Tools & Wizards About Us
amzon.co.uk screenshot

Report Summary

  • 88

    Performance

    Renders faster than
    90% of other websites

  • 82

    Accessibility

    Visual factors better than
    that of 54% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    56% of websites

  • 75

    SEO

    Google-friendlier than
    32% of websites

amzon.co.uk

Amazon.co.uk: Low Prices in Electronics, Books, Sports Equipment & more

Page Load Speed

1.2 sec in total

First Response

151 ms

Resources Loaded

943 ms

Page Rendered

84 ms

amzon.co.uk screenshot

About Website

Visit amzon.co.uk now to see the best up-to-date Amzon content and also check out these interesting facts you probably never knew about amzon.co.uk

Sign up to Amazon Prime for unlimited free delivery. Low prices at Amazon on digital cameras, MP3, sports, books, music, DVDs, video games, home & garden and much more.

Visit amzon.co.uk

Key Findings

We analyzed Amzon.co.uk page load time and found that the first response time was 151 ms and then it took 1 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 20% of websites can load faster.

Performance Metrics

amzon.co.uk performance score

88

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.0 s

50/100

10%

LCP (Largest Contentful Paint)

Value3.1 s

74/100

25%

SI (Speed Index)

Value3.0 s

94/100

10%

TBT (Total Blocking Time)

Value0 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value3.0 s

96/100

10%

Network Requests Diagram

amzon.co.uk

151 ms

amzon.co.uk

282 ms

www.amazon.co.uk

180 ms

AmazonUI-3c913031596ca78a3768f4e934b1cc02ce238101.secure.min._V1_.css

15 ms

requestId=Y72S5K1T5FHGJ0561C74&js=1

292 ms

Our browser made a total of 11 requests to load all elements on the main page. We found that 18% of them (2 requests) were addressed to the original Amzon.co.uk, 45% (5 requests) were made to Images-na.ssl-images-amazon.com and 18% (2 requests) were made to Images-eu.ssl-images-amazon.com. The less responsive or slowest element that took the longest time to load (292 ms) relates to the external source Fls-eu.amazon.co.uk.

Page Optimization Overview & Recommendations

Page size can be reduced by 11.9 kB (16%)

Content Size

72.6 kB

After Optimization

60.6 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Amzon.co.uk main page is 72.6 kB. 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. CSS take 23.2 kB which makes up the majority of the site volume.

HTML Optimization

-75%

Potential reduce by 5.8 kB

  • Original 7.8 kB
  • After minification 5.3 kB
  • After compression 2.0 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 2.5 kB, which is 32% 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 5.8 kB or 75% of the original size.

Image Optimization

-0%

Potential reduce by 110 B

  • Original 23.0 kB
  • After minification 22.8 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. Amzon images are well optimized though.

JavaScript Optimization

-32%

Potential reduce by 6.0 kB

  • Original 18.7 kB
  • After minification 18.7 kB
  • After compression 12.7 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 6.0 kB or 32% of the original size.

CSS Optimization

-0%

Potential reduce by 14 B

  • Original 23.2 kB
  • After minification 23.2 kB
  • After compression 23.1 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. Amzon.co.uk has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 3 (38%)

Requests Now

8

After Optimization

5

  • Images
  • JavaScript
  • CSS

The browser has sent 8 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Amzon. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 4 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

amzon.co.uk

amzon.co.uk

151 ms

amzon.co.uk

amzon.co.uk

282 ms

www.amazon.co.uk

www.amazon.co.uk

180 ms

AmazonUI-3c913031596ca78a3768f4e934b1cc02ce238101.secure.min._V1_.css

AmazonUI-3c913031596ca78a3768f4e934b1cc02ce238101.secure.min._V1_.css

15 ms

requestId=Y72S5K1T5FHGJ0561C74&js=1

requestId=Y72S5K1T5FHGJ0561C74&js=1

292 ms

csm-captcha-instrumentation.min.js

csm-captcha-instrumentation.min.js

17 ms

rd-script-6d68177fa6061598e9509dc4b5bdd08d.js

rd-script-6d68177fa6061598e9509dc4b5bdd08d.js

19 ms

aui_sprite_0007-1x._V383827579_.png

aui_sprite_0007-1x._V383827579_.png

2 ms

Captcha_ovtpydegqn.jpg

Captcha_ovtpydegqn.jpg

10 ms

ue-base-1c399ad9886cab69575e1e5ee15c61a1._V313498596_.js

ue-base-1c399ad9886cab69575e1e5ee15c61a1._V313498596_.js

3 ms

ClientSideMetricsAUIJavascript-51171fbdd28e1a7a61e922e8f0272af8bc74d37b.secure.variant-desktop-session-snapshot-keypress.min._V2_.js

ClientSideMetricsAUIJavascript-51171fbdd28e1a7a61e922e8f0272af8bc74d37b.secure.variant-desktop-session-snapshot-keypress.min._V2_.js

2 ms

Accessibility Review

amzon.co.uk accessibility score

82

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.

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

Best Practices

amzon.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

User Experience

Impact

Issue

High

Serves images with low resolution

SEO Factors

amzon.co.uk SEO score

75

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

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

    EN

  • Encoding

    UTF-8

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

amzon.co.uk

Open Graph description is not detected on the main page of Amzon. 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: