Report Summary

  • 60

    Performance

    Renders faster than
    75% of other websites

  • 53

    Accessibility

    Visual factors better than
    that of 22% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    56% of websites

  • 93

    SEO

    Google-friendlier than
    84% of websites

olympia.london

London Event & Exhibition Venue | Olympia Events

Page Load Speed

10.9 sec in total

First Response

1.5 sec

Resources Loaded

8.4 sec

Page Rendered

961 ms

olympia.london screenshot

About Website

Welcome to olympia.london homepage info - get ready to check Olympia best content for Ukraine right away, or after learning these important things about olympia.london

Olympia Events has been an iconic London venue for nearly 140 years inspiring visitors with an endless variety of events from breath-taking consumer shows and thrilling sporting and music events, to l...

Visit olympia.london

Key Findings

We analyzed Olympia.london page load time and found that the first response time was 1.5 sec and then it took 9.4 sec to load all DOM resources and completely render a web page. This is a poor result, as 85% of websites can load faster.

Performance Metrics

olympia.london performance score

60

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.4 s

70/100

10%

LCP (Largest Contentful Paint)

Value4.3 s

42/100

25%

SI (Speed Index)

Value6.5 s

39/100

10%

TBT (Total Blocking Time)

Value410 ms

67/100

30%

CLS (Cumulative Layout Shift)

Value0.072

96/100

15%

TTI (Time to Interactive)

Value8.3 s

39/100

10%

Network Requests Diagram

olympia.london

1512 ms

css_xE-rWrJf-fncB6ztZfd2huxqgxu4WO-qwma6Xer30m4.css

159 ms

css_5YbdHr5Ydl82DxADBrSxdn1QRG2JoYejHCFqvNm0E3w.css

160 ms

css_ilY3zT4shICj-pXLVK8CwPYs9JUkiNR3AQN6hRSGtww.css

169 ms

css_vN4lvunBOvpIq14vThPRD4PjuRwYMuP1_HBZNl-Eg1w.css

162 ms

Our browser made a total of 139 requests to load all elements on the main page. We found that 94% of them (131 requests) were addressed to the original Olympia.london, 1% (2 requests) were made to Google-analytics.com and 1% (2 requests) were made to Google.com. The less responsive or slowest element that took the longest time to load (3.6 sec) belongs to the original domain Olympia.london.

Page Optimization Overview & Recommendations

Page size can be reduced by 1.1 MB (7%)

Content Size

14.7 MB

After Optimization

13.6 MB

In fact, the total size of Olympia.london main page is 14.7 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. 45% of websites need less resources to load. Images take 13.9 MB which makes up the majority of the site volume.

HTML Optimization

-86%

Potential reduce by 138.7 kB

  • Original 161.8 kB
  • After minification 146.5 kB
  • After compression 23.1 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 138.7 kB or 86% of the original size.

Image Optimization

-3%

Potential reduce by 472.4 kB

  • Original 13.9 MB
  • After minification 13.4 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. Olympia images are well optimized though.

JavaScript Optimization

-68%

Potential reduce by 312.4 kB

  • Original 458.6 kB
  • After minification 372.3 kB
  • After compression 146.1 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 312.4 kB or 68% of the original size.

CSS Optimization

-83%

Potential reduce by 170.5 kB

  • Original 205.4 kB
  • After minification 202.6 kB
  • After compression 34.9 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. Olympia.london needs all CSS files to be minified and compressed as it can save up to 170.5 kB or 83% of the original size.

Requests Breakdown

Number of requests can be reduced by 36 (27%)

Requests Now

135

After Optimization

99

The browser has sent 135 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Olympia. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 32 to 1 for JavaScripts and from 6 to 1 for CSS and as a result speed up the page load time.

Accessibility Review

olympia.london accessibility score

53

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

High

Image elements do not have [alt] attributes

High

Links do not have a discernible name

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.

Internationalization and localization

These are opportunities to improve the interpretation of your content by users in different locales.

Impact

Issue

High

<html> element does not have a [lang] attribute

Best practices

These items highlight common accessibility best practices.

Impact

Issue

High

[user-scalable="no"] is used in the <meta name="viewport"> element or the [maximum-scale] attribute is less than 5.

Best Practices

olympia.london best practices score

83

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

General

Impact

Issue

Low

Detected JavaScript libraries

SEO Factors

olympia.london SEO score

93

Search Engine Optimization Advices

Content Best Practices

Format your HTML in a way that enables crawlers to better understand your app’s content.

Impact

Issue

High

Image elements do not have [alt] attributes

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 Olympia.london 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 Olympia.london 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 Olympia. 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: