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cas.teacher.com.cn: 会员登录 - 全国中小学教师继续教育网

Page load speed analysis

  • 53/100

    Normal result
  • 6

    Successful tests
  • 2

    Failed tests
  • First response

    2.4 sec

  • Resources loaded

    12.3 sec

  • Page rendered

    145 ms

  • Total page load time

    14.8 sec

Click here to check amazing Cas Teacher content for China. Otherwise, check out these important facts you probably never knew about cas.teacher.com.cn

We analyzed Cas.teacher.com.cn page load time and found that the first response time was 2.4 sec and then it took 12.4 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 3.2 kB
    Images 38.2 kB
    Javascripts 1.5 kB
    CSS 14.4 kB

    In fact, the total size of Cas.teacher.com.cn main page is 57.4 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. Images take 38.2 kB which makes up the majority of the site volume.

    • Original 3.2 kB
    • After minification 3.1 kB
    • After compression 1.4 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 1.8 kB or 57% of the original size.

    • Original 38.2 kB
    • After optimization 31.2 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, Cas Teacher needs image optimization as it can save up to 7.1 kB or 18% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

    • Original 1.5 kB
    • After minification 1.5 kB
    • After compression 664 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 844 B or 56% of the original size.

    • Original 14.4 kB
    • After minification 10.7 kB
    • After compression 3.4 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. Cas.teacher.com.cn needs all CSS files to be minified and compressed as it can save up to 11.0 kB or 76% of the original size.

Network requests diagram

  • cas.teacher.com.cn
  • login.css
  • foot.js
  • logo.gif
  • pre_logo.jpg
  • frame_login.jhtml
  • biaoshi.gif
  • mini-pkg-min.css
  • stuff-red.png
  • entries.png

Our browser made a total of 10 requests to load all elements on the main page. We found that 20% of them (2 requests) were addressed to the original Cas.teacher.com.cn, 40% (4 requests) were made to Img.teacher.com.cn and 30% (3 requests) were made to S.teachercdn.com.cn. The less responsive or slowest element that took the longest time to load (6 sec) relates to the external source S.teachercdn.com.cn.

Additional info on cas.teacher.com.cn

Requests

The browser has sent 9 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Cas Teacher. According to our analytics all requests are already optimized.

1

Javascripts

5

Images

2

CSS

1

AJAX

9

All

Possible request optimization

1

Javascripts

5

Images

2

CSS

1

AJAX

0

Optimized

9

All

Good result

IP address

Cas.teacher.com.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

cas.teacher.com.cn

doyo.cn

d1cm.com

loccitane.cn

hz.5i5j.com

119.207.67.25

DNS records

Type Host Target/ip TTL Other
A

cas.teacher.com.cn.wswebpic.com

119.207.67.25 60
CNAME

cas.teacher.com.cn

cas.teacher.com.cn.wswebpic.com 60

Language and encoding

Good result

Language

N/A  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 Cas.teacher.com.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 Cas.teacher.com.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

Cas.teacher.com.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 100% of all visits is China. It lies approximately 1340 miles away from the server location (Korea, Republic of) and such a distance cannot critically affect website speed, but moving the server closer to their user base in China can speed up Cas.teacher.com.cn page load time anyway.

Normal result

Poor result

Social Sharing Optimization

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

cas.teacher.com.cn

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