Report Summary

  • 34

    Performance

    Renders faster than
    54% of other websites

  • 91

    Accessibility

    Visual factors better than
    that of 78% of websites

  • 92

    Best Practices

    More advanced features
    available than in
    81% of websites

  • 90

    SEO

    Google-friendlier than
    68% of websites

mens-kokubo.jp

メンズスーツKOKUBO | ビジネススーツ 通販

Page Load Speed

6.6 sec in total

First Response

751 ms

Resources Loaded

4.9 sec

Page Rendered

956 ms

mens-kokubo.jp screenshot

About Website

Visit mens-kokubo.jp now to see the best up-to-date Mens Kokubo content for Japan and also check out these interesting facts you probably never knew about mens-kokubo.jp

KOKUBOはビジネススーツ・スラックス・フォーマル・カジュアル・大きいサイズなど、良質の紳士服を幅広く取り揃えております。専門店だからできる価格・品質・サイズ展開

Visit mens-kokubo.jp

Key Findings

We analyzed Mens-kokubo.jp page load time and found that the first response time was 751 ms and then it took 5.9 sec to load all DOM resources and completely render a web page. This is a poor result, as 75% of websites can load faster.

Performance Metrics

mens-kokubo.jp performance score

34

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.5 s

15/100

10%

LCP (Largest Contentful Paint)

Value14.1 s

0/100

25%

SI (Speed Index)

Value10.0 s

9/100

10%

TBT (Total Blocking Time)

Value270 ms

82/100

30%

CLS (Cumulative Layout Shift)

Value1.408

0/100

15%

TTI (Time to Interactive)

Value5.9 s

65/100

10%

Network Requests Diagram

mens-kokubo.jp

751 ms

style-all.css

535 ms

kokubo_new.css

361 ms

s_head-kokubo.html

1318 ms

event.html

363 ms

Our browser made a total of 152 requests to load all elements on the main page. We found that 11% of them (17 requests) were addressed to the original Mens-kokubo.jp, 55% (83 requests) were made to Rakuten.ne.jp and 22% (33 requests) were made to Secure.future-s.com. The less responsive or slowest element that took the longest time to load (1.8 sec) relates to the external source Secure.future-s.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 233.7 kB (7%)

Content Size

3.3 MB

After Optimization

3.1 MB

In fact, the total size of Mens-kokubo.jp main page is 3.3 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. 65% of websites need less resources to load. Images take 3.1 MB which makes up the majority of the site volume.

HTML Optimization

-83%

Potential reduce by 41.2 kB

  • Original 49.6 kB
  • After minification 37.5 kB
  • After compression 8.4 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 12.2 kB, which is 25% 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 41.2 kB or 83% of the original size.

Image Optimization

-1%

Potential reduce by 35.6 kB

  • Original 3.1 MB
  • After minification 3.0 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. Mens Kokubo images are well optimized though.

JavaScript Optimization

-58%

Potential reduce by 99.0 kB

  • Original 171.1 kB
  • After minification 170.9 kB
  • After compression 72.1 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 99.0 kB or 58% of the original size.

CSS Optimization

-85%

Potential reduce by 57.9 kB

  • Original 68.0 kB
  • After minification 41.0 kB
  • After compression 10.1 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. Mens-kokubo.jp needs all CSS files to be minified and compressed as it can save up to 57.9 kB or 85% of the original size.

Requests Breakdown

Number of requests can be reduced by 13 (9%)

Requests Now

141

After Optimization

128

The browser has sent 141 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Mens Kokubo. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 9 to 1 for JavaScripts and from 6 to 1 for CSS and as a result speed up the page load time.

Accessibility Review

mens-kokubo.jp accessibility score

91

Accessibility Issues

Tables and lists

These are opportunities to improve the experience of reading tabular or list data using assistive technology, like a screen reader.

Impact

Issue

High

Lists do not contain only <li> elements and script supporting elements (<script> and <template>).

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

mens-kokubo.jp 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

SEO Factors

mens-kokubo.jp SEO score

90

Search Engine Optimization Advices

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 doesn't use legible font sizes

High

Tap targets are not sized appropriately

Language and Encoding

  • Language Detected

    JA

  • Language Claimed

    N/A

  • Encoding

    SHIFT_JIS

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Mens-kokubo.jp can be misinterpreted by Google and other search engines. Our service has detected that Japanese is used on the page, and neither this language nor any other was claimed in <html> or <meta> tags. Our system also found out that Mens-kokubo.jp main page’s claimed encoding is shift_jis. Changing it to UTF-8 can be a good choice, as this format is commonly used for encoding all over the web and thus their visitors won’t have any troubles with symbol transcription or reading.

Social Sharing Optimization

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