Analyze

math.zju.edu.cn: Zhejiang University Email system

Page load speed analysis

  • 50/100

    Normal result
  • 5

    Successful tests
  • 3

    Failed tests
  • First response

    11.4 sec

  • Resources loaded

    14.3 sec

  • Page rendered

    103 ms

  • Total page load time

    25.8 sec

Visit math.zju.edu.cn now to see the best up-to-date Math Zju content for China and also check out these interesting facts you probably never knew about math.zju.edu.cn

We analyzed Math.zju.edu.cn page load time and found that the first response time was 11.4 sec and then it took 14.4 sec to load all DOM resources and completely render a web page. This is a poor result, as 90% of websites can load faster.

Page optimization

  • HTML 5.1 kB
    Images 0 B
    Javascripts 0 B
    CSS 3.5 kB

    In fact, the total size of Math.zju.edu.cn main page is 8.6 kB. This result falls within a vast category (top 1 000 000) of heavyweight, probably not optimized, and thus slow loading web pages. Only a small number of websites need less resources to load. HTML takes 5.1 kB which makes up the majority of the site volume.

    • Original 5.1 kB
    • After minification 3.1 kB
    • After compression 1.2 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. This page needs HTML code to be minified as it can gain 2.0 kB, which is 39% of the original size. It is highly recommended that content of this web page should be compressed using GZIP, as it can save up to 3.9 kB or 76% of the original size.

    • Original 3.5 kB
    • After minification 3.0 kB
    • After compression 1.1 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. Math.zju.edu.cn needs all CSS files to be minified and compressed as it can save up to 2.5 kB or 70% of the original size.

Network requests diagram

  • math.zju.edu.cn
  • login.css
  • login.js
  • MailL_Top_bg.gif
  • logo.gif
  • pic.gif
  • MailL_B_bg.gif
  • opt_title.gif
  • button.gif
  • input_bg.gif
  • footer.gif

Our browser made a total of 11 requests to load all elements on the main page. We found that all of those requests were addressed to Math.zju.edu.cn and no external sources were called. The less responsive or slowest element that took the longest time to load (11.4 sec) belongs to the original domain Math.zju.edu.cn.

Additional info on math.zju.edu.cn

Requests

The browser has sent 10 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Math Zju. According to our analytics all requests are already optimized.

1

Javascripts

8

Images

1

CSS

10

All

Possible request optimization

1

Javascripts

8

Images

1

CSS

0

Optimized

10

All

Good result

IP address

Math.zju.edu.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

math.zju.edu.cn

mail.zju.edu.cn

ema.zju.edu.cn

cmee.zju.edu.cn

cmm.zju.edu.cn

61.164.42.155

DNS records

Type Host Target/ip TTL Other
A

mail.zju.edu.cn

61.164.42.155 60
CNAME

math.zju.edu.cn

mail.zju.edu.cn 57
MX

mail.zju.edu.cn

mail.zju.edu.cn 60 Pri: 10

Language and encoding

Normal result

Language

N/A  language flag

Detected

N/A  language flag

Claimed

Encoding

GBK

Claimed

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Math.zju.edu.cn can be misinterpreted by Google and other search engines. Unfortunately we cannot identify language used on the page (probably there is a mix of languages, too little text or something else) and no language is claimed in <html> or <meta> tags either. Our system also found out that Math.zju.edu.cn 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.

HTTPS certificate

SSL Certificate

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

Poor result

Visitor World Map

Country of origin for 93% of all visits is China. It’s good for Math.zju.edu.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 Math Zju. 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:

math.zju.edu.cn

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