Report Summary

  • 58

    Performance

    Renders faster than
    74% of other websites

  • 94

    Accessibility

    Visual factors better than
    that of 84% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    36% of websites

  • 91

    SEO

    Google-friendlier than
    71% of websites

london-boxoffice.com

Musicals London - londonboxoffice.no

Page Load Speed

7.3 sec in total

First Response

2.6 sec

Resources Loaded

4.3 sec

Page Rendered

373 ms

london-boxoffice.com screenshot

About Website

Welcome to london-boxoffice.com homepage info - get ready to check London Boxoffice best content right away, or after learning these important things about london-boxoffice.com

Kjøp teaterbilletter i London direkte med London Box Office og spar! Vi har billetter for de viktigste av musikaler og skuespill: The Lion King, We Will Rock You, Shrek The Musical, Thriller - Live, W...

Visit london-boxoffice.com

Key Findings

We analyzed London-boxoffice.com page load time and found that the first response time was 2.6 sec and then it took 4.7 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

london-boxoffice.com performance score

58

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.1 s

47/100

10%

LCP (Largest Contentful Paint)

Value6.4 s

9/100

25%

SI (Speed Index)

Value7.0 s

32/100

10%

TBT (Total Blocking Time)

Value60 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0.135

80/100

15%

TTI (Time to Interactive)

Value6.5 s

58/100

10%

Network Requests Diagram

www.london-boxoffice.com

2595 ms

lboResponsive_1.16.2_no.css

208 ms

logo.svg

244 ms

facebook.png

245 ms

google.png

246 ms

Our browser made a total of 48 requests to load all elements on the main page. We found that 85% of them (41 requests) were addressed to the original London-boxoffice.com, 4% (2 requests) were made to Google-analytics.com and 4% (2 requests) were made to Apis.google.com. The less responsive or slowest element that took the longest time to load (2.6 sec) belongs to the original domain London-boxoffice.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 442.2 kB (33%)

Content Size

1.4 MB

After Optimization

916.1 kB

In fact, the total size of London-boxoffice.com main page is 1.4 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. 35% of websites need less resources to load. Images take 806.0 kB which makes up the majority of the site volume.

HTML Optimization

-86%

Potential reduce by 84.4 kB

  • Original 97.7 kB
  • After minification 80.7 kB
  • After compression 13.3 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 17.0 kB, which is 17% 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 84.4 kB or 86% of the original size.

Image Optimization

-4%

Potential reduce by 31.9 kB

  • Original 806.0 kB
  • After minification 774.1 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. London Boxoffice images are well optimized though.

JavaScript Optimization

-67%

Potential reduce by 212.4 kB

  • Original 315.6 kB
  • After minification 315.3 kB
  • After compression 103.2 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 212.4 kB or 67% of the original size.

CSS Optimization

-82%

Potential reduce by 113.5 kB

  • Original 138.9 kB
  • After minification 136.6 kB
  • After compression 25.4 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. London-boxoffice.com needs all CSS files to be minified and compressed as it can save up to 113.5 kB or 82% of the original size.

Requests Breakdown

Number of requests can be reduced by 11 (24%)

Requests Now

46

After Optimization

35

The browser has sent 46 CSS, Javascripts, AJAX and image requests in order to completely render the main page of London Boxoffice. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 6 to 1 for JavaScripts and as a result speed up the page load time.

Accessibility Review

london-boxoffice.com accessibility score

94

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.

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Heading elements are not in a sequentially-descending order

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

london-boxoffice.com 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

london-boxoffice.com SEO score

91

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

Links do not have descriptive text

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

    NO

  • Language Claimed

    NO

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise London-boxoffice.com can be misinterpreted by Google and other search engines. Our service has detected that Norwegian is used on the page, and it matches the claimed language. Our system also found out that London-boxoffice.com 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 London Boxoffice. 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: