23.7 sec in total
4 sec
19.5 sec
198 ms
Welcome to sytu.23du.com homepage info - get ready to check Sytu 23 Du best content right away, or after learning these important things about sytu.23du.com
为江南大学在校师生及毕业校友提供专业的校园网络服务及交流论坛
Visit sytu.23du.comWe analyzed Sytu.23du.com page load time and found that the first response time was 4 sec and then it took 19.7 sec to load all DOM resources and completely render a web page. This is an excellent result, as only a small number of websites can load faster.
sytu.23du.com performance score
name
value
score
weighting
Value3.2 s
44/100
10%
Value3.2 s
73/100
25%
Value8.2 s
20/100
10%
Value100 ms
98/100
30%
Value0
100/100
15%
Value3.2 s
94/100
10%
3969 ms
3262 ms
1445 ms
1090 ms
2845 ms
Our browser made a total of 55 requests to load all elements on the main page. We found that 0% of them (0 request) were addressed to the original Sytu.23du.com, 2% (1 request) were made to S14.cnzz.com and 2% (1 request) were made to Discuz.gtimg.cn. The less responsive or slowest element that took the longest time to load (9.8 sec) relates to the external source Pcookie.cnzz.com.
Page size can be reduced by 199.3 kB (66%)
304.0 kB
104.7 kB
In fact, the total size of Sytu.23du.com main page is 304.0 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. Only 10% of websites need less resources to load. Javascripts take 100.3 kB which makes up the majority of the site volume.
Potential reduce by 54.1 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 54.1 kB or 81% of the original size.
Potential reduce by 18.6 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. Obviously, Sytu 23 Du needs image optimization as it can save up to 18.6 kB or 30% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.
Potential reduce by 69.3 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 69.3 kB or 69% of the original size.
Potential reduce by 57.3 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. Sytu.23du.com needs all CSS files to be minified and compressed as it can save up to 57.3 kB or 77% of the original size.
Number of requests can be reduced by 19 (36%)
53
34
The browser has sent 53 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Sytu 23 Du. 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 as a result speed up the page load time.
sytu.myubbs.com
3969 ms
style_1_common.css
3262 ms
style_1_forum_index.css
1445 ms
style.css
1090 ms
common.js
2845 ms
forum.js
2186 ms
logging.js
1210 ms
title.js
1123 ms
stat.php
2115 ms
discuz_tips.js
714 ms
bgimg.jpg
2119 ms
switch_width.png
1464 ms
logo.png
1764 ms
pn_post.png
1224 ms
list.gif
1213 ms
collapsed_no.gif
1462 ms
41.gif
1615 ms
11.gif
1627 ms
9.gif
1830 ms
80.gif
1913 ms
1.gif
1970 ms
95.gif
2005 ms
66.gif
3269 ms
39.gif
2959 ms
49.gif
2874 ms
15.gif
2963 ms
12.gif
2922 ms
14.gif
3262 ms
16.gif
3553 ms
87.gif
3517 ms
48.gif
3553 ms
17.gif
3558 ms
27.gif
4180 ms
28.gif
4181 ms
px.png
4372 ms
newarow.gif
4397 ms
pn.png
4433 ms
nv.png
4603 ms
qmenu.png
4482 ms
nv_a.png
4515 ms
search.png
5448 ms
pt_item.png
5525 ms
arrwd.gif
5712 ms
chart.png
5596 ms
titlebg.png
5338 ms
hdm_top_hover.jpg
5462 ms
stat.htm
165 ms
core.php
1193 ms
hdm_top_normal.jpg
5228 ms
listbg.gif
5216 ms
titlebg.png
4980 ms
9.gif
945 ms
scrolltop.png
3868 ms
app.gif
9839 ms
button_11.gif
724 ms
sytu.23du.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.
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.
sytu.23du.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
sytu.23du.com 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
GBK
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Sytu.23du.com 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 Sytu.23du.com main page’s claimed encoding is gbk. 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.
sytu.23du.com
Open Graph description is not detected on the main page of Sytu 23 Du. 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: