Tools & Wizards About Us
cengage.co.uk screenshot

Report Summary

  • 13

    Performance

    Renders faster than
    25% of other websites

  • 91

    Accessibility

    Visual factors better than
    that of 76% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 83

    SEO

    Google-friendlier than
    46% of websites

cengage.co.uk

Homepage ǀ Cengage EMEA – Cengage

Page Load Speed

4 sec in total

First Response

100 ms

Resources Loaded

3.7 sec

Page Rendered

248 ms

cengage.co.uk screenshot

About Website

Welcome to cengage.co.uk homepage info - get ready to check Cengage best content for United States right away, or after learning these important things about cengage.co.uk

Cengage EMEA is a leading provider of traditional and digital learning materials, accelerating engagement in higher education.

Visit cengage.co.uk

Key Findings

We analyzed Cengage.co.uk page load time and found that the first response time was 100 ms and then it took 3.9 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

cengage.co.uk performance score

13

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value6.4 s

2/100

10%

LCP (Largest Contentful Paint)

Value12.2 s

0/100

25%

SI (Speed Index)

Value14.0 s

1/100

10%

TBT (Total Blocking Time)

Value5,790 ms

0/100

30%

CLS (Cumulative Layout Shift)

Value0.108

87/100

15%

TTI (Time to Interactive)

Value27.5 s

0/100

10%

Network Requests Diagram

cengage.co.uk

100 ms

www.cengage.com

105 ms

gtm.js

431 ms

main.css

41 ms

font-awesome.min.css

39 ms

Our browser made a total of 110 requests to load all elements on the main page. We found that 1% of them (1 request) were addressed to the original Cengage.co.uk, 26% (29 requests) were made to Cengage.com and 12% (13 requests) were made to Embed.widencdn.net. The less responsive or slowest element that took the longest time to load (829 ms) relates to the external source A8392411042.cdn.optimizely.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 240.5 kB (16%)

Content Size

1.5 MB

After Optimization

1.3 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Cengage.co.uk main page is 1.5 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. Only a small number of websites need less resources to load. Images take 1.1 MB which makes up the majority of the site volume.

HTML Optimization

-82%

Potential reduce by 186.4 kB

  • Original 225.9 kB
  • After minification 208.6 kB
  • After compression 39.6 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. 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 186.4 kB or 82% of the original size.

Image Optimization

-2%

Potential reduce by 20.5 kB

  • Original 1.1 MB
  • After minification 1.0 MB

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. Cengage images are well optimized though.

JavaScript Optimization

-14%

Potential reduce by 33.7 kB

  • Original 241.5 kB
  • After minification 241.5 kB
  • After compression 207.9 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 33.7 kB or 14% of the original size.

CSS Optimization

-0%

Potential reduce by 2 B

  • Original 3.5 kB
  • After minification 3.5 kB
  • After compression 3.5 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. Cengage.co.uk has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 71 (70%)

Requests Now

102

After Optimization

31

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 102 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Cengage. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 42 to 1 for JavaScripts and from 16 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

cengage.co.uk

cengage.co.uk

100 ms

www.cengage.com

www.cengage.com

105 ms

gtm.js

gtm.js

431 ms

main.css

main.css

41 ms

font-awesome.min.css

font-awesome.min.css

39 ms

modernizr-custom.js

modernizr-custom.js

67 ms

shared.js

shared.js

75 ms

init.js

init.js

110 ms

v4.js

v4.js

83 ms

evergage.min.js

evergage.min.js

87 ms

8392411042.js

8392411042.js

96 ms

alertBar.css

alertBar.css

73 ms

catalogSearchToolbar.css

catalogSearchToolbar.css

92 ms

banner.css

banner.css

98 ms

htmlBlock.css

htmlBlock.css

99 ms

horizontalRule.css

horizontalRule.css

101 ms

promos-inset.css

promos-inset.css

422 ms

heading-inset.css

heading-inset.css

428 ms

globHeader.js

globHeader.js

444 ms

footer.js

footer.js

426 ms

main.js

main.js

569 ms

analytics.js

analytics.js

567 ms

5.1.0

5.1.0

98 ms

2675280-quinn-left-promo.jpg

2675280-quinn-left-promo.jpg

79 ms

website-banner-mockup-3.psd.jpg

website-banner-mockup-3.psd.jpg

565 ms

2675280-quinn-left-promo.jpg

2675280-quinn-left-promo.jpg

3 ms

2675280-quinn-left-promo.jpg

2675280-quinn-left-promo.jpg

9 ms

2675280-student-icon.png

2675280-student-icon.png

5 ms

2675280-instructor-icon.png

2675280-instructor-icon.png

5 ms

2675280-adminstrator-icon.png

2675280-adminstrator-icon.png

317 ms

2675280-student-icon.png

2675280-student-icon.png

679 ms

2675280-instructor-icon.png

2675280-instructor-icon.png

683 ms

2675280-adminstrator-icon.png

2675280-adminstrator-icon.png

684 ms

2675280-quinn-left-promo.jpg

2675280-quinn-left-promo.jpg

682 ms

logo-cengage.svg

logo-cengage.svg

678 ms

website-banner-mockup-3.psd.jpg

website-banner-mockup-3.psd.jpg

680 ms

a8392411042.html

a8392411042.html

829 ms

OpenSans-Regular.woff

OpenSans-Regular.woff

290 ms

OpenSans-Light.woff

OpenSans-Light.woff

288 ms

OpenSans-SemiBold.woff

OpenSans-SemiBold.woff

287 ms

OpenSans-Bold.woff

OpenSans-Bold.woff

405 ms

js

js

228 ms

scevent.min.js

scevent.min.js

586 ms

bat.js

bat.js

528 ms

fbevents.js

fbevents.js

328 ms

events.js

events.js

804 ms

events.js

events.js

517 ms

js

js

358 ms

otSDKStub.js

otSDKStub.js

734 ms

analytics.js

analytics.js

726 ms

destination

destination

399 ms

destination

destination

455 ms

uwt.js

uwt.js

706 ms

970cb42d-5206-41b3-9ae4-f5a39e06e0b8.js

970cb42d-5206-41b3-9ae4-f5a39e06e0b8.js

760 ms

destination

destination

448 ms

destination

destination

442 ms

insight.min.js

insight.min.js

708 ms

spx

spx

706 ms

elqCfg.min.js

elqCfg.min.js

702 ms

0407b7fa47067ef0.min.js

0407b7fa47067ef0.min.js

702 ms

2675280-student-icon.png

2675280-student-icon.png

207 ms

2675280-instructor-icon.png

2675280-instructor-icon.png

198 ms

2675280-adminstrator-icon.png

2675280-adminstrator-icon.png

326 ms

promos-inset.css

promos-inset.css

196 ms

1734239053467496

1734239053467496

441 ms

heading-inset.css

heading-inset.css

434 ms

activityi;src=10145194;type=brows0;cat=cenga00;ord=3374172712536;npa=0;auiddc=575452750.1715138404;u1=undefined;pscdl=noapi;frm=0;gtm=45fe4510z876867751za201;gcd=13l3l3l3l1;dma=0;epver=2;~oref=https%3A%2F%2Fwww.cengage.com%2F

activityi;src=10145194;type=brows0;cat=cenga00;ord=3374172712536;npa=0;auiddc=575452750.1715138404;u1=undefined;pscdl=noapi;frm=0;gtm=45fe4510z876867751za201;gcd=13l3l3l3l1;dma=0;epver=2;~oref=https%3A%2F%2Fwww.cengage.com%2F

422 ms

315 ms

activityi;src=10154447;type=brand001;cat=cenga0;ord=8329526813911;npa=0;auiddc=575452750.1715138404;pscdl=noapi;frm=0;gtm=45fe4510z876867751za201;gcd=13l3l3l3l1;dma=0;epver=2;~oref=https%3A%2F%2Fwww.cengage.com%2F

activityi;src=10154447;type=brand001;cat=cenga0;ord=8329526813911;npa=0;auiddc=575452750.1715138404;pscdl=noapi;frm=0;gtm=45fe4510z876867751za201;gcd=13l3l3l3l1;dma=0;epver=2;~oref=https%3A%2F%2Fwww.cengage.com%2F

324 ms

227 ms

saq_pxl

saq_pxl

105 ms

main.MTIyYzc3NzllMQ.js

main.MTIyYzc3NzllMQ.js

149 ms

c8ff7feb-5a3d-4687-96ed-57769a480d29.json

c8ff7feb-5a3d-4687-96ed-57769a480d29.json

60 ms

horizontalRule.css

horizontalRule.css

58 ms

adsct

adsct

259 ms

adsct

adsct

196 ms

svrGP

svrGP

492 ms

svrGP

svrGP

490 ms

linkid.js

linkid.js

41 ms

sync

sync

88 ms

ip.json

ip.json

122 ms

htmlBlock.css

htmlBlock.css

65 ms

location

location

110 ms

collect

collect

41 ms

collect

collect

91 ms

89 ms

banner.css

banner.css

67 ms

sync

sync

78 ms

tap.php

tap.php

79 ms

73 ms

pixel.js

pixel.js

177 ms

src=10145194;type=brows0;cat=cenga00;ord=3374172712536;npa=0;auiddc=*;u1=undefined;pscdl=noapi;frm=0;gtm=45fe4510z876867751za201;gcd=13l3l3l3l1;dma=0;epver=2;~oref=https%3A%2F%2Fwww.cengage.com%2F

src=10145194;type=brows0;cat=cenga00;ord=3374172712536;npa=0;auiddc=*;u1=undefined;pscdl=noapi;frm=0;gtm=45fe4510z876867751za201;gcd=13l3l3l3l1;dma=0;epver=2;~oref=https%3A%2F%2Fwww.cengage.com%2F

172 ms

src=10154447;type=brand001;cat=cenga0;ord=8329526813911;npa=0;auiddc=*;pscdl=noapi;frm=0;gtm=45fe4510z876867751za201;gcd=13l3l3l3l1;dma=0;epver=2;~oref=https%3A%2F%2Fwww.cengage.com%2F

src=10154447;type=brand001;cat=cenga0;ord=8329526813911;npa=0;auiddc=*;pscdl=noapi;frm=0;gtm=45fe4510z876867751za201;gcd=13l3l3l3l1;dma=0;epver=2;~oref=https%3A%2F%2Fwww.cengage.com%2F

178 ms

otBannerSdk.js

otBannerSdk.js

55 ms

catalogSearchToolbar.css

catalogSearchToolbar.css

51 ms

log

log

38 ms

rum

rum

23 ms

en.json

en.json

34 ms

logo-cengage.svg

logo-cengage.svg

29 ms

bounce

bounce

10 ms

bounce

bounce

85 ms

otFlat.json

otFlat.json

18 ms

otPcTab.json

otPcTab.json

32 ms

otCommonStyles.css

otCommonStyles.css

29 ms

src=11887001;type=invmedia;cat=cenga000;dc_lat=;dc_rdid=;tag_for_child_directed_treatment=;tfua=;npa=;gdpr=;gdpr_consent=;ord='%20+%20a%20+%20'

src=11887001;type=invmedia;cat=cenga000;dc_lat=;dc_rdid=;tag_for_child_directed_treatment=;tfua=;npa=;gdpr=;gdpr_consent=;ord='%20+%20a%20+%20'

142 ms

src=11887001;type=invmedia;cat=cenga0;dc_lat=;dc_rdid=;tag_for_child_directed_treatment=;tfua=;npa=;gdpr=;gdpr_consent=;ord='%20+%20a%20+%20'

src=11887001;type=invmedia;cat=cenga0;dc_lat=;dc_rdid=;tag_for_child_directed_treatment=;tfua=;npa=;gdpr=;gdpr_consent=;ord='%20+%20a%20+%20'

140 ms

displayAd.js

displayAd.js

142 ms

cengage-horizontal-digital-rgb-cropped.png

cengage-horizontal-digital-rgb-cropped.png

51 ms

pixel

pixel

39 ms

i.match

i.match

85 ms

Accessibility Review

cengage.co.uk accessibility score

91

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

Buttons do not have an accessible name

Tables and lists

These are opportunities to improve the experience of reading tabular or list data using assistive technology, like a screen reader.

Impact

Issue

High

List items (<li>) are not contained within <ul> or <ol> parent elements.

Best Practices

cengage.co.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

High

Missing source maps for large first-party JavaScript

SEO Factors

cengage.co.uk SEO score

83

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

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

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 Cengage.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 Cengage.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

cengage.co.uk

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