Potential reduce by 178.1 kB

  • Original 214.0 kB
  • After minification 209.6 kB
  • After compression 35.9 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. Aber.ac.uk needs all CSS files to be minified and compressed as it can save up to 178.1 kB or 83% of the original size.

Requests Breakdown

Number of requests can be reduced by 11 (34%)

Requests Now

32

After Optimization

21

The browser has sent 32 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Aber. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 5 to 1 for JavaScripts and from 8 to 1 for CSS and as a result speed up the page load time.

Accessibility Review

aber.ac.uk accessibility score

98

Accessibility Issues

Contrast

These are opportunities to improve the legibility of your content.

Impact

Issue

High

Background and foreground colors do not have a sufficient contrast ratio.

Best Practices

aber.ac.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

SEO Factors

aber.ac.uk SEO score

83

Search Engine Optimization Advices

Crawling and Indexing

To appear in search results, crawlers need access to your app.

Impact

Issue

High

Links are not crawlable

High

robots.txt is not valid

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 Aber.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 Aber.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 Aber. 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: