Report Summary

  • 50

    Performance

    Renders faster than
    70% of other websites

  • 93

    Accessibility

    Visual factors better than
    that of 82% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    36% of websites

  • 94

    SEO

    Google-friendlier than
    91% of websites

shoeisha.jp

会員情報メニュー:SHOEISHA iD 翔泳社

Page Load Speed

6 sec in total

First Response

420 ms

Resources Loaded

5.4 sec

Page Rendered

181 ms

shoeisha.jp screenshot

About Website

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

SHOEISHA iDは、ひとつのメールアドレスとパスワードで、翔泳社が運営する関連サービスを利用することができる無料の会員制度です。「SHOEISHA iD」に登録いただきますと、翔泳社が運営する様々なジャンルの専門メディアの利用、およびイベントへの参加、会員特典などのサービスを受けることができます。また、登録された情報の閲覧/管理することができます。

Visit shoeisha.jp

Key Findings

We analyzed Shoeisha.jp page load time and found that the first response time was 420 ms and then it took 5.6 sec to load all DOM resources and completely render a web page. This is a poor result, as 70% of websites can load faster.

Performance Metrics

shoeisha.jp performance score

50

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value5.2 s

8/100

10%

LCP (Largest Contentful Paint)

Value5.2 s

23/100

25%

SI (Speed Index)

Value8.0 s

21/100

10%

TBT (Total Blocking Time)

Value320 ms

77/100

30%

CLS (Cumulative Layout Shift)

Value0.001

100/100

15%

TTI (Time to Interactive)

Value9.5 s

30/100

10%

Network Requests Diagram

shoeisha.jp

420 ms

www.shoeisha.co.jp

725 ms

jquery.min.js

33 ms

bootstrap.js

581 ms

application.js

293 ms

Our browser made a total of 56 requests to load all elements on the main page. We found that 2% of them (1 request) were addressed to the original Shoeisha.jp, 77% (43 requests) were made to Shoeisha.co.jp and 9% (5 requests) were made to Fonts.gstatic.com. The less responsive or slowest element that took the longest time to load (3 sec) relates to the external source Shoeisha.co.jp.

Page Optimization Overview & Recommendations

Page size can be reduced by 506.1 kB (18%)

Content Size

2.8 MB

After Optimization

2.3 MB

In fact, the total size of Shoeisha.jp main page is 2.8 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. 35% of websites need less resources to load. Images take 2.3 MB which makes up the majority of the site volume.

HTML Optimization

-80%

Potential reduce by 28.3 kB

  • Original 35.3 kB
  • After minification 25.7 kB
  • After compression 7.0 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 9.6 kB, which is 27% 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 28.3 kB or 80% of the original size.

Image Optimization

-4%

Potential reduce by 94.5 kB

  • Original 2.3 MB
  • After minification 2.2 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. SHOEISHA images are well optimized though.

JavaScript Optimization

-65%

Potential reduce by 64.3 kB

  • Original 99.4 kB
  • After minification 76.5 kB
  • After compression 35.1 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 64.3 kB or 65% of the original size.

CSS Optimization

-85%

Potential reduce by 319.0 kB

  • Original 376.3 kB
  • After minification 311.0 kB
  • After compression 57.4 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. Shoeisha.jp needs all CSS files to be minified and compressed as it can save up to 319.0 kB or 85% of the original size.

Requests Breakdown

Number of requests can be reduced by 21 (45%)

Requests Now

47

After Optimization

26

The browser has sent 47 CSS, Javascripts, AJAX and image requests in order to completely render the main page of SHOEISHA. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 7 to 1 for JavaScripts and from 8 to 1 for CSS and as a result speed up the page load time.

Accessibility Review

shoeisha.jp accessibility score

93

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.

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Heading elements are not in a sequentially-descending order

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

Links do not have a discernible name

Best Practices

shoeisha.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

High

Page has valid source maps

SEO Factors

shoeisha.jp SEO score

94

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 uses legible font sizes

High

Tap targets are not sized appropriately

Language and Encoding

  • Language Detected

    JA

  • Language Claimed

    N/A

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Shoeisha.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 Shoeisha.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 data is detected on the main page of SHOEISHA. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: