15.4 sec in total
4.1 sec
11.1 sec
138 ms
Click here to check amazing Cdtu content for China. Otherwise, check out these important facts you probably never knew about cdtu.edu.cn
亿邮电子邮件系统,亿邮邮件整体解决方案
Visit cdtu.edu.cnWe analyzed Cdtu.edu.cn page load time and found that the first response time was 4.1 sec and then it took 11.3 sec to load all DOM resources and completely render a web page. This is a poor result, as 90% of websites can load faster.
cdtu.edu.cn performance score
name
value
score
weighting
Value2.5 s
68/100
10%
Value2.5 s
90/100
25%
Value7.5 s
27/100
10%
Value110 ms
98/100
30%
Value0.014
100/100
15%
Value2.6 s
98/100
10%
4126 ms
543 ms
494 ms
547 ms
860 ms
Our browser made a total of 47 requests to load all elements on the main page. We found that 96% of them (45 requests) were addressed to the original Cdtu.edu.cn, 4% (2 requests) were made to 0. The less responsive or slowest element that took the longest time to load (4.1 sec) belongs to the original domain Cdtu.edu.cn.
Page size can be reduced by 424.6 kB (56%)
753.2 kB
328.6 kB
In fact, the total size of Cdtu.edu.cn main page is 753.2 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. 40% of websites need less resources to load. Javascripts take 417.9 kB which makes up the majority of the site volume.
Potential reduce by 18.0 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. 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 18.0 kB or 74% of the original size.
Potential reduce by 52.2 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, Cdtu needs image optimization as it can save up to 52.2 kB or 20% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.
Potential reduce by 315.6 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 315.6 kB or 76% of the original size.
Potential reduce by 38.8 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. Cdtu.edu.cn needs all CSS files to be minified and compressed as it can save up to 38.8 kB or 80% of the original size.
Number of requests can be reduced by 30 (65%)
46
16
The browser has sent 46 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Cdtu. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 31 to 1 for JavaScripts and as a result speed up the page load time.
cdtu.edu.cn
4126 ms
url_control.js
543 ms
load_cache.js
494 ms
login.js
547 ms
cdtu.edu.cn
860 ms
an.jpg
549 ms
login_logo.png
820 ms
login_bg_2.jpg
3667 ms
tabli.png
530 ms
dragbar.png
548 ms
login_btn.jpg
873 ms
wbg.png
761 ms
dragbg.png
801 ms
ios.png
1368 ms
cdtu.edu.cn
301 ms
blue.css
548 ms
em_jquery.css
382 ms
em_jquery_user.css
275 ms
lang.zh_cn.js
1527 ms
em_jquery.js
1372 ms
em_jquery_user.js
880 ms
url_control.js
553 ms
common.js
1143 ms
common.js
818 ms
ui_config.js
818 ms
mail_rfc822.js
1092 ms
cache_control.js
1092 ms
folder_control.js
1171 ms
plugin.js
1362 ms
module_control.js
1913 ms
contacts.js
1523 ms
listmail.js
1798 ms
listnotice.js
1909 ms
readnotice.js
1640 ms
settings.js
2664 ms
compose.js
2290 ms
upload.js
1913 ms
logview.js
2096 ms
swfupload.js
2182 ms
upload_manager.js
2183 ms
login.js
2186 ms
history_control.js
2391 ms
notify.js
2471 ms
emmedia.js
2472 ms
swfobject.js
2678 ms
today.js
2679 ms
bodybg.gif
2204 ms
cdtu.edu.cn accessibility score
Internationalization and localization
These are opportunities to improve the interpretation of your content by users in different locales.
Impact
Issue
<html> element does not have a [lang] attribute
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
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.
cdtu.edu.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
User Experience
Impact
Issue
Serves images with low resolution
General
Impact
Issue
Detected JavaScript libraries
cdtu.edu.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 uses legible font sizes
ZH
N/A
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Cdtu.edu.cn can be misinterpreted by Google and other search engines. Our service has detected that Chinese 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 Cdtu.edu.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.
cdtu.edu.cn
Open Graph description is not detected on the main page of Cdtu. 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: