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school.genron.co.jp screenshot

Report Summary

  • 37

    Performance

    Renders faster than
    57% of other websites

  • 96

    Accessibility

    Visual factors better than
    that of 89% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    36% of websites

  • 100

    SEO

    Google-friendlier than
    95% of websites

school.genron.co.jp

ゲンロンスクール

Page Load Speed

6.5 sec in total

First Response

2.1 sec

Resources Loaded

4.3 sec

Page Rendered

98 ms

school.genron.co.jp screenshot

About Website

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

ゲンロンスクール

Visit school.genron.co.jp

Key Findings

We analyzed School.genron.co.jp page load time and found that the first response time was 2.1 sec and then it took 4.4 sec to load all DOM resources and completely render a web page. This is a poor result, as 65% of websites can load faster.

Performance Metrics

school.genron.co.jp performance score

37

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.0 s

23/100

10%

LCP (Largest Contentful Paint)

Value6.5 s

9/100

25%

SI (Speed Index)

Value12.6 s

3/100

10%

TBT (Total Blocking Time)

Value650 ms

45/100

30%

CLS (Cumulative Layout Shift)

Value0.006

100/100

15%

TTI (Time to Interactive)

Value9.3 s

32/100

10%

Network Requests Diagram

school.genron.co.jp

2130 ms

wp-emoji-release.min.js

1579 ms

styles.css

537 ms

genericons.css

1635 ms

style.css

1916 ms

Our browser made a total of 37 requests to load all elements on the main page. We found that 54% of them (20 requests) were addressed to the original School.genron.co.jp, 8% (3 requests) were made to Platform.twitter.com and 8% (3 requests) were made to Staticxx.facebook.com. The less responsive or slowest element that took the longest time to load (2.1 sec) belongs to the original domain School.genron.co.jp.

Page Optimization Overview & Recommendations

Page size can be reduced by 324.0 kB (67%)

Content Size

483.7 kB

After Optimization

159.7 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of School.genron.co.jp main page is 483.7 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. 35% of websites need less resources to load. Javascripts take 266.6 kB which makes up the majority of the site volume.

HTML Optimization

-71%

Potential reduce by 16.7 kB

  • Original 23.5 kB
  • After minification 22.8 kB
  • After compression 6.7 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 16.7 kB or 71% of the original size.

Image Optimization

-32%

Potential reduce by 13.6 kB

  • Original 42.6 kB
  • After minification 29.0 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. Obviously, School Genron needs image optimization as it can save up to 13.6 kB or 32% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-66%

Potential reduce by 176.7 kB

  • Original 266.6 kB
  • After minification 264.4 kB
  • After compression 89.9 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 176.7 kB or 66% of the original size.

CSS Optimization

-77%

Potential reduce by 117.0 kB

  • Original 151.1 kB
  • After minification 128.1 kB
  • After compression 34.1 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. School.genron.co.jp needs all CSS files to be minified and compressed as it can save up to 117.0 kB or 77% of the original size.

Requests Breakdown

Number of requests can be reduced by 18 (50%)

Requests Now

36

After Optimization

18

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 36 CSS, Javascripts, AJAX and image requests in order to completely render the main page of School Genron. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 16 to 1 for JavaScripts and from 4 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

school.genron.co.jp

school.genron.co.jp

2130 ms

wp-emoji-release.min.js

wp-emoji-release.min.js

1579 ms

styles.css

styles.css

537 ms

genericons.css

genericons.css

1635 ms

style.css

style.css

1916 ms

jetpack.css

jetpack.css

1967 ms

jquery.js

jquery.js

1587 ms

jquery-migrate.min.js

jquery-migrate.min.js

1376 ms

jquery.form.min.js

jquery.form.min.js

1652 ms

scripts.js

scripts.js

1586 ms

devicepx-jetpack.js

devicepx-jetpack.js

4 ms

skip-link-focus-fix.js

skip-link-focus-fix.js

1598 ms

main.js

main.js

1656 ms

comment-reply.min.js

comment-reply.min.js

1580 ms

wp-embed.min.js

wp-embed.min.js

1596 ms

e-201611.js

e-201611.js

4 ms

school_logo_large.png

school_logo_large.png

285 ms

gcls_title.png

gcls_title.png

285 ms

critics_title.png

critics_title.png

285 ms

chernobyl_tour_logo.png

chernobyl_tour_logo.png

367 ms

sf_title.png

sf_title.png

389 ms

analytics.js

analytics.js

9 ms

school_logo.png

school_logo.png

451 ms

widgets.js

widgets.js

78 ms

collect

collect

11 ms

all.js

all.js

52 ms

button.0308b81ff1714e446f674b5b9793f2cd.js

button.0308b81ff1714e446f674b5b9793f2cd.js

140 ms

g.gif

g.gif

23 ms

87 ms

xd_arbiter.php

xd_arbiter.php

41 ms

xd_arbiter.php

xd_arbiter.php

56 ms

tweet_button.b9740740e0bcf9b0657c5b11bd4388da.ja.html

tweet_button.b9740740e0bcf9b0657c5b11bd4388da.ja.html

46 ms

xd_arbiter.php

xd_arbiter.php

5 ms

like.php

like.php

60 ms

wy1X4hBW7e7.js

wy1X4hBW7e7.js

38 ms

LVx-xkvaJ0b.png

LVx-xkvaJ0b.png

17 ms

jot

jot

93 ms

Accessibility Review

school.genron.co.jp accessibility score

96

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

Links do not have a discernible name

Best Practices

school.genron.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

school.genron.co.jp SEO score

100

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

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 School.genron.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 School.genron.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

school.genron.co.jp

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