7.5 sec in total
607 ms
6.3 sec
605 ms
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.cnWe 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.
400.cn performance score
name
value
score
weighting
Value4.3 s
18/100
10%
Value4.8 s
31/100
25%
Value6.8 s
34/100
10%
Value10 ms
100/100
30%
Value0
100/100
15%
Value5.5 s
70/100
10%
607 ms
845 ms
1171 ms
364 ms
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 size can be reduced by 153.8 kB (26%)
595.5 kB
441.7 kB
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.
Potential reduce by 112.2 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 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.
Potential reduce by 211 B
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.
Potential reduce by 22.3 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.
Potential reduce by 19.0 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. 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.
Number of requests can be reduced by 32 (48%)
67
35
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.
400.cn
607 ms
400.cn
845 ms
www.400.cn
1171 ms
cui.css
364 ms
style.css
548 ms
hdr-ftr.css
739 ms
lib-md.css
753 ms
zhl.css
759 ms
m-mzw.css
761 ms
qxm.css
827 ms
m-yy.css
852 ms
jquery.js
935 ms
swiper-bundle.min.css
951 ms
swiper-bundle.min.js
1153 ms
clipboard.min.js
777 ms
partial_kf.asp
862 ms
common.js
895 ms
logo-m1.png
189 ms
icon-m1.png
189 ms
logo-m2.png
190 ms
bgpic-m1.jpg
423 ms
icon-m1.png
205 ms
pic-m1.png
190 ms
icon-m4.png
372 ms
icon-m2-1.png
373 ms
icon-m3-2.png
373 ms
icon-m5.png
371 ms
pic-m2.png
817 ms
icon-m7.png
554 ms
icon-m8-1.png
555 ms
icon-m8-2.png
555 ms
icon-m11.png
556 ms
pic-m3.png
632 ms
icon-m9.png
738 ms
pic-m4.png
925 ms
icon-num-1.png
740 ms
icon-num-2.png
740 ms
icon-num-3.png
845 ms
icon-num-4.png
923 ms
icon1.png
928 ms
icon-m10.png
929 ms
qrcode.png
1024 ms
pic-m5.png
1059 ms
close.png
1111 ms
line.png
1115 ms
tj.gif
1118 ms
szicbok.gif
1117 ms
label_sm_90020.png
1231 ms
kxwz.jpg
1272 ms
smaq.jpg
1296 ms
sm_83x30.png
1300 ms
pic-m6.png
1187 ms
icon-m17.png
1188 ms
push.js
1140 ms
push.js
653 ms
hm.js
2121 ms
icon-m13.png
1254 ms
newicon.png
1302 ms
icon-m14.png
1300 ms
icon-m21.png
1303 ms
wx2code.png
1296 ms
icon-m15.png
1129 ms
icon-m19.png
1273 ms
icon-m16.png
1300 ms
icon-m20.png
1329 ms
qq2code.png
1258 ms
icon-m18.png
1132 ms
qq.png
1132 ms
wx.png
1293 ms
hm.gif
344 ms
400.cn accessibility score
Contrast
These are opportunities to improve the legibility of your content.
Impact
Issue
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
Image elements do not have [alt] attributes
Form elements do not have associated labels
Links do not have a discernible name
Best practices
These items highlight common accessibility best practices.
Impact
Issue
[user-scalable="no"] is used in the <meta name="viewport"> element or the [maximum-scale] attribute is less than 5.
400.cn best practices score
Trust and Safety
Impact
Issue
Does not use HTTPS
Includes front-end JavaScript libraries with known security vulnerabilities
Ensure CSP is effective against XSS attacks
General
Impact
Issue
Detected JavaScript libraries
Page has valid source maps
400.cn SEO score
Crawling and Indexing
To appear in search results, crawlers need access to your app.
Impact
Issue
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
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
Document doesn't use legible font sizes
Tap targets are not sized appropriately
ZH
ZH
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.
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: