Report Summary

  • 14

    Performance

    Renders faster than
    26% of other websites

  • 100

    Accessibility

    Visual factors better than
    that of 97% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    57% of websites

  • 90

    SEO

    Google-friendlier than
    69% of websites

clarks.co.uk

Clarks Shoes & Footwear | Sandals, Shoes, Boots & Accessories

Page Load Speed

74.1 sec in total

First Response

1.5 sec

Resources Loaded

59.9 sec

Page Rendered

12.7 sec

clarks.co.uk screenshot

About Website

Welcome to clarks.co.uk homepage info - get ready to check Clarks best content for United Kingdom right away, or after learning these important things about clarks.co.uk

Discover the latest shoe trends & footwear styles at Clarks. Explore our range of fashionable shoes, trendy sandals, casual trainers & iconic boots.

Visit clarks.co.uk

Key Findings

We analyzed Clarks.co.uk page load time and found that the first response time was 1.5 sec and then it took 72.6 sec to load all DOM resources and completely render a web page. This is a poor result, as 95% of websites can load faster. Unfortunately, there were 45 request timeouts, which can generally increase the web page load time, as the browser stays idle while waiting for website response.

Performance Metrics

clarks.co.uk performance score

14

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.2 s

19/100

10%

LCP (Largest Contentful Paint)

Value6.1 s

12/100

25%

SI (Speed Index)

Value8.3 s

19/100

10%

TBT (Total Blocking Time)

Value2,230 ms

6/100

30%

CLS (Cumulative Layout Shift)

Value0.367

29/100

15%

TTI (Time to Interactive)

Value15.0 s

7/100

10%

Network Requests Diagram

www.clarks.co.uk

1478 ms

assistedservicestorefront.css

783 ms

liveeditaddon.css

788 ms

worldpayb2caddon.css

1013 ms

main.css

1098 ms

Our browser made a total of 188 requests to load all elements on the main page. We found that 39% of them (73 requests) were addressed to the original Clarks.co.uk, 28% (53 requests) were made to S7g10.scene7.com and 3% (5 requests) were made to Maps.googleapis.com. The less responsive or slowest element that took the longest time to load (23.6 sec) relates to the external source S7g10.scene7.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 5.2 MB (52%)

Content Size

10.0 MB

After Optimization

4.8 MB

In fact, the total size of Clarks.co.uk main page is 10.0 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. 80% of websites need less resources to load and that’s why Accessify’s recommendations for optimization and resource minification can be helpful for this project. Images take 4.7 MB which makes up the majority of the site volume.

HTML Optimization

-87%

Potential reduce by 275.2 kB

  • Original 314.6 kB
  • After minification 295.6 kB
  • After compression 39.3 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 275.2 kB or 87% of the original size.

Image Optimization

-28%

Potential reduce by 1.3 MB

  • Original 4.7 MB
  • After minification 3.3 MB

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. Obviously, Clarks needs image optimization as it can save up to 1.3 MB or 28% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-69%

Potential reduce by 2.8 MB

  • Original 4.1 MB
  • After minification 3.9 MB
  • After compression 1.3 MB

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 2.8 MB or 69% of the original size.

CSS Optimization

-86%

Potential reduce by 787.1 kB

  • Original 919.5 kB
  • After minification 837.3 kB
  • After compression 132.3 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. Clarks.co.uk needs all CSS files to be minified and compressed as it can save up to 787.1 kB or 86% of the original size.

Requests Breakdown

Number of requests can be reduced by 118 (86%)

Requests Now

138

After Optimization

20

The browser has sent 138 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Clarks. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 74 to 1 for JavaScripts and from 31 to 1 for CSS and as a result speed up the page load time.

Accessibility Review

clarks.co.uk accessibility score

100

Accessibility Issues

Best Practices

clarks.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

clarks.co.uk 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 Clarks.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 Clarks.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 Clarks. 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: