Report Summary

  • 14

    Performance

    Renders faster than
    26% of other websites

  • 52

    Accessibility

    Visual factors better than
    that of 21% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 86

    SEO

    Google-friendlier than
    60% of websites

clarks.co.jp

Clarks (クラークスジャパン) 公式通販

Page Load Speed

3.2 sec in total

First Response

373 ms

Resources Loaded

2.7 sec

Page Rendered

183 ms

clarks.co.jp screenshot

About Website

Visit clarks.co.jp now to see the best up-to-date Clarks content for Japan and also check out these interesting facts you probably never knew about clarks.co.jp

ワラビー、デザートブーツなど定番からメンズ・レディースの最新トレンドまで多数ラインアップ。Clarksの最新コレクションをチェック:ブーツ、フラットシューズ、パンプス、サンダル、スニーカー。公式サイトならではの豊富なサイズバリエーション。即日出荷・送料無料(注文金額5,500円以上)・サイズ交換無料。

Visit clarks.co.jp

Key Findings

We analyzed Clarks.co.jp page load time and found that the first response time was 373 ms and then it took 2.8 sec to load all DOM resources and completely render a web page. This is a poor result, as 55% of websites can load faster. This domain responded with an error, which can significantly jeopardize Clarks.co.jp rating and web reputation

Performance Metrics

clarks.co.jp performance score

14

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value8.9 s

0/100

10%

LCP (Largest Contentful Paint)

Value15.7 s

0/100

25%

SI (Speed Index)

Value14.2 s

1/100

10%

TBT (Total Blocking Time)

Value7,860 ms

0/100

30%

CLS (Cumulative Layout Shift)

Value0.078

95/100

15%

TTI (Time to Interactive)

Value23.4 s

1/100

10%

Network Requests Diagram

www.clarks.co.jp

373 ms

ie.css

82 ms

054f9f09-e669-4fb8-8e68-a941bd9ad382.css

60 ms

css

25 ms

style-japan.css

243 ms

Our browser made a total of 68 requests to load all elements on the main page. We found that 34% of them (23 requests) were addressed to the original Clarks.co.jp, 47% (32 requests) were made to Clarks-international-wordpress.s3-website-eu-west-1.amazonaws.com and 6% (4 requests) were made to Fast.fonts.net. The less responsive or slowest element that took the longest time to load (981 ms) relates to the external source Clarks-international-wordpress.s3-website-eu-west-1.amazonaws.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 545.1 kB (25%)

Content Size

2.1 MB

After Optimization

1.6 MB

In fact, the total size of Clarks.co.jp main page is 2.1 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 1.5 MB which makes up the majority of the site volume.

HTML Optimization

-88%

Potential reduce by 57.5 kB

  • Original 65.2 kB
  • After minification 40.4 kB
  • After compression 7.7 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 24.8 kB, which is 38% 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 57.5 kB or 88% of the original size.

Image Optimization

-4%

Potential reduce by 54.1 kB

  • Original 1.5 MB
  • After minification 1.4 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. Clarks images are well optimized though.

JavaScript Optimization

-66%

Potential reduce by 246.8 kB

  • Original 373.8 kB
  • After minification 373.4 kB
  • After compression 127.0 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 246.8 kB or 66% of the original size.

CSS Optimization

-88%

Potential reduce by 186.8 kB

  • Original 212.1 kB
  • After minification 162.4 kB
  • After compression 25.4 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. Clarks.co.jp needs all CSS files to be minified and compressed as it can save up to 186.8 kB or 88% of the original size.

Requests Breakdown

Number of requests can be reduced by 14 (23%)

Requests Now

61

After Optimization

47

The browser has sent 61 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 5 to 1 for JavaScripts and from 5 to 1 for CSS and as a result speed up the page load time.

Accessibility Review

clarks.co.jp accessibility score

52

Accessibility Issues

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

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

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

clarks.co.jp best practices score

67

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

Browser errors were logged to the console

High

Page has valid source maps

SEO Factors

clarks.co.jp SEO score

86

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

Language and Encoding

  • Language Detected

    JA

  • Language Claimed

    JP

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Clarks.co.jp can be misinterpreted by Google and other search engines. Our service has detected that Japanese is used on the page, and it does not match the claimed language. Our system also found out that Clarks.co.jp 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: