Tools & Wizards About Us

Report Summary

  • 29

    Performance

    Renders faster than
    49% of other websites

  • 100

    Accessibility

    Visual factors better than
    that of 97% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 84

    SEO

    Google-friendlier than
    52% of websites

events.ucl.ac.uk

Events | UCL Events - UCL – University College London

Page Load Speed

4.4 sec in total

First Response

409 ms

Resources Loaded

3.7 sec

Page Rendered

308 ms

About Website

Click here to check amazing Events UCL content for United Kingdom. Otherwise, check out these important facts you probably never knew about events.ucl.ac.uk

Welcome to the UCL events calendar - talks, seminars, workshops, lectures, performances and exhibitions are open to everyone. There are both in-person and virtual events available. Find out more and b...

Visit events.ucl.ac.uk

Key Findings

We analyzed Events.ucl.ac.uk page load time and found that the first response time was 409 ms and then it took 4 sec to load all DOM resources and completely render a web page. This is a poor result, as 65% of websites can load faster.

Performance Metrics

events.ucl.ac.uk performance score

29

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.5 s

15/100

10%

LCP (Largest Contentful Paint)

Value5.3 s

21/100

25%

SI (Speed Index)

Value6.5 s

39/100

10%

TBT (Total Blocking Time)

Value1,860 ms

9/100

30%

CLS (Cumulative Layout Shift)

Value0.089

92/100

15%

TTI (Time to Interactive)

Value12.5 s

14/100

10%

Network Requests Diagram

events.ucl.ac.uk

409 ms

events

392 ms

events

579 ms

font-awesome.min.css

72 ms

screen.min.css

68 ms

Our browser made a total of 91 requests to load all elements on the main page. We found that 1% of them (1 request) were addressed to the original Events.ucl.ac.uk, 51% (46 requests) were made to Ucl.ac.uk and 38% (35 requests) were made to Cdn.ucl.ac.uk. The less responsive or slowest element that took the longest time to load (1 sec) relates to the external source Cdn.ucl.ac.uk.

Page Optimization Overview & Recommendations

Page size can be reduced by 346.2 kB (24%)

Content Size

1.5 MB

After Optimization

1.1 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Events.ucl.ac.uk 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

-86%

Potential reduce by 139.2 kB

  • Original 162.4 kB
  • After minification 160.6 kB
  • After compression 23.2 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 139.2 kB or 86% of the original size.

Image Optimization

-19%

Potential reduce by 204.6 kB

  • Original 1.1 MB
  • After minification 883.9 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. Obviously, Events UCL needs image optimization as it can save up to 204.6 kB or 19% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-1%

Potential reduce by 2.4 kB

  • Original 181.8 kB
  • After minification 181.7 kB
  • After compression 179.4 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

-0%

Potential reduce by 89 B

  • Original 31.0 kB
  • After minification 31.0 kB
  • After compression 31.0 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. Events.ucl.ac.uk has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 64 (74%)

Requests Now

87

After Optimization

23

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 87 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Events UCL. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 36 to 1 for JavaScripts and from 22 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

Accessibility Review

events.ucl.ac.uk accessibility score

100

Accessibility Issues

Best Practices

events.ucl.ac.uk best practices score

75

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

SEO Factors

events.ucl.ac.uk SEO score

84

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

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 Events.ucl.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 Events.ucl.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 data is detected on the main page of Events UCL. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: