Tools & Wizards About Us
cgpbooks.co.uk screenshot

Report Summary

  • 28

    Performance

    Renders faster than
    48% of other websites

  • 73

    Accessibility

    Visual factors better than
    that of 38% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 91

    SEO

    Google-friendlier than
    70% of websites

cgpbooks.co.uk

The UK's Favourite Educational Books | CGP Books

Page Load Speed

2 sec in total

First Response

149 ms

Resources Loaded

1.6 sec

Page Rendered

170 ms

cgpbooks.co.uk screenshot

About Website

Visit cgpbooks.co.uk now to see the best up-to-date CGP Books content for United Kingdom and also check out these interesting facts you probably never knew about cgpbooks.co.uk

CGP makes the UK’s most popular educational books for KS1, KS2, SATS, 11+, KS3, GCSE and A-Level — they’re used in 9 out of 10 UK schools! We cover Maths, Science, English, History, Geography, French…...

Visit cgpbooks.co.uk

Key Findings

We analyzed Cgpbooks.co.uk page load time and found that the first response time was 149 ms and then it took 1.8 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 35% of websites can load faster.

Performance Metrics

cgpbooks.co.uk performance score

28

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.5 s

16/100

10%

LCP (Largest Contentful Paint)

Value16.4 s

0/100

25%

SI (Speed Index)

Value7.9 s

22/100

10%

TBT (Total Blocking Time)

Value990 ms

28/100

30%

CLS (Cumulative Layout Shift)

Value0.029

100/100

15%

TTI (Time to Interactive)

Value13.9 s

10/100

10%

Network Requests Diagram

cgpbooks.co.uk

149 ms

www.cgpbooks.co.uk

534 ms

9622.js

61 ms

style.css

74 ms

style-cbx.css

147 ms

Our browser made a total of 42 requests to load all elements on the main page. We found that 67% of them (28 requests) were addressed to the original Cgpbooks.co.uk, 12% (5 requests) were made to Use.typekit.net and 7% (3 requests) were made to Script.crazyegg.com. The less responsive or slowest element that took the longest time to load (534 ms) belongs to the original domain Cgpbooks.co.uk.

Page Optimization Overview & Recommendations

Page size can be reduced by 222.7 kB (15%)

Content Size

1.5 MB

After Optimization

1.3 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Cgpbooks.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. 65% of websites need less resources to load. Images take 1.0 MB which makes up the majority of the site volume.

HTML Optimization

-81%

Potential reduce by 128.0 kB

  • Original 158.7 kB
  • After minification 133.2 kB
  • After compression 30.7 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 25.5 kB, which is 16% 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 128.0 kB or 81% of the original size.

Image Optimization

-8%

Potential reduce by 84.0 kB

  • Original 1.0 MB
  • After minification 923.8 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. CGP Books images are well optimized though.

JavaScript Optimization

-1%

Potential reduce by 2.6 kB

  • Original 182.5 kB
  • After minification 182.5 kB
  • After compression 180.0 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

-6%

Potential reduce by 8.2 kB

  • Original 145.9 kB
  • After minification 145.9 kB
  • After compression 137.7 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. Cgpbooks.co.uk has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 19 (53%)

Requests Now

36

After Optimization

17

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 36 CSS, Javascripts, AJAX and image requests in order to completely render the main page of CGP Books. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 16 to 1 for JavaScripts and from 5 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

cgpbooks.co.uk

cgpbooks.co.uk

149 ms

www.cgpbooks.co.uk

www.cgpbooks.co.uk

534 ms

9622.js

9622.js

61 ms

style.css

style.css

74 ms

style-cbx.css

style-cbx.css

147 ms

vwt1uxh.js

vwt1uxh.js

60 ms

bootstrap-iso.css

bootstrap-iso.css

230 ms

bootstrap.css

bootstrap.css

218 ms

jquery-3.6.0.min.js

jquery-3.6.0.min.js

31 ms

WebResource.axd

WebResource.axd

229 ms

WebServiceCall.js

WebServiceCall.js

270 ms

jquery-core.js

jquery-core.js

349 ms

jquery-cmscompatibility.js

jquery-cmscompatibility.js

330 ms

ScriptResource.axd

ScriptResource.axd

331 ms

ScriptResource.axd

ScriptResource.axd

331 ms

bootstrap_5.bundle.min.js

bootstrap_5.bundle.min.js

332 ms

js

js

92 ms

js

js

112 ms

www.cgpbooks.co.uk.json

www.cgpbooks.co.uk.json

37 ms

2e23b996f30aa45a4331ff625e76329e.js

2e23b996f30aa45a4331ff625e76329e.js

21 ms

fbevents.js

fbevents.js

17 ms

Prof-pic_Colin-900x960.png

Prof-pic_Colin-900x960.png

283 ms

megamenu-Primary-KS2-SATS-450x300-v2_1

megamenu-Primary-KS2-SATS-450x300-v2_1

117 ms

Prim-mm-merch

Prim-mm-merch

117 ms

megamenu-Sec-Revision-Guides-500x250

megamenu-Sec-Revision-Guides-500x250

118 ms

megamenu-Sec-EPWBs-500x250-v2

megamenu-Sec-EPWBs-500x250-v2

143 ms

11-mm-GL-pps-pack-3s-2

11-mm-GL-pps-pack-3s-2

181 ms

11plus-MM-ipad-500x300

11plus-MM-ipad-500x300

181 ms

11-MM-11-bundle-V3

11-MM-11-bundle-V3

182 ms

all-megamenu-functional-skills2

all-megamenu-functional-skills2

181 ms

homepage-hero-GCSE-revision-updated6

homepage-hero-GCSE-revision-updated6

198 ms

tiktok-white.png

tiktok-white.png

282 ms

facebook-white.png

facebook-white.png

351 ms

instagram-white.png

instagram-white.png

352 ms

youtube-white.png

youtube-white.png

352 ms

livechat.ashx

livechat.ashx

166 ms

gtm.js

gtm.js

91 ms

d

d

82 ms

d

d

117 ms

d

d

92 ms

d

d

130 ms

print.css

print.css

131 ms

Accessibility Review

cgpbooks.co.uk accessibility score

73

Accessibility Issues

ARIA

These are opportunities to improve the usage of ARIA in your application which may enhance the experience for users of assistive technology, like a screen reader.

Impact

Issue

High

[aria-hidden="true"] elements contain focusable descendents

High

[role] values are not valid

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Heading elements are not in a sequentially-descending order

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

Image elements do not have [alt] attributes

High

Links do not have a discernible name

Best practices

These items highlight common accessibility best practices.

Impact

Issue

High

[user-scalable="no"] is used in the <meta name="viewport"> element or the [maximum-scale] attribute is less than 5.

Best Practices

cgpbooks.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

cgpbooks.co.uk SEO score

91

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

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

    N/A

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Cgpbooks.co.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 Cgpbooks.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

cgpbooks.co.uk

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