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greenroom.nationaltheatre.org.uk screenshot

Report Summary

  • 17

    Performance

    Renders faster than
    32% of other websites

  • 98

    Accessibility

    Visual factors better than
    that of 94% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 88

    SEO

    Google-friendlier than
    65% of websites

greenroom.nationaltheatre.org.uk

Bars & restaurants | National Theatre

Page Load Speed

6.5 sec in total

First Response

14 ms

Resources Loaded

6.1 sec

Page Rendered

435 ms

greenroom.nationaltheatre.org.uk screenshot

About Website

Visit greenroom.nationaltheatre.org.uk now to see the best up-to-date Greenroom National Theatre content for United Kingdom and also check out these interesting facts you probably never knew about greenroom.nationaltheatre.org.uk

Lasdun Restaurant, Forza Wine, The Understudy, KERB street food traders, Atrium cafe and Espresso bar have your food and drink needs on the South Bank covered, whatever your appetite.

Visit greenroom.nationaltheatre.org.uk

Key Findings

We analyzed Greenroom.nationaltheatre.org.uk page load time and found that the first response time was 14 ms and then it took 6.5 sec to load all DOM resources and completely render a web page. This is a poor result, as 80% of websites can load faster.

Performance Metrics

greenroom.nationaltheatre.org.uk performance score

17

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.4 s

16/100

10%

LCP (Largest Contentful Paint)

Value12.0 s

0/100

25%

SI (Speed Index)

Value10.6 s

7/100

10%

TBT (Total Blocking Time)

Value760 ms

39/100

30%

CLS (Cumulative Layout Shift)

Value0.507

16/100

15%

TTI (Time to Interactive)

Value14.7 s

8/100

10%

Network Requests Diagram

14 ms

2095 ms

OtAutoBlock.js

42 ms

otSDKStub.js

56 ms

40f2b554-fd35-403c-a701-7d6c596d3a8c.json

26 ms

Our browser made a total of 52 requests to load all elements on the main page. We found that 0% of them (0 request) were addressed to the original Greenroom.nationaltheatre.org.uk, 33% (17 requests) were made to Images.nationaltheatre.org.uk and 6% (3 requests) were made to Cookie-cdn.cookiepro.com. The less responsive or slowest element that took the longest time to load (2.2 sec) relates to the external source Images.nationaltheatre.org.uk.

Page Optimization Overview & Recommendations

Page size can be reduced by 584.7 kB (59%)

Content Size

988.4 kB

After Optimization

403.7 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Greenroom.nationaltheatre.org.uk main page is 988.4 kB. This result falls beyond the top 1M of websites and identifies a large and not optimized web page that may take ages to load. 30% of websites need less resources to load. Javascripts take 442.6 kB which makes up the majority of the site volume.

HTML Optimization

-77%

Potential reduce by 116.5 kB

  • Original 151.4 kB
  • After minification 141.4 kB
  • After compression 34.9 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 116.5 kB or 77% of the original size.

Image Optimization

-0%

Potential reduce by 0 B

  • Original 105.7 kB
  • After minification 105.7 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. Greenroom National Theatre images are well optimized though.

JavaScript Optimization

-55%

Potential reduce by 244.2 kB

  • Original 442.6 kB
  • After minification 442.6 kB
  • After compression 198.3 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 244.2 kB or 55% of the original size.

CSS Optimization

-78%

Potential reduce by 224.0 kB

  • Original 288.7 kB
  • After minification 286.9 kB
  • After compression 64.8 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. Greenroom.nationaltheatre.org.uk needs all CSS files to be minified and compressed as it can save up to 224.0 kB or 78% of the original size.

Requests Breakdown

Number of requests can be reduced by 24 (53%)

Requests Now

45

After Optimization

21

  • Images
  • JavaScript
  • CSS

The browser has sent 45 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Greenroom National Theatre. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 22 to 1 for JavaScripts and from 4 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

14 ms

2095 ms

OtAutoBlock.js

OtAutoBlock.js

42 ms

otSDKStub.js

otSDKStub.js

56 ms

40f2b554-fd35-403c-a701-7d6c596d3a8c.json

40f2b554-fd35-403c-a701-7d6c596d3a8c.json

26 ms

style.min.css

style.min.css

437 ms

main.css

main.css

584 ms

construkt-accordion.css

construkt-accordion.css

297 ms

mailin-front.css

mailin-front.css

86 ms

jquery.min.js

jquery.min.js

23 ms

core.min.js

core.min.js

320 ms

mouse.min.js

mouse.min.js

354 ms

sortable.min.js

sortable.min.js

452 ms

resizable.min.js

resizable.min.js

667 ms

acf.min.js

acf.min.js

679 ms

wp-polyfill-inert.min.js

wp-polyfill-inert.min.js

642 ms

regenerator-runtime.min.js

regenerator-runtime.min.js

546 ms

wp-polyfill.min.js

wp-polyfill.min.js

608 ms

dom-ready.min.js

dom-ready.min.js

772 ms

hooks.min.js

hooks.min.js

874 ms

i18n.min.js

i18n.min.js

888 ms

a11y.min.js

a11y.min.js

866 ms

acf-input.min.js

acf-input.min.js

1086 ms

input_conditional_taxonomy.js

input_conditional_taxonomy.js

900 ms

core.js

core.js

989 ms

mailin-front.js

mailin-front.js

1229 ms

all.js

all.js

1304 ms

accordion.js

accordion.js

973 ms

National-Theatre-entrance_4-Feb-2015-Photo-Philip-Vile.jpg

National-Theatre-entrance_4-Feb-2015-Photo-Philip-Vile.jpg

125 ms

nt-logo.svg

nt-logo.svg

227 ms

ace-logo.svg

ace-logo.svg

180 ms

Forza-wine-national-theatre-2000x1250-italian-rooftop-bar-restaurant-cocktails-photo-caitlin-isola-02.jpg

Forza-wine-national-theatre-2000x1250-italian-rooftop-bar-restaurant-cocktails-photo-caitlin-isola-02.jpg

179 ms

Pericles-2018-maypole-photo-James-Bellorini.jpg

Pericles-2018-maypole-photo-James-Bellorini.jpg

120 ms

24-StudentConference-pointing-Emma-Hare-2000x1250-1.jpg

24-StudentConference-pointing-Emma-Hare-2000x1250-1.jpg

120 ms

external-test-2-1-scaled.jpg

external-test-2-1-scaled.jpg

119 ms

Shop-nav-menu-image-v2.jpg

Shop-nav-menu-image-v2.jpg

118 ms

Forza-wine-national-theatre-2000x1250-italian-rooftop-bar-restaurant-cocktails-photo-caitlin-isola-03-aspect-ratio-2000-1000.jpg

Forza-wine-national-theatre-2000x1250-italian-rooftop-bar-restaurant-cocktails-photo-caitlin-isola-03-aspect-ratio-2000-1000.jpg

524 ms

Lasdun-plating-up-Masthead.jpg

Lasdun-plating-up-Masthead.jpg

623 ms

Meltdown-Cheesburger-tray-of-burgers-fries-sauce-aspect-ratio-2000-1000.jpg

Meltdown-Cheesburger-tray-of-burgers-fries-sauce-aspect-ratio-2000-1000.jpg

2152 ms

Kerb-Understudy-Luckys-spicy-chicken-burger-outside-photo-jwhowardphoto-aspect-ratio-2000-1000.jpg

Kerb-Understudy-Luckys-spicy-chicken-burger-outside-photo-jwhowardphoto-aspect-ratio-2000-1000.jpg

513 ms

LASDUN-restaurant-dish-2000x1250-1.jpg

LASDUN-restaurant-dish-2000x1250-1.jpg

121 ms

Forza-wine-national-theatre-2000x1250-italian-rooftop-bar-restaurant-cocktails-photo-caitlin-isola-02-1.jpg

Forza-wine-national-theatre-2000x1250-italian-rooftop-bar-restaurant-cocktails-photo-caitlin-isola-02-1.jpg

176 ms

The-Understudy-terraces-Summer-2024-Photo-Ryan-Dinham.jpg

The-Understudy-terraces-Summer-2024-Photo-Ryan-Dinham.jpg

175 ms

KERB-traders-Theatre-Square-National-Theatre-Summer-2024.jpg

KERB-traders-Theatre-Square-National-Theatre-Summer-2024.jpg

175 ms

Atrium_Cafe_June_2024.jpg

Atrium_Cafe_June_2024.jpg

176 ms

Espresso-Bar_NationalTheatre_June2024.jpg

Espresso-Bar_NationalTheatre_June2024.jpg

176 ms

NT-bars-drinks-and-snacks-card.jpg

NT-bars-drinks-and-snacks-card.jpg

177 ms

709c6b31-9037-468f-88a6-4e659247799d.woff

709c6b31-9037-468f-88a6-4e659247799d.woff

250 ms

a1c4cdc5-3b7e-4bda-8b2e-776b84520ca3.woff

a1c4cdc5-3b7e-4bda-8b2e-776b84520ca3.woff

450 ms

fa-light-300.woff

fa-light-300.woff

583 ms

f1aceca2-5bef-4b5f-bf31-98d69864ef7d.woff

f1aceca2-5bef-4b5f-bf31-98d69864ef7d.woff

255 ms

fa-brands-400.woff

fa-brands-400.woff

496 ms

Accessibility Review

greenroom.nationaltheatre.org.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

greenroom.nationaltheatre.org.uk best practices score

67

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

Browser errors were logged to the console

High

Page has valid source maps

High

Issues were logged in the Issues panel in Chrome Devtools

SEO Factors

greenroom.nationaltheatre.org.uk SEO score

88

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

    EN

  • Language Claimed

    EN

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Greenroom.nationaltheatre.org.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 Greenroom.nationaltheatre.org.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

greenroom.nationaltheatre.org.uk

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