Report Summary

  • 27

    Performance

    Renders faster than
    46% of other websites

  • 98

    Accessibility

    Visual factors better than
    that of 94% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 77

    SEO

    Google-friendlier than
    36% of websites

kanekoshobo.co.jp

株式会社 金子書房

Page Load Speed

5.9 sec in total

First Response

588 ms

Resources Loaded

5.1 sec

Page Rendered

226 ms

kanekoshobo.co.jp screenshot

About Website

Welcome to kanekoshobo.co.jp homepage info - get ready to check Kanekoshobo best content for Japan right away, or after learning these important things about kanekoshobo.co.jp

金子書房は心理と教育専門の出版社です。 書籍・雑誌・心理検査の出版、ワークショップの開催等を行っています。

Visit kanekoshobo.co.jp

Key Findings

We analyzed Kanekoshobo.co.jp page load time and found that the first response time was 588 ms and then it took 5.3 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

kanekoshobo.co.jp performance score

27

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.9 s

11/100

10%

LCP (Largest Contentful Paint)

Value21.9 s

0/100

25%

SI (Speed Index)

Value9.3 s

12/100

10%

TBT (Total Blocking Time)

Value1,010 ms

27/100

30%

CLS (Cumulative Layout Shift)

Value0.093

91/100

15%

TTI (Time to Interactive)

Value9.0 s

34/100

10%

Network Requests Diagram

www.kanekoshobo.co.jp

588 ms

www.kanekoshobo.co.jp

843 ms

default.css

163 ms

top.css

325 ms

jquery.mCustomScrollbar.css

811 ms

Our browser made a total of 55 requests to load all elements on the main page. We found that 80% of them (44 requests) were addressed to the original Kanekoshobo.co.jp, 11% (6 requests) were made to Google.com and 4% (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 Kanekoshobo.co.jp.

Page Optimization Overview & Recommendations

Page size can be reduced by 347.3 kB (20%)

Content Size

1.7 MB

After Optimization

1.4 MB

In fact, the total size of Kanekoshobo.co.jp main page is 1.7 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. 50% of websites need less resources to load. Images take 1.1 MB which makes up the majority of the site volume.

HTML Optimization

-83%

Potential reduce by 158.4 kB

  • Original 190.0 kB
  • After minification 166.9 kB
  • After compression 31.6 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 23.1 kB, which is 12% 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 158.4 kB or 83% of the original size.

Image Optimization

-2%

Potential reduce by 26.3 kB

  • Original 1.1 MB
  • After minification 1.1 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. Kanekoshobo images are well optimized though.

JavaScript Optimization

-32%

Potential reduce by 102.0 kB

  • Original 322.7 kB
  • After minification 320.9 kB
  • After compression 220.7 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 102.0 kB or 32% of the original size.

CSS Optimization

-82%

Potential reduce by 60.5 kB

  • Original 74.1 kB
  • After minification 61.4 kB
  • After compression 13.5 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. Kanekoshobo.co.jp needs all CSS files to be minified and compressed as it can save up to 60.5 kB or 82% of the original size.

Requests Breakdown

Number of requests can be reduced by 15 (29%)

Requests Now

52

After Optimization

37

The browser has sent 52 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Kanekoshobo. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 11 to 1 for JavaScripts and from 6 to 1 for CSS and as a result speed up the page load time.

Accessibility Review

kanekoshobo.co.jp accessibility score

98

Accessibility Issues

Internationalization and localization

These are opportunities to improve the interpretation of your content by users in different locales.

Impact

Issue

High

<html> element does not have a [lang] attribute

Best Practices

kanekoshobo.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

User Experience

Impact

Issue

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

SEO Factors

kanekoshobo.co.jp SEO score

77

Search Engine Optimization Advices

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 Kanekoshobo.co.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 Kanekoshobo.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 Kanekoshobo. 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: