Tools & Wizards About Us
nationaljusticemuseum.org.uk screenshot

Report Summary

  • 45

    Performance

    Renders faster than
    64% of other websites

  • 96

    Accessibility

    Visual factors better than
    that of 88% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 93

    SEO

    Google-friendlier than
    83% of websites

nationaljusticemuseum.org.uk

Homepage | National Justice Museum

Page Load Speed

4.3 sec in total

First Response

100 ms

Resources Loaded

3.7 sec

Page Rendered

519 ms

nationaljusticemuseum.org.uk screenshot

About Website

Welcome to nationaljusticemuseum.org.uk homepage info - get ready to check National Justice Museum best content for United Kingdom right away, or after learning these important things about nationaljusticemuseum.org.uk

Visit The National Justice Museum and the City of Caves in Nottingham. Explore it, discover it, live it!

Visit nationaljusticemuseum.org.uk

Key Findings

We analyzed Nationaljusticemuseum.org.uk page load time and found that the first response time was 100 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

nationaljusticemuseum.org.uk performance score

45

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.3 s

18/100

10%

LCP (Largest Contentful Paint)

Value8.4 s

2/100

25%

SI (Speed Index)

Value5.7 s

52/100

10%

TBT (Total Blocking Time)

Value410 ms

67/100

30%

CLS (Cumulative Layout Shift)

Value0.109

87/100

15%

TTI (Time to Interactive)

Value7.7 s

45/100

10%

Network Requests Diagram

nationaljusticemuseum.org.uk

100 ms

nationaljusticemuseum.org.uk

328 ms

www.nationaljusticemuseum.org.uk

485 ms

gtm.js

72 ms

js

102 ms

Our browser made a total of 46 requests to load all elements on the main page. We found that 52% of them (24 requests) were addressed to the original Nationaljusticemuseum.org.uk, 17% (8 requests) were made to Optimise2.assets-servd.host and 9% (4 requests) were made to Use.typekit.net. The less responsive or slowest element that took the longest time to load (2.8 sec) relates to the external source Optimise2.assets-servd.host.

Page Optimization Overview & Recommendations

Page size can be reduced by 31.6 kB (3%)

Content Size

906.7 kB

After Optimization

875.1 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Nationaljusticemuseum.org.uk main page is 906.7 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. 50% of websites need less resources to load. Images take 760.8 kB which makes up the majority of the site volume.

HTML Optimization

-81%

Potential reduce by 22.8 kB

  • Original 28.1 kB
  • After minification 22.2 kB
  • After compression 5.3 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 5.8 kB, which is 21% 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 22.8 kB or 81% of the original size.

Image Optimization

-0%

Potential reduce by 0 B

  • Original 760.8 kB
  • After minification 760.8 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. National Justice Museum images are well optimized though.

JavaScript Optimization

-0%

Potential reduce by 0 B

  • Original 80.2 kB
  • After minification 80.2 kB
  • After compression 80.2 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. This website has mostly compressed JavaScripts.

CSS Optimization

-23%

Potential reduce by 8.8 kB

  • Original 37.6 kB
  • After minification 37.6 kB
  • After compression 28.8 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. Nationaljusticemuseum.org.uk needs all CSS files to be minified and compressed as it can save up to 8.8 kB or 23% of the original size.

Requests Breakdown

Number of requests can be reduced by 19 (50%)

Requests Now

38

After Optimization

19

  • Images
  • JavaScript
  • CSS

The browser has sent 38 CSS, Javascripts, AJAX and image requests in order to completely render the main page of National Justice Museum. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 5 to 1 for JavaScripts and from 6 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

nationaljusticemuseum.org.uk

nationaljusticemuseum.org.uk

100 ms

nationaljusticemuseum.org.uk

nationaljusticemuseum.org.uk

328 ms

www.nationaljusticemuseum.org.uk

www.nationaljusticemuseum.org.uk

485 ms

gtm.js

gtm.js

72 ms

js

js

102 ms

main.min.css

main.min.css

46 ms

slick.css

slick.css

101 ms

cookieconsent.min.css

cookieconsent.min.css

39 ms

Rolling_banner_images_1.jpg

Rolling_banner_images_1.jpg

2756 ms

arts-council.svg

arts-council.svg

62 ms

main-min.js

main-min.js

104 ms

slick.min.js

slick.min.js

53 ms

cookieconsent.min.js

cookieconsent.min.js

52 ms

Rolling_banner_images_2.jpg

Rolling_banner_images_2.jpg

935 ms

Rolling_banner_images_3.jpg

Rolling_banner_images_3.jpg

944 ms

Rolling_banner_images_6.jpg

Rolling_banner_images_6.jpg

886 ms

Rolling_banner_images_5.jpg

Rolling_banner_images_5.jpg

1283 ms

Image_duotone_Museum_reception.jpg

Image_duotone_Museum_reception.jpg

931 ms

museum-light.svg

museum-light.svg

54 ms

cityOfCaves-light.svg

cityOfCaves-light.svg

114 ms

loading.svg

loading.svg

94 ms

untold-stories.svg

untold-stories.svg

82 ms

museum-large.svg

museum-large.svg

99 ms

njmlogo.svg

njmlogo.svg

100 ms

hidden-worlds.svg

hidden-worlds.svg

126 ms

cityOfCaves-large.svg

cityOfCaves-large.svg

132 ms

caveslogo.svg

caveslogo.svg

115 ms

small-triangle-white.svg

small-triangle-white.svg

103 ms

large-triangle-inverted-whiteToBlue.svg

large-triangle-inverted-whiteToBlue.svg

246 ms

museum-dark.svg

museum-dark.svg

123 ms

cityOfCaves-dark.svg

cityOfCaves-dark.svg

249 ms

cross.svg

cross.svg

247 ms

search.svg

search.svg

247 ms

heritage.svg

heritage.svg

96 ms

qoj2ymg.css

qoj2ymg.css

77 ms

css2

css2

53 ms

p.css

p.css

24 ms

Homepage-Image-NJM-Side-4.jpg

Homepage-Image-NJM-Side-4.jpg

1371 ms

splash-caves.jpg

splash-caves.jpg

2084 ms

arrow.svg

arrow.svg

49 ms

arrow-dark.svg

arrow-dark.svg

53 ms

xn7_YHE41ni1AdIRqAuZuw1Bx9mbZk79FO_G.woff

xn7_YHE41ni1AdIRqAuZuw1Bx9mbZk79FO_G.woff

38 ms

xn7_YHE41ni1AdIRqAuZuw1Bx9mbZk4jE-_G.woff

xn7_YHE41ni1AdIRqAuZuw1Bx9mbZk4jE-_G.woff

49 ms

d

d

12 ms

d

d

16 ms

d

d

29 ms

Accessibility Review

nationaljusticemuseum.org.uk accessibility score

96

Accessibility Issues

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

nationaljusticemuseum.org.uk best practices score

83

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

SEO Factors

nationaljusticemuseum.org.uk SEO score

93

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

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 Nationaljusticemuseum.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 Nationaljusticemuseum.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

nationaljusticemuseum.org.uk

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