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ebook.21csp.com.cn: 电子样本-中国安防行业网

中国安防行业网(简称“行业网”)是由公安部科技局支持,中国安全防范产品行业协会主办,网站自2000年底成立以来,在公安部科技局、各省公安厅科技处、安防标委会、认证中心、检测中心、警标委及广大安防企业、用户单位的大力支持下,已成功运营6年。

Page load speed analysis

  • 49/100

    Normal result
  • 5

    Successful tests
  • 3

    Failed tests
  • First response

    1.6 sec

  • Resources loaded

    8 sec

  • Page rendered

    204 ms

  • Total page load time

    9.8 sec

Welcome to ebook.21csp.com.cn homepage info - get ready to check Ebook 21 Csp best content for China right away, or after learning these important things about ebook.21csp.com.cn

We analyzed Ebook.21csp.com.cn page load time and found that the first response time was 1.6 sec and then it took 8.2 sec to load all DOM resources and completely render a web page. This is a poor result, as 85% of websites can load faster.

Page optimization

  • HTML 27.6 kB
    Images 1.4 MB
    Javascripts 279.6 kB
    CSS 11.7 kB

    In fact, the total size of Ebook.21csp.com.cn main page is 1.7 MB. This result falls beyond the top 1M of websites and identifies a large and not optimized web page that may take ages to load. 30% of websites need less resources to load. Images take 1.4 MB which makes up the majority of the site volume.

    • Original 27.6 kB
    • After minification 23.9 kB
    • After compression 6.6 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 3.6 kB, which is 13% 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 20.9 kB or 76% of the original size.

    • Original 1.4 MB
    • After optimization 1.2 MB

    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. Ebook 21 Csp images are well optimized though.

    • Original 279.6 kB
    • After minification 166.5 kB
    • After compression 52.1 kB

    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 227.5 kB or 81% of the original size.

    • Original 11.7 kB
    • After minification 9.5 kB
    • After compression 2.6 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. Ebook.21csp.com.cn needs all CSS files to be minified and compressed as it can save up to 9.1 kB or 78% of the original size.

Network requests diagram

  • ebook.21csp.com.cn
  • pub.css
  • dzyb.css
  • xm.js
  • jquery-1.5.1.min.js
  • UserInterface.js
  • stat.php
  • TopMenu.js
  • MSClass.js
  • logo.jpg
  • 000pv.jpg
  • kh.jpg
  • sx2.jpg
  • sx.jpg
  • sx5.jpg
  • sx11.jpg
  • sx6.jpg
  • ss.jpg
  • nav.jpg
  • dzyb_title.jpg
  • q2.jpg
  • 000s.jpg
  • 000s.jpg
  • 000s.jpg
  • 000s.jpg
  • 000s.jpg
  • 000s.jpg
  • bg78X39_2.gif
  • dzyb_fl.jpg
  • dzyb_fl_item.jpg
  • dzyb_title_bg.jpg
  • 000s.jpg
  • 000s.jpg
  • 000s.jpg
  • 000s.jpg
  • 000s.jpg
  • 000s.jpg
  • 000s.jpg
  • 000s.jpg
  • 001pv.jpg
  • 000pv.jpg
  • 001pv.jpg
  • 000pv.jpg
  • 001pv.jpg
  • 000s.jpg
  • 000s.jpg
  • 000s.jpg
  • stat.htm
  • core.php
  • 9.gif
  • pic.gif
  • h_mainnav_bg.gif
  • Userlogin.html
  • DateFormat.js
  • interface.aspx
  • bg78X39_1.gif
  • app.gif

Our browser made a total of 57 requests to load all elements on the main page. We found that 68% of them (39 requests) were addressed to the original Ebook.21csp.com.cn, 16% (9 requests) were made to 21csp.com.cn and 4% (2 requests) were made to B2b.21csp.com.cn. The less responsive or slowest element that took the longest time to load (3.8 sec) relates to the external source 21csp.com.cn.

Additional info on ebook.21csp.com.cn

Requests

The browser has sent 54 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Ebook 21 Csp. 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.

7

Javascripts

42

Images

2

CSS

3

AJAX

54

All

Possible request optimization

1

Javascripts

36

Images

2

CSS

3

AJAX

12

Optimized

42

All

Normal result

IP address

Ebook.21csp.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

DNS records

Type Host Target/ip TTL Other
A

ebook.21csp.com.cn

122.112.2.221 300

Language and encoding

Poor result

Language

ZH zh language flag

Detected

N/A  language flag

Claimed

Encoding

GB2312

Claimed

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Ebook.21csp.com.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 Ebook.21csp.com.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.

HTTPS certificate

SSL Certificate

Ebook.21csp.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 99.3% of all visits is China. It’s good for Ebook.21csp.com.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 Ebook 21 Csp. 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:

ebook.21csp.com.cn

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