Tools & Wizards About Us
ja.wikibooks.org screenshot

Report Summary

  • 80

    Performance

    Renders faster than
    86% of other websites

  • 98

    Accessibility

    Visual factors better than
    that of 94% of websites

  • 92

    Best Practices

    More advanced features
    available than in
    81% of websites

  • 92

    SEO

    Google-friendlier than
    75% of websites

ja.wikibooks.org

Wikibooks

Page Load Speed

281 ms in total

First Response

20 ms

Resources Loaded

261 ms

Page Rendered

0 ms

ja.wikibooks.org screenshot

About Website

Click here to check amazing Ja Wikibooks content for United States. Otherwise, check out these important facts you probably never knew about ja.wikibooks.org

Visit ja.wikibooks.org

Key Findings

We analyzed Ja.wikibooks.org page load time and found that the first response time was 20 ms and then it took 261 ms to load all DOM resources and completely render a web page. This is an excellent result, as only a small number of websites can load faster.

Performance Metrics

ja.wikibooks.org performance score

80

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.0 s

83/100

10%

LCP (Largest Contentful Paint)

Value3.5 s

63/100

25%

SI (Speed Index)

Value3.0 s

94/100

10%

TBT (Total Blocking Time)

Value320 ms

76/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value3.8 s

90/100

10%

Network Requests Diagram

%E3%83%A1%E3%82%A4%E3%83%B3%E3%83%9A%E3%83%BC%E3%82%B8

20 ms

load.php

12 ms

load.php

27 ms

load.php

81 ms

60px-Wikimedia_Community_Logo.svg.png

53 ms

Our browser made a total of 17 requests to load all elements on the main page. We found that 47% of them (8 requests) were addressed to the original Ja.wikibooks.org, 53% (9 requests) were made to Upload.wikimedia.org. The less responsive or slowest element that took the longest time to load (81 ms) belongs to the original domain Ja.wikibooks.org.

Page Optimization Overview & Recommendations

Page size can be reduced by 66.8 kB (49%)

Content Size

136.3 kB

After Optimization

69.5 kB

  • HTML
  • Images

In fact, the total size of Ja.wikibooks.org main page is 136.3 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. 20% of websites need less resources to load. HTML takes 80.3 kB which makes up the majority of the site volume.

HTML Optimization

-75%

Potential reduce by 60.0 kB

  • Original 80.3 kB
  • After minification 78.2 kB
  • After compression 20.3 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 60.0 kB or 75% of the original size.

Image Optimization

-12%

Potential reduce by 6.8 kB

  • Original 56.0 kB
  • After minification 49.2 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. Obviously, Ja Wikibooks needs image optimization as it can save up to 6.8 kB or 12% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

Requests Breakdown

We found no issues to fix!

Requests Now

16

After Optimization

16

  • Images
  • JavaScript
  • CSS

The browser has sent 16 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Ja Wikibooks. According to our analytics all requests are already optimized.

Network Requests Diagram

%E3%83%A1%E3%82%A4%E3%83%B3%E3%83%9A%E3%83%BC%E3%82%B8

%E3%83%A1%E3%82%A4%E3%83%B3%E3%83%9A%E3%83%BC%E3%82%B8

20 ms

load.php

load.php

12 ms

load.php

load.php

27 ms

load.php

load.php

81 ms

60px-Wikimedia_Community_Logo.svg.png

60px-Wikimedia_Community_Logo.svg.png

53 ms

wikibooks.png

wikibooks.png

26 ms

wikimedia-button.png

wikimedia-button.png

24 ms

poweredby_mediawiki_88x31.png

poweredby_mediawiki_88x31.png

25 ms

60px-Wikipedia-logo-v2.svg.png

60px-Wikipedia-logo-v2.svg.png

30 ms

60px-Wiktionary-logo.svg.png

60px-Wiktionary-logo.svg.png

29 ms

60px-Wikiquote-logo.svg.png

60px-Wikiquote-logo.svg.png

29 ms

60px-Wikispecies-logo.svg.png

60px-Wikispecies-logo.svg.png

31 ms

60px-Wikisource-logo.svg.png

60px-Wikisource-logo.svg.png

32 ms

54px-Commons-logo.svg.png

54px-Commons-logo.svg.png

35 ms

84px-Wikinews-logo.svg.png

84px-Wikinews-logo.svg.png

36 ms

72px-Wikiversity-logo.svg.png

72px-Wikiversity-logo.svg.png

34 ms

load.php

load.php

76 ms

Accessibility Review

ja.wikibooks.org accessibility score

98

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.

Best Practices

ja.wikibooks.org 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

High

Missing source maps for large first-party JavaScript

SEO Factors

ja.wikibooks.org SEO score

92

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

    JA

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Ja.wikibooks.org 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 Ja.wikibooks.org 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

ja.wikibooks.org

Open Graph description is not detected on the main page of Ja Wikibooks. 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: