Tools & Wizards About Us

Report Summary

  • 14

    Performance

    Renders faster than
    26% of other websites

  • 75

    Accessibility

    Visual factors better than
    that of 41% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 71

    SEO

    Google-friendlier than
    30% of websites

china-dojo.jp

中国語オンライン会話教室/チャイナ道場

Page Load Speed

15 sec in total

First Response

594 ms

Resources Loaded

13.8 sec

Page Rendered

578 ms

About Website

Click here to check amazing China Dojo content for United States. Otherwise, check out these important facts you probably never knew about china-dojo.jp

チャイナ道場は中国語をSkype（スカイプ）で簡単に学べるオンライン会話教室サービスです。入会金は無料！日本語対応可能な中国人講師と５０分のマンツーマンレッスンを好きな時間に受けられます。５０分のレッスンが業界最安値の４２０円から。レッスンは早朝７時から深夜２４時まで。中国語検定、HSK対策コースあり。訪日中国人向け接客フレーズの習得にも最適です。ただいま無料体験実施中！

Visit china-dojo.jp

Key Findings

We analyzed China-dojo.jp page load time and found that the first response time was 594 ms and then it took 14.4 sec to load all DOM resources and completely render a web page. This is a poor result, as 90% of websites can load faster.

Performance Metrics

china-dojo.jp performance score

14

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value7.2 s

1/100

10%

LCP (Largest Contentful Paint)

Value25.9 s

0/100

25%

SI (Speed Index)

Value24.7 s

0/100

10%

TBT (Total Blocking Time)

Value5,360 ms

0/100

30%

CLS (Cumulative Layout Shift)

Value0.099

90/100

15%

TTI (Time to Interactive)

Value35.0 s

0/100

10%

Network Requests Diagram

china-dojo.jp

594 ms

www.china-dojo.jp

631 ms

www.china-dojo.jp

1235 ms

common.css

962 ms

home.css

586 ms

Our browser made a total of 113 requests to load all elements on the main page. We found that 59% of them (67 requests) were addressed to the original China-dojo.jp, 11% (12 requests) were made to I.ytimg.com and 11% (12 requests) were made to Youtube-nocookie.com. The less responsive or slowest element that took the longest time to load (9.7 sec) belongs to the original domain China-dojo.jp.

Page Optimization Overview & Recommendations

Page size can be reduced by 245.2 kB (20%)

Content Size

1.2 MB

After Optimization

989.3 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of China-dojo.jp main page is 1.2 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. 70% of websites need less resources to load. Images take 723.0 kB which makes up the majority of the site volume.

HTML Optimization

-81%

Potential reduce by 45.2 kB

  • Original 55.5 kB
  • After minification 43.8 kB
  • After compression 10.3 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. This page needs HTML code to be minified as it can gain 11.7 kB, which is 21% 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 45.2 kB or 81% of the original size.

Image Optimization

-7%

Potential reduce by 48.3 kB

  • Original 723.0 kB
  • After minification 674.7 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. China Dojo images are well optimized though.

JavaScript Optimization

-31%

Potential reduce by 105.4 kB

  • Original 341.6 kB
  • After minification 338.3 kB
  • After compression 236.2 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 105.4 kB or 31% of the original size.

CSS Optimization

-40%

Potential reduce by 46.2 kB

  • Original 114.4 kB
  • After minification 100.1 kB
  • After compression 68.1 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. China-dojo.jp needs all CSS files to be minified and compressed as it can save up to 46.2 kB or 40% of the original size.

Requests Breakdown

Number of requests can be reduced by 20 (19%)

Requests Now

108

After Optimization

88

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 108 CSS, Javascripts, AJAX and image requests in order to completely render the main page of China Dojo. 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 6 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

Accessibility Review

china-dojo.jp accessibility score

75

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.

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

<frame> or <iframe> elements do not have a title

High

Form elements do not have associated labels

High

Links do not have a discernible name

Best Practices

china-dojo.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

High

Page has valid source maps

SEO Factors

china-dojo.jp SEO score

71

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

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 China-dojo.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 China-dojo.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 data is detected on the main page of China Dojo. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: