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cstnet.cn: 中国科技网,引领科技的中国互联网络!

中国科技网是中国科学院领导下的学术性、非盈利的科研计算机网络。1994年全功能接入互联网,早期四大互联网骨干网之一,全程助力科研信息化发展,20年来与中国互联网事业共成长。

Page load speed analysis

  • 66/100

    Normal result
  • 6

    Successful tests
  • 2

    Failed tests
  • First response

    813 ms

  • Resources loaded

    5 sec

  • Page rendered

    207 ms

  • Total page load time

    6 sec

Visit cstnet.cn now to see the best up-to-date Cstnet content for China and also check out these interesting facts you probably never knew about cstnet.cn

We analyzed Cstnet.cn page load time and found that the first response time was 813 ms and then it took 5.2 sec to load all DOM resources and completely render a web page. This is a poor result, as 70% of websites can load faster.

Page optimization

  • HTML 20.6 kB
    Images 389.9 kB
    Javascripts 1.9 kB
    CSS 137.6 kB

    In fact, the total size of Cstnet.cn main page is 550.0 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. 25% of websites need less resources to load. Images take 389.9 kB which makes up the majority of the site volume.

    • Original 20.6 kB
    • After minification 18.6 kB
    • After compression 5.2 kB

    HTML optimization

    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 15.4 kB or 75% of the original size.

    • Original 389.9 kB
    • After optimization 345.1 kB

    Image optimization

    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, Cstnet needs image optimization as it can save up to 44.9 kB or 12% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

    • Original 1.9 kB
    • After minification 1.9 kB
    • After compression 769 B

    JavaScript optimization

    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 1.1 kB or 60% of the original size.

    • Original 137.6 kB
    • After minification 132.4 kB
    • After compression 22.8 kB

    CSS optimization

    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. Cstnet.cn needs all CSS files to be minified and compressed as it can save up to 114.8 kB or 83% of the original size.

Network requests diagram

  • cstnet.cn
  • bootstrap.min.css
  • bootstrap-theme.min.css
  • css.css
  • jquery-1.11.1.min.js
  • bootstrap.min.js
  • logo.png
  • introduce.png
  • link1.png
  • link3.png
  • link2.png
  • cstnet.png
  • icon-access.png
  • icon-internet.png
  • icon-passID.png
  • icon-address-book.png
  • icon-serviceplatform.png
  • icon-email.png
  • icon-kexin.png
  • icon-document.png
  • icon-videoconference.png
  • icon-tableconference.png
  • newli.png
  • isLogin.do
  • getip.svl
  • glyphicons-halflings-regular.woff

Our browser made a total of 26 requests to load all elements on the main page. We found that 96% of them (25 requests) were addressed to the original Cstnet.cn, 4% (1 request) were made to Passport.escience.cn. The less responsive or slowest element that took the longest time to load (2.8 sec) relates to the external source Passport.escience.cn.

Additional info on cstnet.cn

Requests

The browser has sent 24 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Cstnet. According to our analytics all requests are already optimized.

3

Javascripts

17

Images

3

CSS

1

AJAX

24

All

Possible request optimization

3

Javascripts

17

Images

3

CSS

1

AJAX

0

Optimized

24

All

Good result

IP address

Cstnet.cn uses IP address which is currently shared with 4 other domains. The more sites share the same IP address, the higher the host server’s workload is. It is strongly recommended that the host server should be changed or the hosting provider should be requested to give a different (separate) IP address for this domain.

Poor result

IP Trace

cstnet.cn

cstnet.net.cn

ddl.escience.cn

mail.escience.cn

support.ddl.escience.cn

159.226.27.40

DNS records

Type Host Target/ip TTL Other
A

cstnet.cn

159.226.27.40 10800
NS

cstnet.cn

panda.cstnet.cn 4969
SOA

cstnet.cn

10800 Mname: panda.cstnet.cn
Rname: dns-admin.cstnet.cn
Serial: 2018021003
Refresh: 3600
Retry: 3600
Expire: 3600000
Minimum-ttl: 86400
MX

cstnet.cn

mx.cstnet.cn 3600 Pri: 5
MX

cstnet.cn

mx1.cstnet.cn 3600 Pri: 1

Language and encoding

Normal result

Language

ZH zh language flag

Detected

N/A  language flag

Claimed

Encoding

UTF-8

Claimed

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Cstnet.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 Cstnet.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.

HTTPS certificate

SSL Certificate

Cstnet.cn has no SSL certificate. Web browsing can be safer with HTTPS connection, so we suggest that it should be obtained for this site.

Normal result

Visitor World Map

Country of origin for 97.5% of all visits is China. It’s good for Cstnet.cn that their server is also located in China, as that enables the majority of their visitors to benefit from a much faster page load time.

Good result

Poor result

Social Sharing Optimization

Open Graph description is not detected on the main page of Cstnet. 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:

cstnet.cn

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