Report Summary

  • 11

    Performance

    Renders faster than
    24% of other websites

  • 80

    Accessibility

    Visual factors better than
    that of 50% of websites

  • 92

    Best Practices

    More advanced features
    available than in
    82% of websites

  • 92

    SEO

    Google-friendlier than
    75% of websites

shueisha.co.jp

集英社 ― SHUEISHA ―

Page Load Speed

6.8 sec in total

First Response

562 ms

Resources Loaded

6 sec

Page Rendered

177 ms

shueisha.co.jp screenshot

About Website

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

集英社公式サイト総合トップページ。集英社の雑誌、書籍、コミックなど全ての出版物に関する情報や各サイトへアクセスできます。

Visit shueisha.co.jp

Key Findings

We analyzed Shueisha.co.jp page load time and found that the first response time was 562 ms and then it took 6.2 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

shueisha.co.jp performance score

11

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value5.6 s

6/100

10%

LCP (Largest Contentful Paint)

Value10.5 s

0/100

25%

SI (Speed Index)

Value58.3 s

0/100

10%

TBT (Total Blocking Time)

Value8,420 ms

0/100

30%

CLS (Cumulative Layout Shift)

Value0.184

66/100

15%

TTI (Time to Interactive)

Value65.1 s

0/100

10%

Network Requests Diagram

shueisha.co.jp

562 ms

www.shueisha.co.jp

1147 ms

import.css

382 ms

common.js

384 ms

fontChange.js

567 ms

Our browser made a total of 118 requests to load all elements on the main page. We found that 98% of them (116 requests) were addressed to the original Shueisha.co.jp, 2% (2 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (1.9 sec) belongs to the original domain Shueisha.co.jp.

Page Optimization Overview & Recommendations

Page size can be reduced by 626.7 kB (47%)

Content Size

1.3 MB

After Optimization

698.5 kB

In fact, the total size of Shueisha.co.jp main page is 1.3 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. 35% of websites need less resources to load. Images take 565.6 kB which makes up the majority of the site volume.

HTML Optimization

-79%

Potential reduce by 29.7 kB

  • Original 37.8 kB
  • After minification 33.9 kB
  • After compression 8.1 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 29.7 kB or 79% of the original size.

Image Optimization

-6%

Potential reduce by 36.7 kB

  • Original 565.6 kB
  • After minification 528.9 kB

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. SHUEISHA images are well optimized though.

JavaScript Optimization

-68%

Potential reduce by 220.0 kB

  • Original 325.5 kB
  • After minification 297.8 kB
  • After compression 105.5 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 220.0 kB or 68% of the original size.

CSS Optimization

-86%

Potential reduce by 340.4 kB

  • Original 396.5 kB
  • After minification 371.6 kB
  • After compression 56.1 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. Shueisha.co.jp needs all CSS files to be minified and compressed as it can save up to 340.4 kB or 86% of the original size.

Requests Breakdown

Number of requests can be reduced by 42 (36%)

Requests Now

116

After Optimization

74

The browser has sent 116 CSS, Javascripts, AJAX and image requests in order to completely render the main page of SHUEISHA. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 15 to 1 for JavaScripts and from 9 to 1 for CSS and as a result speed up the page load time.

Accessibility Review

shueisha.co.jp accessibility score

80

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

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.

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>).

High

List items (<li>) are not contained within <ul> or <ol> parent elements.

Best Practices

shueisha.co.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

shueisha.co.jp SEO score

92

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

    JA

  • Language Claimed

    JA

  • Encoding

    SHIFT_JIS

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Shueisha.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 Shueisha.co.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 SHUEISHA. 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: