Tools & Wizards About Us
cudl.lib.cam.ac.uk screenshot

Report Summary

  • 16

    Performance

    Renders faster than
    30% 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

  • 89

    SEO

    Google-friendlier than
    66% of websites

cudl.lib.cam.ac.uk

Cambridge Digital Library

Page Load Speed

2.7 sec in total

First Response

162 ms

Resources Loaded

2 sec

Page Rendered

529 ms

cudl.lib.cam.ac.uk screenshot

About Website

Welcome to cudl.lib.cam.ac.uk homepage info - get ready to check Cudl Lib Cam best content for United Kingdom right away, or after learning these important things about cudl.lib.cam.ac.uk

Visit cudl.lib.cam.ac.uk

Key Findings

We analyzed Cudl.lib.cam.ac.uk page load time and found that the first response time was 162 ms and then it took 2.5 sec to load all DOM resources and completely render a web page. This is a poor result, as 50% of websites can load faster.

Performance Metrics

cudl.lib.cam.ac.uk performance score

16

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.2 s

19/100

10%

LCP (Largest Contentful Paint)

Value19.7 s

0/100

25%

SI (Speed Index)

Value7.8 s

23/100

10%

TBT (Total Blocking Time)

Value880 ms

32/100

30%

CLS (Cumulative Layout Shift)

Value0.624

10/100

15%

TTI (Time to Interactive)

Value15.3 s

7/100

10%

Network Requests Diagram

cudl.lib.cam.ac.uk

162 ms

cudl.lib.cam.ac.uk

451 ms

js

56 ms

common-dc7269e6382751b83608.css

214 ms

page-standard-1b598407c8decb170401.css

205 ms

Our browser made a total of 55 requests to load all elements on the main page. We found that 69% of them (38 requests) were addressed to the original Cudl.lib.cam.ac.uk, 9% (5 requests) were made to Youtube.com and 5% (3 requests) were made to Cam.ac.uk. The less responsive or slowest element that took the longest time to load (1 sec) relates to the external source Cam.ac.uk.

Page Optimization Overview & Recommendations

Page size can be reduced by 16.7 kB (7%)

Content Size

246.7 kB

After Optimization

230.0 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Cudl.lib.cam.ac.uk main page is 246.7 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. 80% of websites need less resources to load and that’s why Accessify’s recommendations for optimization and resource minification can be helpful for this project. Javascripts take 166.7 kB which makes up the majority of the site volume.

HTML Optimization

-80%

Potential reduce by 14.1 kB

  • Original 17.7 kB
  • After minification 14.1 kB
  • After compression 3.6 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 3.6 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 14.1 kB or 80% of the original size.

Image Optimization

-0%

Potential reduce by 0 B

  • Original 2.5 kB
  • After minification 2.5 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. Cudl Lib Cam images are well optimized though.

JavaScript Optimization

-2%

Potential reduce by 2.6 kB

  • Original 166.7 kB
  • After minification 166.7 kB
  • After compression 164.1 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. This website has mostly compressed JavaScripts.

CSS Optimization

-0%

Potential reduce by 0 B

  • Original 59.8 kB
  • After minification 59.8 kB
  • After compression 59.8 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. Cudl.lib.cam.ac.uk has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 11 (27%)

Requests Now

41

After Optimization

30

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 41 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Cudl Lib Cam. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 8 to 1 for JavaScripts and from 5 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

cudl.lib.cam.ac.uk

cudl.lib.cam.ac.uk

162 ms

cudl.lib.cam.ac.uk

cudl.lib.cam.ac.uk

451 ms

js

js

56 ms

common-dc7269e6382751b83608.css

common-dc7269e6382751b83608.css

214 ms

page-standard-1b598407c8decb170401.css

page-standard-1b598407c8decb170401.css

205 ms

common-dc7269e6382751b83608.js

common-dc7269e6382751b83608.js

350 ms

page-standard-1b598407c8decb170401.js

page-standard-1b598407c8decb170401.js

207 ms

default.css

default.css

340 ms

override.css

override.css

333 ms

videoseries

videoseries

189 ms

facebook_black.svg

facebook_black.svg

840 ms

logo.svg

logo.svg

139 ms

noun_search_black.svg

noun_search_black.svg

72 ms

noun_menu_black.svg

noun_menu_black.svg

72 ms

noun_cross_black.svg

noun_cross_black.svg

73 ms

carousel-newton.jpg

carousel-newton.jpg

749 ms

carousel-genizah.jpg

carousel-genizah.jpg

556 ms

carousel-treasures.jpg

carousel-treasures.jpg

750 ms

David-Jones.jpg

David-Jones.jpg

458 ms

Islamic-Manuscripts.jpg

Islamic-Manuscripts.jpg

457 ms

Southern-African-Collections.jpg

Southern-African-Collections.jpg

458 ms

Treasures.jpg

Treasures.jpg

508 ms

MS-II-00005-00011-000-00084.jpg

MS-II-00005-00011-000-00084.jpg

568 ms

MS-ADD-09597-00006-00002-000-00010.jpg

MS-ADD-09597-00006-00002-000-00010.jpg

569 ms

Constable-Collection.jpg

Constable-Collection.jpg

663 ms

Thomas-Gray.jpg

Thomas-Gray.jpg

749 ms

RGO-Drawings-Paintings.jpg

RGO-Drawings-Paintings.jpg

779 ms

Classics.jpg

Classics.jpg

749 ms

collection-queens-390x400.jpg

collection-queens-390x400.jpg

760 ms

Cavendish-Lab.jpg

Cavendish-Lab.jpg

785 ms

university_logo_white-01.svg

university_logo_white-01.svg

850 ms

twitter_blue.svg

twitter_blue.svg

922 ms

youtube_black.svg

youtube_black.svg

1009 ms

Lato-Regular.woff

Lato-Regular.woff

724 ms

Lato-Medium.woff

Lato-Medium.woff

799 ms

Lato-Light.woff

Lato-Light.woff

846 ms

Lato-Thin.woff

Lato-Thin.woff

836 ms

Lato-Hairline.woff

Lato-Hairline.woff

885 ms

Lato-Semibold.woff

Lato-Semibold.woff

847 ms

Lato-Bold.woff

Lato-Bold.woff

887 ms

Lato-Heavy.woff

Lato-Heavy.woff

901 ms

Lato-Black.woff

Lato-Black.woff

919 ms

fontawesome-webfont.woff

fontawesome-webfont.woff

915 ms

www-player.css

www-player.css

7 ms

www-embed-player.js

www-embed-player.js

24 ms

base.js

base.js

48 ms

ad_status.js

ad_status.js

183 ms

UCY5Klx_0fJhMytIltuKLUwnjJON9GWedkq6jjIrpW0.js

UCY5Klx_0fJhMytIltuKLUwnjJON9GWedkq6jjIrpW0.js

149 ms

embed.js

embed.js

47 ms

AIdro_n3gHJEwgiwhabPq0DSdhJIpe05mzig9hoFPLlb5RB99A=s68-c-k-c0x00ffffff-no-rj

AIdro_n3gHJEwgiwhabPq0DSdhJIpe05mzig9hoFPLlb5RB99A=s68-c-k-c0x00ffffff-no-rj

203 ms

KFOmCnqEu92Fr1Mu4mxP.ttf

KFOmCnqEu92Fr1Mu4mxP.ttf

68 ms

KFOlCnqEu92Fr1MmEU9fBBc9.ttf

KFOlCnqEu92Fr1MmEU9fBBc9.ttf

68 ms

id

id

47 ms

Create

Create

105 ms

GenerateIT

GenerateIT

23 ms

Accessibility Review

cudl.lib.cam.ac.uk accessibility score

96

Accessibility Issues

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

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

cudl.lib.cam.ac.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

User Experience

Impact

Issue

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

High

Page has valid source maps

SEO Factors

cudl.lib.cam.ac.uk SEO score

89

Search Engine Optimization Advices

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

    N/A

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Cudl.lib.cam.ac.uk can be misinterpreted by Google and other search engines. Our service has detected that English is used on the page, and neither this language nor any other was claimed in <html> or <meta> tags. Our system also found out that Cudl.lib.cam.ac.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

cudl.lib.cam.ac.uk

Open Graph description is not detected on the main page of Cudl Lib Cam. 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: