Tools & Wizards About Us
c4it.cn screenshot

Report Summary

  • 100

    Performance

    Renders faster than
    97% of other websites

  • 100

    Accessibility

    Visual factors better than
    that of 97% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    56% of websites

  • 73

    SEO

    Google-friendlier than
    31% of websites

c4it.cn

前端开发学习记

Page Load Speed

26.1 sec in total

First Response

12.5 sec

Resources Loaded

13.5 sec

Page Rendered

142 ms

c4it.cn screenshot

About Website

Visit c4it.cn now to see the best up-to-date C 4 It content and also check out these interesting facts you probably never knew about c4it.cn

前端开发学习记

Visit c4it.cn

Key Findings

We analyzed C4it.cn page load time and found that the first response time was 12.5 sec and then it took 13.6 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

c4it.cn performance score

100

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value0.9 s

100/100

10%

LCP (Largest Contentful Paint)

Value0.9 s

100/100

25%

SI (Speed Index)

Value1.7 s

100/100

10%

TBT (Total Blocking Time)

Value0 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value0.9 s

100/100

10%

Network Requests Diagram

c4it.cn

12480 ms

logo.jpg

1233 ms

inf.js

288 ms

tongji.gif

970 ms

main.js

31 ms

Our browser made a total of 7 requests to load all elements on the main page. We found that 29% of them (2 requests) were addressed to the original C4it.cn, 43% (3 requests) were made to A.alimama.cn and 14% (1 request) were made to Img.tongji.linezing.com. The less responsive or slowest element that took the longest time to load (12.5 sec) belongs to the original domain C4it.cn.

Page Optimization Overview & Recommendations

Page size can be reduced by 2.5 kB (20%)

Content Size

12.4 kB

After Optimization

9.9 kB

  • HTML
  • Images

In fact, the total size of C4it.cn main page is 12.4 kB. This result falls within a vast category (top 1 000 000) of heavyweight, probably not optimized, and thus slow loading web pages. Only a small number of websites need less resources to load. Images take 7.6 kB which makes up the majority of the site volume.

HTML Optimization

-52%

Potential reduce by 2.5 kB

  • Original 4.8 kB
  • After minification 4.7 kB
  • After compression 2.3 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 2.5 kB or 52% of the original size.

Image Optimization

-0%

Potential reduce by 0 B

  • Original 7.6 kB
  • After minification 7.6 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. C 4 It images are well optimized though.

Requests Breakdown

We found no issues to fix!

Requests Now

5

After Optimization

5

  • Images
  • JavaScript

The browser has sent 5 CSS, Javascripts, AJAX and image requests in order to completely render the main page of C 4 It. According to our analytics all requests are already optimized.

Network Requests Diagram

c4it.cn

c4it.cn

12480 ms

logo.jpg

logo.jpg

1233 ms

inf.js

inf.js

288 ms

tongji.gif

tongji.gif

970 ms

main.js

main.js

31 ms

g.js

g.js

31 ms

alimama.php

alimama.php

4 ms

Accessibility Review

c4it.cn accessibility score

100

Accessibility Issues

Best Practices

c4it.cn best practices score

83

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

SEO Factors

c4it.cn SEO score

73

Search Engine Optimization Advices

Language and Encoding

  • Language Detected

    ZH

  • Language Claimed

    ZH

  • Encoding

    GB2312

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise C4it.cn can be misinterpreted by Google and other search engines. Our service has detected that Chinese is used on the page, and it matches the claimed language. Our system also found out that C4it.cn main page’s claimed encoding is gb2312. 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

c4it.cn

Open Graph description is not detected on the main page of C 4 It. 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: