Tools & Wizards About Us
dankan.co.jp screenshot

Report Summary

  • 14

    Performance

    Renders faster than
    26% of other websites

  • 64

    Accessibility

    Visual factors better than
    that of 30% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    36% of websites

  • 83

    SEO

    Google-friendlier than
    46% of websites

dankan.co.jp

オーダースーツ専門店 ダンカン - 低価格で高品質のおしゃれな1着を

Page Load Speed

10.1 sec in total

First Response

809 ms

Resources Loaded

8.8 sec

Page Rendered

522 ms

dankan.co.jp screenshot

About Website

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

創業1978年の老舗オーダースーツ専門店「DANKAN（ダンカン）」では、東京、大阪、福岡を中心に関東・関西・東海・中国・九州と全国で店舗を展開しております。イタリア・イギリス等から買い付けした高品質の生地を用いたおしゃれなスーツを低価格でお仕立てします。

Visit dankan.co.jp

Key Findings

We analyzed Dankan.co.jp page load time and found that the first response time was 809 ms and then it took 9.3 sec to load all DOM resources and completely render a web page. This is a poor result, as 85% of websites can load faster.

Performance Metrics

dankan.co.jp performance score

14

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value8.4 s

0/100

10%

LCP (Largest Contentful Paint)

Value57.1 s

0/100

25%

SI (Speed Index)

Value27.0 s

0/100

10%

TBT (Total Blocking Time)

Value6,200 ms

0/100

30%

CLS (Cumulative Layout Shift)

Value0.082

94/100

15%

TTI (Time to Interactive)

Value42.6 s

0/100

10%

Network Requests Diagram

dankan.co.jp

809 ms

bootstrap.min.css

906 ms

common.css

772 ms

jquery-1.8.min.js

995 ms

cinzel.css

349 ms

Our browser made a total of 150 requests to load all elements on the main page. We found that 25% of them (38 requests) were addressed to the original Dankan.co.jp, 42% (63 requests) were made to Scontent.xx.fbcdn.net and 14% (21 requests) were made to Static.xx.fbcdn.net. The less responsive or slowest element that took the longest time to load (5.6 sec) belongs to the original domain Dankan.co.jp.

Page Optimization Overview & Recommendations

Page size can be reduced by 696.4 kB (22%)

Content Size

3.2 MB

After Optimization

2.5 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Dankan.co.jp main page is 3.2 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. 75% 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 2.3 MB which makes up the majority of the site volume.

HTML Optimization

-77%

Potential reduce by 29.1 kB

  • Original 37.9 kB
  • After minification 37.4 kB
  • After compression 8.7 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. 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 29.1 kB or 77% of the original size.

Image Optimization

-2%

Potential reduce by 55.6 kB

  • Original 2.3 MB
  • After minification 2.3 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. Dankan images are well optimized though.

JavaScript Optimization

-61%

Potential reduce by 272.9 kB

  • Original 447.5 kB
  • After minification 440.6 kB
  • After compression 174.6 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 272.9 kB or 61% of the original size.

CSS Optimization

-84%

Potential reduce by 338.8 kB

  • Original 404.5 kB
  • After minification 383.9 kB
  • After compression 65.6 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. Dankan.co.jp needs all CSS files to be minified and compressed as it can save up to 338.8 kB or 84% of the original size.

Requests Breakdown

Number of requests can be reduced by 42 (30%)

Requests Now

141

After Optimization

99

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 141 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Dankan. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 27 to 1 for JavaScripts and from 12 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

dankan.co.jp

dankan.co.jp

809 ms

bootstrap.min.css

bootstrap.min.css

906 ms

common.css

common.css

772 ms

jquery-1.8.min.js

jquery-1.8.min.js

995 ms

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cinzel.css

349 ms

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377 ms

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379 ms

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722 ms

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935 ms

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Accessibility Review

dankan.co.jp accessibility score

64

Accessibility Issues

ARIA

These are opportunities to improve the usage of ARIA in your application which may enhance the experience for users of assistive technology, like a screen reader.

Impact

Issue

High

[aria-*] attributes do not match their roles

High

[aria-hidden="true"] elements contain focusable descendents

High

ARIA input fields do not have accessible names

High

Elements with an ARIA [role] that require children to contain a specific [role] are missing some or all of those required children.

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

<frame> or <iframe> elements do not have a title

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

[id] attributes on active, focusable elements are not unique

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

dankan.co.jp best practices score

75

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

User Experience

Impact

Issue

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

SEO Factors

dankan.co.jp SEO score

83

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 doesn't use legible font sizes

High

Tap targets are not sized appropriately

Language and Encoding

  • Language Detected

    JA

  • Language Claimed

    JA

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Dankan.co.jp can be misinterpreted by Google and other search engines. Our service has detected that Japanese is used on the page, and it matches the claimed language. Our system also found out that Dankan.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

dankan.co.jp

Open Graph data is detected on the main page of Dankan. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: