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c2j.co.jp screenshot

Report Summary

  • 59

    Performance

    Renders faster than
    75% of other websites

  • 60

    Accessibility

    Visual factors better than
    that of 26% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 77

    SEO

    Google-friendlier than
    36% of websites

c2j.co.jp

【越境ECビジネス】株式会社C2Jジャパン——日中間最大級ECサイト「C2J.jp」「Cmall」の運営会社

Page Load Speed

6.3 sec in total

First Response

1.1 sec

Resources Loaded

5 sec

Page Rendered

193 ms

c2j.co.jp screenshot

About Website

Welcome to c2j.co.jp homepage info - get ready to check C2J best content for China right away, or after learning these important things about c2j.co.jp

日中間に特化した越境ECビジネス支援

Visit c2j.co.jp

Key Findings

We analyzed C2j.co.jp page load time and found that the first response time was 1.1 sec and then it took 5.2 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

c2j.co.jp performance score

59

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.4 s

38/100

10%

LCP (Largest Contentful Paint)

Value6.0 s

13/100

25%

SI (Speed Index)

Value8.9 s

15/100

10%

TBT (Total Blocking Time)

Value150 ms

95/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value5.9 s

65/100

10%

Network Requests Diagram

c2j.co.jp

1055 ms

www.c2j.co.jp

729 ms

xb.css

244 ms

common.css

425 ms

index_jp.css

441 ms

Our browser made a total of 30 requests to load all elements on the main page. We found that 93% of them (28 requests) were addressed to the original C2j.co.jp, 3% (1 request) were made to Js.tongji.linezing.com and 3% (1 request) were made to Dt.tongji.linezing.com. The less responsive or slowest element that took the longest time to load (2 sec) belongs to the original domain C2j.co.jp.

Page Optimization Overview & Recommendations

Page size can be reduced by 408.3 kB (39%)

Content Size

1.0 MB

After Optimization

634.9 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of C2j.co.jp main page is 1.0 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. 25% of websites need less resources to load. Images take 706.8 kB which makes up the majority of the site volume.

HTML Optimization

-81%

Potential reduce by 13.5 kB

  • Original 16.7 kB
  • After minification 10.3 kB
  • After compression 3.2 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 6.4 kB, which is 38% 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 13.5 kB or 81% of the original size.

Image Optimization

-18%

Potential reduce by 127.2 kB

  • Original 706.8 kB
  • After minification 579.6 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, C2J needs image optimization as it can save up to 127.2 kB or 18% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-84%

Potential reduce by 250.0 kB

  • Original 297.1 kB
  • After minification 160.8 kB
  • After compression 47.1 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 250.0 kB or 84% of the original size.

CSS Optimization

-78%

Potential reduce by 17.7 kB

  • Original 22.7 kB
  • After minification 17.8 kB
  • After compression 5.0 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. C2j.co.jp needs all CSS files to be minified and compressed as it can save up to 17.7 kB or 78% of the original size.

Requests Breakdown

Number of requests can be reduced by 12 (43%)

Requests Now

28

After Optimization

16

  • Images
  • JavaScript
  • CSS

The browser has sent 28 CSS, Javascripts, AJAX and image requests in order to completely render the main page of C2J. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 10 to 1 for JavaScripts and from 4 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

c2j.co.jp

c2j.co.jp

1055 ms

www.c2j.co.jp

www.c2j.co.jp

729 ms

xb.css

xb.css

244 ms

common.css

common.css

425 ms

index_jp.css

index_jp.css

441 ms

index_jp-public.css

index_jp-public.css

448 ms

jquery.js

jquery.js

1821 ms

yii.js

yii.js

471 ms

jquery.json-2.4.min.js

jquery.json-2.4.min.js

478 ms

base64.js

base64.js

629 ms

xbase.js

xbase.js

653 ms

xb.js

xb.js

665 ms

tongji.js

tongji.js

697 ms

jquery.easing.min.js

jquery.easing.min.js

673 ms

index-srvpr.js

index-srvpr.js

718 ms

index-public.js

index-public.js

840 ms

logo_jp.png

logo_jp.png

868 ms

index-banner.jpg

index-banner.jpg

1999 ms

indexjp-b2b.png

indexjp-b2b.png

1120 ms

indexjp-b2b2c.png

indexjp-b2b2c.png

1197 ms

indexjp-b2c.png

indexjp-b2c.png

1259 ms

rmt_select1.png

rmt_select1.png

645 ms

index-facebook.png

index-facebook.png

863 ms

index-twitter.png

index-twitter.png

905 ms

index-ameba.png

index-ameba.png

998 ms

tongji.do

tongji.do

1409 ms

index-banner-1-bg.png

index-banner-1-bg.png

1203 ms

index-banner-1-img1.png

index-banner-1-img1.png

632 ms

index-banner-1-img2.png

index-banner-1-img2.png

689 ms

index-banner-1-text_jp.png

index-banner-1-text_jp.png

450 ms

Accessibility Review

c2j.co.jp accessibility score

60

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

Document doesn't have a <title> element

High

Image elements do not have [alt] attributes

High

Links do not have a discernible name

Best practices

These items highlight common accessibility best practices.

Impact

Issue

High

[user-scalable="no"] is used in the <meta name="viewport"> element or the [maximum-scale] attribute is less than 5.

Best Practices

c2j.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

High

Browser errors were logged to the console

SEO Factors

c2j.co.jp SEO score

77

Search Engine Optimization Advices

Content Best Practices

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

Impact

Issue

High

Document doesn't have a <title> element

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

Language and Encoding

  • Language Detected

    JA

  • Language Claimed

    EN

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise C2j.co.jp can be misinterpreted by Google and other search engines. Our service has detected that Japanese is used on the page, and it does not match the claimed English language. Our system also found out that C2j.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

c2j.co.jp

Open Graph description is not detected on the main page of C2J. 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: