Tools & Wizards About Us

Report Summary

  • 17

    Performance

    Renders faster than
    32% of other websites

  • 87

    Accessibility

    Visual factors better than
    that of 66% of websites

  • 92

    Best Practices

    More advanced features
    available than in
    80% of websites

  • 86

    SEO

    Google-friendlier than
    60% of websites

bobbooks.co.uk

Bob Books

Page Load Speed

2.1 sec in total

First Response

264 ms

Resources Loaded

1.8 sec

Page Rendered

52 ms

About Website

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

Visit bobbooks.co.uk

Key Findings

We analyzed Bobbooks.co.uk page load time and found that the first response time was 264 ms and then it took 1.9 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 40% of websites can load faster.

Performance Metrics

bobbooks.co.uk performance score

17

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value8.7 s

0/100

10%

LCP (Largest Contentful Paint)

Value12.4 s

0/100

25%

SI (Speed Index)

Value17.0 s

0/100

10%

TBT (Total Blocking Time)

Value2,570 ms

4/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value13.1 s

12/100

10%

Network Requests Diagram

bobbooks.co.uk

264 ms

bobbooks.co.uk

353 ms

www.bobbooks.co.uk

517 ms

script.js

44 ms

css2

32 ms

Our browser made a total of 8 requests to load all elements on the main page. We found that 63% of them (5 requests) were addressed to the original Bobbooks.co.uk, 13% (1 request) were made to Cdn-cookieyes.com and 13% (1 request) were made to Fonts.googleapis.com. The less responsive or slowest element that took the longest time to load (690 ms) belongs to the original domain Bobbooks.co.uk.

Page Optimization Overview & Recommendations

Page size can be reduced by 282.2 kB (25%)

Content Size

1.1 MB

After Optimization

866.3 kB

  • HTML
  • JavaScript
  • CSS

In fact, the total size of Bobbooks.co.uk main page is 1.1 MB. This result falls within a vast category (top 1 000 000) of heavyweight, probably not optimized, and thus slow loading web pages. Only 5% of websites need less resources to load. Javascripts take 1.1 MB which makes up the majority of the site volume.

HTML Optimization

-49%

Potential reduce by 478 B

  • Original 979 B
  • After minification 880 B
  • After compression 501 B

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 478 B or 49% of the original size.

JavaScript Optimization

-24%

Potential reduce by 268.2 kB

  • Original 1.1 MB
  • After minification 1.1 MB
  • After compression 834.4 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 268.2 kB or 24% of the original size.

CSS Optimization

-30%

Potential reduce by 13.6 kB

  • Original 45.0 kB
  • After minification 45.0 kB
  • After compression 31.4 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. Bobbooks.co.uk needs all CSS files to be minified and compressed as it can save up to 13.6 kB or 30% of the original size.

Requests Breakdown

We found no issues to fix!

Requests Now

4

After Optimization

4

  • JavaScript
  • CSS

The browser has sent 4 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Bob Books. According to our analytics all requests are already optimized.

Network Requests Diagram

Accessibility Review

bobbooks.co.uk accessibility score

87

Accessibility Issues

Contrast

These are opportunities to improve the legibility of your content.

Impact

Issue

High

Background and foreground colors do not have a sufficient contrast ratio.

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

Image elements do not have [alt] attributes

High

Links do not have a discernible name

Best Practices

bobbooks.co.uk best practices score

92

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

Missing source maps for large first-party JavaScript

SEO Factors

bobbooks.co.uk SEO score

86

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

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

Language and Encoding

  • Language Detected

    N/A

  • Language Claimed

    EN

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Bobbooks.co.uk can be misinterpreted by Google and other search engines. Unfortunately we cannot identify language used on the page (probably there is a mix of languages, too little text or something else), while the claimed language is English. Our system also found out that Bobbooks.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 description is not detected on the main page of Bob Books. 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: