46.3 sec in total
9.8 sec
36.2 sec
350 ms
Visit sdz.cn now to see the best up-to-date Sdz content and also check out these interesting facts you probably never knew about sdz.cn
指定的节点ID不正确!
Visit sdz.cnWe analyzed Sdz.cn page load time and found that the first response time was 9.8 sec and then it took 36.5 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. Unfortunately, there were 30 request timeouts, which can generally increase the web page load time, as the browser stays idle while waiting for website response.
sdz.cn performance score
name
value
score
weighting
Value1.9 s
88/100
10%
Value2.7 s
85/100
25%
Value5.5 s
54/100
10%
Value520 ms
57/100
30%
Value0
100/100
15%
Value3.0 s
96/100
10%
9765 ms
1549 ms
769 ms
2074 ms
1514 ms
Our browser made a total of 96 requests to load all elements on the main page. We found that 82% of them (79 requests) were addressed to the original Sdz.cn, 3% (3 requests) were made to Hm.baidu.com and 2% (2 requests) were made to Fudan.edu.cn. The less responsive or slowest element that took the longest time to load (20.4 sec) belongs to the original domain Sdz.cn.
Page size can be reduced by 279.3 kB (57%)
490.5 kB
211.2 kB
In fact, the total size of Sdz.cn main page is 490.5 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. 25% of websites need less resources to load. Images take 242.9 kB which makes up the majority of the site volume.
Potential reduce by 52.2 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. 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 52.2 kB or 83% of the original size.
Potential reduce by 100.8 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, Sdz needs image optimization as it can save up to 100.8 kB or 42% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.
Potential reduce by 99.2 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 99.2 kB or 65% of the original size.
Potential reduce by 27.1 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. Sdz.cn needs all CSS files to be minified and compressed as it can save up to 27.1 kB or 84% of the original size.
Number of requests can be reduced by 12 (20%)
59
47
The browser has sent 59 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Sdz. 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.
sdz.cn
9765 ms
index.css
1549 ms
Common.js
769 ms
slider.js
2074 ms
2010a_js_peswfobjectopt.js
1514 ms
jason.js
1539 ms
jquery.pack.js
6325 ms
jquery.roll.js
1924 ms
CounterLink.asp
423 ms
jsjy.gif
2373 ms
a9.gif
1547 ms
logo.gif
1052 ms
LOGO.jpg
3969 ms
b.gif
2376 ms
spt.jpg
2790 ms
sxjs.gif
4024 ms
yce.gif
2494 ms
link_29.jpg
5602 ms
ypt.jpg
3115 ms
dtjyLogo.gif
3873 ms
bd.jpg
3314 ms
qx.jpg
3169 ms
nj.jpg
3862 ms
zj.jpg
3564 ms
bg01.gif
446 ms
bg.png
411 ms
a11.jpg
1573 ms
xzxx.png
2826 ms
czlx.jpg
5010 ms
btn_zt3.png
797 ms
btn_zt4.png
3028 ms
a02.jpg
2368 ms
a03.jpg
3882 ms
btn_p_left.gif
2757 ms
2016011307562127.jpg
8034 ms
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20414 ms
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14944 ms
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20414 ms
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20415 ms
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20415 ms
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20415 ms
index.php
9112 ms
2015090911393543.jpg
20410 ms
sjtulogo20110425.png
1590 ms
dn.jpg
3750 ms
nlg.jpg
3944 ms
nh.jpg
3846 ms
counter.asp
20022 ms
6.js
20025 ms
7.js
19991 ms
btn_p_right.gif
19637 ms
jyb.jpg
19844 ms
miniNavBg.png
18786 ms
banner.jpg
19661 ms
menu_bg.png
19597 ms
hometitle.png
18859 ms
top_news_act.png
17665 ms
icon_dot.png
17768 ms
more2.gif
14202 ms
mobile.css
363 ms
jquery-1.8.2.min.js
367 ms
b1.png
68 ms
h.js
1316 ms
21.gif
993 ms
b1.png
40 ms
hm.gif
1234 ms
hm.gif
2043 ms
ico_kstd.png
7934 ms
ico_xkdh.png
2652 ms
btn_subtab.png
2404 ms
wztj_bg01.png
6401 ms
statonline.asp
2830 ms
logo.gif
333 ms
LOGO.jpg
578 ms
linktitbg.gif
2776 ms
yxy.png
2918 ms
CA111761357603848050002.js
1943 ms
blue_error.png
821 ms
bg02.gif
1070 ms
sdz.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.
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.
sdz.cn best practices score
Trust and Safety
Impact
Issue
Does not use HTTPS
Ensure CSP is effective against XSS attacks
General
Impact
Issue
Detected JavaScript libraries
sdz.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
GB2312
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Sdz.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 Sdz.cn main page’s claimed encoding is gb2312. 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.
sdz.cn
Open Graph description is not detected on the main page of Sdz. 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: