Tools & Wizards About Us

Report Summary

  • 29

    Performance

    Renders faster than
    49% of other websites

  • 54

    Accessibility

    Visual factors better than
    that of 23% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 77

    SEO

    Google-friendlier than
    36% of websites

library.cgpbooks.co.uk

Your Online Products | CGP Books

Page Load Speed

1.6 sec in total

First Response

189 ms

Resources Loaded

1.3 sec

Page Rendered

74 ms

About Website

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

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Key Findings

We analyzed Library.cgpbooks.co.uk page load time and found that the first response time was 189 ms and then it took 1.4 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 30% of websites can load faster.

Performance Metrics

library.cgpbooks.co.uk performance score

29

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.4 s

17/100

10%

LCP (Largest Contentful Paint)

Value12.7 s

0/100

25%

SI (Speed Index)

Value5.7 s

52/100

10%

TBT (Total Blocking Time)

Value1,300 ms

18/100

30%

CLS (Cumulative Layout Shift)

Value0.001

100/100

15%

TTI (Time to Interactive)

Value11.9 s

17/100

10%

Network Requests Diagram

library.cgpbooks.co.uk

189 ms

bookspacedemo

390 ms

9622.js

49 ms

style.css

74 ms

style-cbx.css

148 ms

Our browser made a total of 33 requests to load all elements on the main page. We found that 3% of them (1 request) were addressed to the original Library.cgpbooks.co.uk, 58% (19 requests) were made to Cgpbooks.co.uk and 15% (5 requests) were made to Use.typekit.net. The less responsive or slowest element that took the longest time to load (390 ms) relates to the external source Cgpbooks.co.uk.

Page Optimization Overview & Recommendations

Page size can be reduced by 101.4 kB (23%)

Content Size

440.2 kB

After Optimization

338.8 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Library.cgpbooks.co.uk main page is 440.2 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. 55% of websites need less resources to load. Javascripts take 156.5 kB which makes up the majority of the site volume.

HTML Optimization

-76%

Potential reduce by 90.1 kB

  • Original 118.8 kB
  • After minification 102.7 kB
  • After compression 28.7 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 16.1 kB, which is 14% 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 90.1 kB or 76% of the original size.

Image Optimization

-0%

Potential reduce by 0 B

  • Original 19.1 kB
  • After minification 19.1 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. Library CGP Books images are well optimized though.

JavaScript Optimization

-2%

Potential reduce by 3.4 kB

  • Original 156.5 kB
  • After minification 156.5 kB
  • After compression 153.1 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

-5%

Potential reduce by 8.0 kB

  • Original 145.8 kB
  • After minification 145.8 kB
  • After compression 137.9 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. Library.cgpbooks.co.uk has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 19 (70%)

Requests Now

27

After Optimization

8

  • Images
  • JavaScript
  • CSS

The browser has sent 27 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Library 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

Accessibility Review

library.cgpbooks.co.uk accessibility score

54

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

High

ARIA IDs are not unique

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

High

Image elements do not have [alt] attributes

High

Links do not have a discernible name

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

[id] attributes on active, focusable elements are not unique

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

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

library.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

library.cgpbooks.co.uk SEO score

77

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

High

Page is blocked from indexing

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 Library.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 Library.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

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