43.8 sec in total
1.3 sec
41.1 sec
1.5 sec
Click here to check amazing Ir 21 Vianet content for China. Otherwise, check out these important facts you probably never knew about ir.21vianet.com
The Investor Relations website contains information about VNET Group, Inc. 's business for stockholders, potential investors, and financial analysts.
Visit ir.21vianet.comWe analyzed Ir.21vianet.com page load time and found that the first response time was 1.3 sec and then it took 42.6 sec to load all DOM resources and completely render a web page. This is a poor result, as 95% of websites can load faster. Unfortunately, there were 4 request timeouts, which can generally increase the web page load time, as the browser stays idle while waiting for website response.
ir.21vianet.com performance score
name
value
score
weighting
Value14.6 s
0/100
10%
Value29.8 s
0/100
25%
Value40.9 s
0/100
10%
Value590 ms
50/100
30%
Value0.002
100/100
15%
Value28.8 s
0/100
10%
1280 ms
195 ms
222 ms
195 ms
3036 ms
Our browser made a total of 38 requests to load all elements on the main page. We found that 61% of them (23 requests) were addressed to the original Ir.21vianet.com, 32% (12 requests) were made to En.21vianet.com and 3% (1 request) were made to Apps.shareholder.com. The less responsive or slowest element that took the longest time to load (19.9 sec) relates to the external source En.21vianet.com.
Page size can be reduced by 205.7 kB (62%)
333.2 kB
127.4 kB
In fact, the total size of Ir.21vianet.com main page is 333.2 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. 15% of websites need less resources to load. Javascripts take 170.3 kB which makes up the majority of the site volume.
Potential reduce by 27.8 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 27.8 kB or 81% of the original size.
Potential reduce by 3.1 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. Ir 21 Vianet images are well optimized though.
Potential reduce by 113.0 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 113.0 kB or 66% of the original size.
Potential reduce by 61.9 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. Ir.21vianet.com needs all CSS files to be minified and compressed as it can save up to 61.9 kB or 80% of the original size.
Number of requests can be reduced by 23 (70%)
33
10
The browser has sent 33 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Ir 21 Vianet. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 4 to 1 for JavaScripts and from 6 to 1 for CSS and as a result speed up the page load time.
ir.21vianet.com
1280 ms
default.css
195 ms
wsh_default.css
222 ms
wsh_script_absent.css
195 ms
21vianet.css
3036 ms
content.css
3786 ms
jquery-1.9.1.min.js
19831 ms
modernizr-custom.js
6021 ms
polyfiller.js
19859 ms
21vianet.js
19859 ms
sh_scripts.js
187 ms
exLinks.js
213 ms
s_code_baseline_dev_v3.js
280 ms
wsh_print.css
995 ms
html-other.jpg
17789 ms
trackpage.aspx
260 ms
btn-search.png
123 ms
charts.dll
393 ms
header.jpg
3596 ms
logo.png
847 ms
sprite.png
5520 ms
leftArrow.png
857 ms
service.jpg
19930 ms
clear_print.gif
96 ms
clear_email.gif
91 ms
icon_share.gif
411 ms
share-close.gif
210 ms
delicious_icon.gif
92 ms
digg_icon.gif
1207 ms
facebook_icon.gif
209 ms
linkedin_icon.gif
1198 ms
twitter_icon.gif
410 ms
dots.gif
370 ms
icon_rss.gif
409 ms
profile.gif
436 ms
briefcasev2.gif
488 ms
icons-snapshot.gif
485 ms
s81912926335353
70 ms
ir.21vianet.com 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.
Navigation
These are opportunities to improve keyboard navigation in your application.
Impact
Issue
Heading elements are not in a sequentially-descending order
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
Links do not have a discernible name
ir.21vianet.com 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
User Experience
Impact
Issue
Serves images with low resolution
General
Impact
Issue
Detected JavaScript libraries
Missing source maps for large first-party JavaScript
ir.21vianet.com SEO score
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 uses legible font sizes
EN
N/A
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Ir.21vianet.com can be misinterpreted by Google and other search engines. Our service has detected that English is used on the page, and neither this language nor any other was claimed in <html> or <meta> tags. Our system also found out that Ir.21vianet.com 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.
ir.21vianet.com
Open Graph description is not detected on the main page of Ir 21 Vianet. 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: