Tools & Wizards About Us
adelphi.londontheatres.co.uk screenshot

Report Summary

  • 5

    Performance

    Renders faster than
    21% of other websites

  • 87

    Accessibility

    Visual factors better than
    that of 67% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    56% of websites

  • 82

    SEO

    Google-friendlier than
    44% of websites

adelphi.londontheatres.co.uk

Adelphi Theatre London - Back to the Future the Musical tickets

Page Load Speed

4.4 sec in total

First Response

184 ms

Resources Loaded

4 sec

Page Rendered

277 ms

adelphi.londontheatres.co.uk screenshot

About Website

Visit adelphi.londontheatres.co.uk now to see the best up-to-date Adelphi London Theatre S content for United Kingdom and also check out these interesting facts you probably never knew about adelphi.londontheatres.co.uk

Back to the Future the Musical brings the classic 80's film to life on stage in spectacular fashion! Tickets, map and history.

Visit adelphi.londontheatres.co.uk

Key Findings

We analyzed Adelphi.londontheatres.co.uk page load time and found that the first response time was 184 ms and then it took 4.2 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

adelphi.londontheatres.co.uk performance score

5

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value7.9 s

0/100

10%

LCP (Largest Contentful Paint)

Value16.8 s

0/100

25%

SI (Speed Index)

Value13.8 s

1/100

10%

TBT (Total Blocking Time)

Value19,810 ms

0/100

30%

CLS (Cumulative Layout Shift)

Value0.361

30/100

15%

TTI (Time to Interactive)

Value34.4 s

0/100

10%

Network Requests Diagram

adelphi.londontheatres.co.uk

184 ms

1731 ms

css

26 ms

jquery-ui.min.css

19 ms

leaflet.css

23 ms

Our browser made a total of 51 requests to load all elements on the main page. We found that 2% of them (1 request) were addressed to the original Adelphi.londontheatres.co.uk, 45% (23 requests) were made to Londontheatres.co.uk and 12% (6 requests) were made to Fonts.gstatic.com. The less responsive or slowest element that took the longest time to load (1.7 sec) relates to the external source Londontheatres.co.uk.

Page Optimization Overview & Recommendations

Page size can be reduced by 1.1 MB (69%)

Content Size

1.6 MB

After Optimization

510.7 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Adelphi.londontheatres.co.uk main page is 1.6 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. 70% of websites need less resources to load. Javascripts take 1.1 MB which makes up the majority of the site volume.

HTML Optimization

-74%

Potential reduce by 67.3 kB

  • Original 90.8 kB
  • After minification 88.2 kB
  • After compression 23.5 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 67.3 kB or 74% of the original size.

Image Optimization

-23%

Potential reduce by 34.9 kB

  • Original 151.6 kB
  • After minification 116.7 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, Adelphi London Theatre S needs image optimization as it can save up to 34.9 kB or 23% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-71%

Potential reduce by 756.0 kB

  • Original 1.1 MB
  • After minification 1.0 MB
  • After compression 314.6 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 756.0 kB or 71% of the original size.

CSS Optimization

-83%

Potential reduce by 270.6 kB

  • Original 326.5 kB
  • After minification 313.0 kB
  • After compression 56.0 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. Adelphi.londontheatres.co.uk needs all CSS files to be minified and compressed as it can save up to 270.6 kB or 83% of the original size.

Requests Breakdown

Number of requests can be reduced by 29 (69%)

Requests Now

42

After Optimization

13

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 42 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Adelphi London Theatre S. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 24 to 1 for JavaScripts and from 7 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

adelphi.londontheatres.co.uk

adelphi.londontheatres.co.uk

184 ms

1731 ms

css

css

26 ms

jquery-ui.min.css

jquery-ui.min.css

19 ms

leaflet.css

leaflet.css

23 ms

icon-fonts.css

icon-fonts.css

171 ms

secondary-style.css

secondary-style.css

184 ms

jquery.min.js

jquery.min.js

46 ms

jquery-ui.min.js

jquery-ui.min.js

55 ms

jquery.placeholder.min.js

jquery.placeholder.min.js

230 ms

jquery.ba-hashchange.js

jquery.ba-hashchange.js

231 ms

leaflet.js

leaflet.js

372 ms

L.BuildingsLayer.js

L.BuildingsLayer.js

239 ms

osm2geo.js

osm2geo.js

258 ms

leaflet.awesome-markers.min.js

leaflet.awesome-markers.min.js

276 ms

data.js

data.js

455 ms

londontheatres.js

londontheatres.js

282 ms

storyjs-embed.js

storyjs-embed.js

229 ms

kinky-boots.css

kinky-boots.css

838 ms

addthis_widget.js

addthis_widget.js

10 ms

wp-emoji-release.min.js

wp-emoji-release.min.js

308 ms

comment-reply.min.js

comment-reply.min.js

322 ms

bj-lazy-load.min.js

bj-lazy-load.min.js

340 ms

wp-embed.min.js

wp-embed.min.js

388 ms

G9nyoXvUDkY

G9nyoXvUDkY

112 ms

www-embed-player-vflfNyN_r.css

www-embed-player-vflfNyN_r.css

32 ms

www-embed-player.js

www-embed-player.js

59 ms

base.js

base.js

96 ms

fBnyGA8Aionz5086-mElmoOSPUuyQ1M9Un647_EjucU.js

fBnyGA8Aionz5086-mElmoOSPUuyQ1M9Un647_EjucU.js

327 ms

ad_status.js

ad_status.js

335 ms

2UX7WLTfW3W8TclTUvlFyQ.woff

2UX7WLTfW3W8TclTUvlFyQ.woff

343 ms

RxZJdnzeo3R5zSexge8UUT8E0i7KZn-EPnyo3HZu7kw.woff

RxZJdnzeo3R5zSexge8UUT8E0i7KZn-EPnyo3HZu7kw.woff

343 ms

js

js

219 ms

300lo.json

300lo.json

115 ms

gplus-32.png

gplus-32.png

115 ms

counter.5524cceca805eb4b9b2b.js

counter.5524cceca805eb4b9b2b.js

29 ms

YDAoLskQQ5MOAgvHUQCcLcvyhSUCWNe0YoQkk3OBepg.woff

YDAoLskQQ5MOAgvHUQCcLcvyhSUCWNe0YoQkk3OBepg.woff

74 ms

We_iSDqttE3etzfdfhuPRYeadfj-6pacmJkCVgsbjK4.woff

We_iSDqttE3etzfdfhuPRYeadfj-6pacmJkCVgsbjK4.woff

77 ms

We_iSDqttE3etzfdfhuPRem2G_Og_te2ADNUqKDN50k.woff

We_iSDqttE3etzfdfhuPRem2G_Og_te2ADNUqKDN50k.woff

89 ms

We_iSDqttE3etzfdfhuPRWkfAKtHZKhf5n1BtpfNX_k.woff

We_iSDqttE3etzfdfhuPRWkfAKtHZKhf5n1BtpfNX_k.woff

103 ms

entypo.woff

entypo.woff

514 ms

sh.8e5f85691f9aaa082472a194.html

sh.8e5f85691f9aaa082472a194.html

41 ms

shares.json

shares.json

87 ms

in.php

in.php

128 ms

london-theatres-105.png

london-theatres-105.png

286 ms

source-whatsonstage.png

source-whatsonstage.png

92 ms

source-thestage.png

source-thestage.png

86 ms

source-eveningstandard.png

source-eveningstandard.png

94 ms

critic-star-5.0.png

critic-star-5.0.png

94 ms

critic-star-4.0.png

critic-star-4.0.png

95 ms

kinky-boots.770x400.jpg

kinky-boots.770x400.jpg

418 ms

Accessibility Review

adelphi.londontheatres.co.uk accessibility score

87

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

High

Image elements do not have [alt] attributes

Best Practices

adelphi.londontheatres.co.uk 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

High

Page has valid source maps

SEO Factors

adelphi.londontheatres.co.uk SEO score

82

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

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

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 Adelphi.londontheatres.co.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 Adelphi.londontheatres.co.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

adelphi.londontheatres.co.uk

Open Graph data is detected on the main page of Adelphi London Theatre S. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: