Tools & Wizards About Us
400.cn screenshot

Report Summary

  • 65

    Performance

    Renders faster than
    78% of other websites

  • 71

    Accessibility

    Visual factors better than
    that of 37% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    56% of websites

  • 76

    SEO

    Google-friendlier than
    35% of websites

400.cn

易号网400电话_400电话申请_400电话办理_www.400.cn

Page Load Speed

7.5 sec in total

First Response

607 ms

Resources Loaded

6.3 sec

Page Rendered

605 ms

400.cn screenshot

About Website

Click here to check amazing 400 content for Japan. Otherwise, check out these important facts you probably never knew about 400.cn

400电话首选易号网(www.400.cn),企业400电话申请办理中心,三大运营商渠道专业受理,确保400电话开通迅速，售后服务完善。全国受理热线:400-966-9666。

Visit 400.cn

Key Findings

We analyzed 400.cn page load time and found that the first response time was 607 ms and then it took 6.9 sec to load all DOM resources and completely render a web page. This is a poor result, as 80% of websites can load faster.

Performance Metrics

400.cn performance score

65

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.3 s

18/100

10%

LCP (Largest Contentful Paint)

Value4.8 s

31/100

25%

SI (Speed Index)

Value6.8 s

34/100

10%

TBT (Total Blocking Time)

Value10 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value5.5 s

70/100

10%

Network Requests Diagram

400.cn

607 ms

400.cn

845 ms

www.400.cn

1171 ms

cui.css

364 ms

style.css

548 ms

Our browser made a total of 70 requests to load all elements on the main page. We found that 94% of them (66 requests) were addressed to the original 400.cn, 3% (2 requests) were made to Hm.baidu.com and 1% (1 request) were made to Zz.bdstatic.com. The less responsive or slowest element that took the longest time to load (2.1 sec) relates to the external source Hm.baidu.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 153.8 kB (26%)

Content Size

595.5 kB

After Optimization

441.7 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of 400.cn main page is 595.5 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. 30% of websites need less resources to load. Images take 325.6 kB which makes up the majority of the site volume.

HTML Optimization

-88%

Potential reduce by 112.2 kB

  • Original 128.2 kB
  • After minification 81.3 kB
  • After compression 16.0 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 46.9 kB, which is 37% 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 112.2 kB or 88% of the original size.

Image Optimization

-0%

Potential reduce by 211 B

  • Original 325.6 kB
  • After minification 325.4 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. 400 images are well optimized though.

JavaScript Optimization

-23%

Potential reduce by 22.3 kB

  • Original 97.1 kB
  • After minification 97.1 kB
  • After compression 74.8 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 22.3 kB or 23% of the original size.

CSS Optimization

-43%

Potential reduce by 19.0 kB

  • Original 44.5 kB
  • After minification 44.5 kB
  • After compression 25.5 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. 400.cn needs all CSS files to be minified and compressed as it can save up to 19.0 kB or 43% of the original size.

Requests Breakdown

Number of requests can be reduced by 32 (48%)

Requests Now

67

After Optimization

35

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 67 CSS, Javascripts, AJAX and image requests in order to completely render the main page of 400. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 7 to 1 for JavaScripts and from 9 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

400.cn

400.cn

607 ms

400.cn

400.cn

845 ms

www.400.cn

www.400.cn

1171 ms

cui.css

cui.css

364 ms

style.css

style.css

548 ms

hdr-ftr.css

hdr-ftr.css

739 ms

lib-md.css

lib-md.css

753 ms

zhl.css

zhl.css

759 ms

m-mzw.css

m-mzw.css

761 ms

qxm.css

qxm.css

827 ms

m-yy.css

m-yy.css

852 ms

jquery.js

jquery.js

935 ms

swiper-bundle.min.css

swiper-bundle.min.css

951 ms

swiper-bundle.min.js

swiper-bundle.min.js

1153 ms

clipboard.min.js

clipboard.min.js

777 ms

partial_kf.asp

partial_kf.asp

862 ms

common.js

common.js

895 ms

logo-m1.png

logo-m1.png

189 ms

icon-m1.png

icon-m1.png

189 ms

logo-m2.png

logo-m2.png

190 ms

bgpic-m1.jpg

bgpic-m1.jpg

423 ms

icon-m1.png

icon-m1.png

205 ms

pic-m1.png

pic-m1.png

190 ms

icon-m4.png

icon-m4.png

372 ms

icon-m2-1.png

icon-m2-1.png

373 ms

icon-m3-2.png

icon-m3-2.png

373 ms

icon-m5.png

icon-m5.png

371 ms

pic-m2.png

pic-m2.png

817 ms

icon-m7.png

icon-m7.png

554 ms

icon-m8-1.png

icon-m8-1.png

555 ms

icon-m8-2.png

icon-m8-2.png

555 ms

icon-m11.png

icon-m11.png

556 ms

pic-m3.png

pic-m3.png

632 ms

icon-m9.png

icon-m9.png

738 ms

pic-m4.png

pic-m4.png

925 ms

icon-num-1.png

icon-num-1.png

740 ms

icon-num-2.png

icon-num-2.png

740 ms

icon-num-3.png

icon-num-3.png

845 ms

icon-num-4.png

icon-num-4.png

923 ms

icon1.png

icon1.png

928 ms

icon-m10.png

icon-m10.png

929 ms

qrcode.png

qrcode.png

1024 ms

pic-m5.png

pic-m5.png

1059 ms

close.png

close.png

1111 ms

line.png

line.png

1115 ms

tj.gif

tj.gif

1118 ms

szicbok.gif

szicbok.gif

1117 ms

label_sm_90020.png

label_sm_90020.png

1231 ms

kxwz.jpg

kxwz.jpg

1272 ms

smaq.jpg

smaq.jpg

1296 ms

sm_83x30.png

sm_83x30.png

1300 ms

pic-m6.png

pic-m6.png

1187 ms

icon-m17.png

icon-m17.png

1188 ms

push.js

push.js

1140 ms

push.js

push.js

653 ms

hm.js

hm.js

2121 ms

icon-m13.png

icon-m13.png

1254 ms

newicon.png

newicon.png

1302 ms

icon-m14.png

icon-m14.png

1300 ms

icon-m21.png

icon-m21.png

1303 ms

wx2code.png

wx2code.png

1296 ms

icon-m15.png

icon-m15.png

1129 ms

icon-m19.png

icon-m19.png

1273 ms

icon-m16.png

icon-m16.png

1300 ms

icon-m20.png

icon-m20.png

1329 ms

qq2code.png

qq2code.png

1258 ms

icon-m18.png

icon-m18.png

1132 ms

qq.png

qq.png

1132 ms

wx.png

wx.png

1293 ms

hm.gif

hm.gif

344 ms

Accessibility Review

400.cn accessibility score

71

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

Image elements do not have [alt] attributes

High

Form elements do not have associated labels

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

400.cn best practices score

83

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

General

Impact

Issue

Low

Detected JavaScript libraries

High

Page has valid source maps

SEO Factors

400.cn SEO score

76

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

Content Best Practices

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

Impact

Issue

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 doesn't use legible font sizes

High

Tap targets are not sized appropriately

Language and Encoding

  • Language Detected

    ZH

  • Language Claimed

    ZH

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise 400.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 400.cn 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

400.cn

Open Graph description is not detected on the main page of 400. 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: