Report Summary

  • 17

    Performance

    Renders faster than
    32% of other websites

  • 70

    Accessibility

    Visual factors better than
    that of 36% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    36% of websites

  • 80

    SEO

    Google-friendlier than
    42% of websites

joho-gakushu.or.jp

全日本情報学習振興協会、個人情報保護、オンライン試験システムの、全情協

Page Load Speed

4 sec in total

First Response

768 ms

Resources Loaded

2.9 sec

Page Rendered

332 ms

joho-gakushu.or.jp screenshot

About Website

Visit joho-gakushu.or.jp now to see the best up-to-date Joho Gakushu content for Japan and also check out these interesting facts you probably never knew about joho-gakushu.or.jp

全日本情報学習振興協会は、平成11年文部科学省、生涯学習局所管の財団法人として設立、以後20年以上検定試験を開催、150万人以上の合格者がいます。パソコン検定、個人情報保護士、情報セキュリティ検定、マイナンバー検定、働き方検定、DX検定、企業危機検定、労働法検定、民法検定、会社法検定を開催、オンライン検定試験も実施中。

Visit joho-gakushu.or.jp

Key Findings

We analyzed Joho-gakushu.or.jp page load time and found that the first response time was 768 ms and then it took 3.3 sec to load all DOM resources and completely render a web page. This is a poor result, as 55% of websites can load faster.

Performance Metrics

joho-gakushu.or.jp performance score

17

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value5.6 s

5/100

10%

LCP (Largest Contentful Paint)

Value27.0 s

0/100

25%

SI (Speed Index)

Value11.7 s

4/100

10%

TBT (Total Blocking Time)

Value3,420 ms

2/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value26.6 s

0/100

10%

Network Requests Diagram

joho-gakushu.or.jp

768 ms

2013kakestyle.css

514 ms

roll.js

354 ms

add.php

753 ms

ga.js

95 ms

Our browser made a total of 48 requests to load all elements on the main page. We found that 73% of them (35 requests) were addressed to the original Joho-gakushu.or.jp, 6% (3 requests) were made to S.ytimg.com and 4% (2 requests) were made to 3939kaiseki.com. The less responsive or slowest element that took the longest time to load (1.6 sec) belongs to the original domain Joho-gakushu.or.jp.

Page Optimization Overview & Recommendations

Page size can be reduced by 397.9 kB (47%)

Content Size

847.1 kB

After Optimization

449.3 kB

In fact, the total size of Joho-gakushu.or.jp main page is 847.1 kB. This result falls beyond the top 1M of websites and identifies a large and not optimized web page that may take ages to load. 40% of websites need less resources to load. Images take 315.6 kB which makes up the majority of the site volume.

HTML Optimization

-82%

Potential reduce by 29.7 kB

  • Original 36.1 kB
  • After minification 28.8 kB
  • After compression 6.4 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 7.3 kB, which is 20% 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 29.7 kB or 82% of the original size.

Image Optimization

-2%

Potential reduce by 6.4 kB

  • Original 315.6 kB
  • After minification 309.2 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. Joho Gakushu images are well optimized though.

JavaScript Optimization

-60%

Potential reduce by 136.0 kB

  • Original 225.3 kB
  • After minification 225.1 kB
  • After compression 89.3 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 136.0 kB or 60% of the original size.

CSS Optimization

-84%

Potential reduce by 225.7 kB

  • Original 270.2 kB
  • After minification 266.8 kB
  • After compression 44.5 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. Joho-gakushu.or.jp needs all CSS files to be minified and compressed as it can save up to 225.7 kB or 84% of the original size.

Requests Breakdown

Number of requests can be reduced by 17 (38%)

Requests Now

45

After Optimization

28

The browser has sent 45 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Joho Gakushu. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 6 to 1 for JavaScripts and as a result speed up the page load time.

Accessibility Review

joho-gakushu.or.jp accessibility score

70

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.

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

<dl>'s do not contain only properly-ordered <dt> and <dd> groups, <script>, <template> or <div> elements.

High

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

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

Image elements do not have [alt] attributes

High

Links do not have a discernible name

Best Practices

joho-gakushu.or.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

joho-gakushu.or.jp SEO score

80

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

Content Best Practices

Format your HTML in a way that enables crawlers to better understand your app’s content.

Impact

Issue

High

Image elements do not have [alt] attributes

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 Joho-gakushu.or.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 Joho-gakushu.or.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 Joho Gakushu. 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: