Tools & Wizards About Us

Report Summary

  • 4

    Performance

    Renders faster than
    20% of other websites

  • 83

    Accessibility

    Visual factors better than
    that of 54% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 90

    SEO

    Google-friendlier than
    68% of websites

suppliers.bookdepository.com

Book Depository: Free delivery worldwide on over 20 million books

Page Load Speed

3.5 sec in total

First Response

354 ms

Resources Loaded

1.6 sec

Page Rendered

1.5 sec

About Website

Welcome to suppliers.bookdepository.com homepage info - get ready to check Suppliers Book Depository best content for Australia right away, or after learning these important things about suppliers.bookdepository.com

Book Depository is the world's most international online bookstore offering over 20 million books with free delivery worldwide.

Visit suppliers.bookdepository.com

Key Findings

We analyzed Suppliers.bookdepository.com page load time and found that the first response time was 354 ms and then it took 3.1 sec to load all DOM resources and completely render a web page. This is a poor result, as 55% of websites can load faster.

Performance Metrics

suppliers.bookdepository.com performance score

4

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value6.7 s

2/100

10%

LCP (Largest Contentful Paint)

Value8.5 s

1/100

25%

SI (Speed Index)

Value8.8 s

16/100

10%

TBT (Total Blocking Time)

Value5,610 ms

0/100

30%

CLS (Cumulative Layout Shift)

Value0.62

10/100

15%

TTI (Time to Interactive)

Value15.3 s

7/100

10%

Network Requests Diagram

suppliers.bookdepository.com

354 ms

screen.css

6 ms

weebox.css

8 ms

autosuggest.css

10 ms

jquery.jcarousel.js

8 ms

Our browser made a total of 146 requests to load all elements on the main page. We found that 1% of them (1 request) were addressed to the original Suppliers.bookdepository.com, 37% (54 requests) were made to D39ttiideeq0ys.cloudfront.net and 16% (23 requests) were made to D1w7fb2mkkr3kw.cloudfront.net. The less responsive or slowest element that took the longest time to load (697 ms) relates to the external source D4rri9bdfuube.cloudfront.net.

Page Optimization Overview & Recommendations

Page size can be reduced by 644.5 kB (54%)

Content Size

1.2 MB

After Optimization

545.3 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Suppliers.bookdepository.com main page is 1.2 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. 55% of websites need less resources to load. Images take 385.6 kB which makes up the majority of the site volume.

HTML Optimization

-87%

Potential reduce by 164.7 kB

  • Original 189.2 kB
  • After minification 179.7 kB
  • After compression 24.5 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 164.7 kB or 87% of the original size.

Image Optimization

-5%

Potential reduce by 18.6 kB

  • Original 385.6 kB
  • After minification 367.0 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. Suppliers Book Depository images are well optimized though.

JavaScript Optimization

-69%

Potential reduce by 259.1 kB

  • Original 376.5 kB
  • After minification 315.6 kB
  • After compression 117.4 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 259.1 kB or 69% of the original size.

CSS Optimization

-85%

Potential reduce by 202.1 kB

  • Original 238.5 kB
  • After minification 200.4 kB
  • After compression 36.4 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. Suppliers.bookdepository.com needs all CSS files to be minified and compressed as it can save up to 202.1 kB or 85% of the original size.

Requests Breakdown

Number of requests can be reduced by 29 (32%)

Requests Now

90

After Optimization

61

  • Images
  • JavaScript
  • CSS

The browser has sent 90 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Suppliers Book Depository. 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

suppliers.bookdepository.com accessibility score

83

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

[id] attributes on active, focusable elements 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

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

suppliers.bookdepository.com 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

SEO Factors

suppliers.bookdepository.com SEO score

90

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

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 Suppliers.bookdepository.com 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 Suppliers.bookdepository.com 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 Suppliers Book Depository. 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: