21CSP.COM.CN 中国安防行业网-中国安防网-安防产品-最权威安防网站


21csp.com.cn website information.

21csp.com.cn domain name is registered by .CN top-level domain registry. See the other sites registred in .CN domain zone.

Following name servers are specified for 21csp.com.cn domain:

  • n3583.ns.yunjiasu.com
  • n770.ns.yunjiasu.com

and probably website 21csp.com.cn is hosted by CLOUDFLARENET - Cloudflare, Inc., US web hosting company. Check the complete list of other most popular websites hosted by CLOUDFLARENET - Cloudflare, Inc., US hosting company.

According to Alexa traffic rank the highest website 21csp.com.cn position was 1622 (in the world). The lowest Alexa rank position was 834011. Now website 21csp.com.cn ranked in Alexa database as number 93719 (in the world).

Website 21csp.com.cn Desktop speed measurement score (33/100) is better than the results of 10.11% of other sites shows that the page desktop performance can be improved.

21csp.com.cn Mobile usability score (99/100) is better than the results of 79.46% of other sites and means that the page is mobile-friendly.

Mobile speed measurement score of 21csp.com.cn (56/100) is better than the results of 45.93% of other sites and shows that the landing page performance on mobile devices is poor and can be improved.

Weekly Rank Report

DateRankChange
Nov-15-2024 N/AN/A
Nov-14-2024 93,719-1,531
Nov-13-2024 92,1880
Nov-12-2024 92,1880
Nov-11-2024 92,1880
Nov-10-2024 92,188389
Nov-09-2024 92,577-429

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21csp.com.cn Rank History

Alexa can identify the popularity of a website as well as its competitors. It is important for website owners and bloggers to know their Alexa ranking because it shows how many visitors have viewed their web page. It gives them a clear idea of how popular their website is on the internet and the ranking of their competitors.



21csp.com.cn whois

WHOIS is a query and response protocol that is widely used for querying databases that store the registered users or assignees of an Internet resource, such as a domain name, an IP address block, or an autonomous system, but is also used for a wider range of other information.


21csp.com.cn server information

Servers Location

IP Address
122.112.2.221
Country
China
Region
Beijing
City
Beijing

21csp.com.cn desktop page speed rank

Last tested: 2016-08-09


Desktop Speed Bad
33/100

21csp.com.cn Desktop Speed Test Quick Summary


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priority - 12 Eliminate render-blocking JavaScript and CSS in above-the-fold content

Your page has 15 blocking script resources and 2 blocking CSS resources. This causes a delay in rendering your page.

None of the above-the-fold content on your page could be rendered without waiting for the following resources to load. Try to defer or asynchronously load blocking resources, or inline the critical portions of those resources directly in the HTML.

Remove render-blocking JavaScript:

http://www.21csp.com.cn/Myinc/function.js
http://tjs.sjs.sinajs.cn/open/api/js/wb.js
http://www.21csp.com.cn/js/jquery-1.9.1.min.js
http://www.21csp.com.cn/New21csp/Users/script/UserInterface.js
http://ad.21csp.com.cn/www/ADFunc.js
http://ad.21csp.com.cn/www/js_AD20152.js
http://www.21csp.com.cn/Myinc/PicChange.js?R
http://www.21csp.com.cn/Myinc/HotWords.js
http://s4.cnzz.com/stat.php?id=2032182&web_id=2032182&show=pic
http://c.cnzz.com/core.php?web_id=2032182&show=pic&t=z
http://hr.21csp.com.cn/JS/gettrade.js
http://hr.21csp.com.cn/JS/getposition.js
http://hr.21csp.com.cn/JS/GetProvince.js
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Optimize CSS Delivery of the following:

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priority - 8 Enable compression

Compressing resources with gzip or deflate can reduce the number of bytes sent over the network.

Enable compression for the following resources to reduce their transfer size by 79.9KiB (72% reduction).

Compressing http://hr.21csp.com.cn/JS/getprofession.js could save 55.1KiB (76% reduction).
Compressing http://hr.21csp.com.cn/JS/getposition.js could save 10.4KiB (72% reduction).
Compressing http://s4.cnzz.com/stat.php?id=2032182&web_id=2032182&show=pic could save 6.4KiB (65% reduction).
Compressing http://www.21csp.com.cn/myinc/AJAX_data.asp?oper=GetHRComListN&rnd=714 could save 2KiB (79% reduction).
Compressing http://www.21csp.com.cn/Myinc/PicChange.js?R could save 1.6KiB (62% reduction).
Compressing http://ad.21csp.com.cn/www/ADFunc.js could save 1.2KiB (49% reduction).
Compressing http://c.cnzz.com/core.php?web_id=2032182&show=pic&t=z could save 1.2KiB (47% reduction).
Compressing http://hr.21csp.com.cn/JS/gettrade.js could save 1.1KiB (62% reduction).
Compressing http://www.21csp.com.cn/Myinc/HotWords.js could save 841B (63% reduction).

priority - 2 Prioritize visible content

Your page requires additional network round trips to render the above-the-fold content. For best performance, reduce the amount of HTML needed to render above-the-fold content.

The entire HTML response was not sufficient to render the above-the-fold content. This usually indicates that additional resources, loaded after HTML parsing, were required to render above-the-fold content. Prioritize visible content that is needed for rendering above-the-fold by including it directly in the HTML response.

Only about 26% of the final above-the-fold content could be rendered with the full HTML response.

priority - 2 Minify JavaScript

Compacting JavaScript code can save many bytes of data and speed up downloading, parsing, and execution time.

Minify JavaScript for the following resources to reduce their size by 14.5KiB (40% reduction).

Minifying http://tjs.sjs.sinajs.cn/t35/miniblog/static/js/sso.js?version=1470767479 could save 7.5KiB (41% reduction) after compression.
Minifying http://www.21csp.com.cn/Myinc/function.js could save 3.2KiB (41% reduction) after compression.
Minifying http://www.21csp.com.cn/New21csp/Users/script/UserInterface.js could save 1.8KiB (45% reduction) after compression.
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priority - 0 Minify CSS

Compacting CSS code can save many bytes of data and speed up download and parse times.

Minify CSS for the following resources to reduce their size by 598B (13% reduction).

Minifying http://www.21csp.com.cn/New21csp/Template/css/ind20157.css?d could save 598B (13% reduction) after compression.

21csp.com.cn Desktop Resources

Total Resources199
Number of Hosts20
Static Resources188
JavaScript Resources21
CSS Resources3

21csp.com.cn Desktop Resource Breakdown

21csp.com.cn mobile page speed rank

Last tested: 2019-12-07


Mobile Speed Bad
56/100

21csp.com.cn Mobile Speed Test Quick Summary


priority - 40 Eliminate render-blocking JavaScript and CSS in above-the-fold content

Your page has 7 blocking script resources and 2 blocking CSS resources. This causes a delay in rendering your page.

None of the above-the-fold content on your page could be rendered without waiting for the following resources to load. Try to defer or asynchronously load blocking resources, or inline the critical portions of those resources directly in the HTML.

Remove render-blocking JavaScript:

http://m.21csp.com.cn/js/jquery-1.8.3.min.js
http://m.21csp.com.cn/js/mobile.js
http://m.21csp.com.cn/js/jquery.mobile-1.3.2.min.js
http://m.21csp.com.cn/js/function.js
http://m.21csp.com.cn/js/imgScroll.js
http://s13.cnzz.com/stat.php?id=5791731
http://c.cnzz.com/core.php?web_id=5791731&t=z

Optimize CSS Delivery of the following:

http://m.21csp.com.cn/css/jquery.mobile-1.3.2.min.css
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priority - 19 Enable compression

Compressing resources with gzip or deflate can reduce the number of bytes sent over the network.

Enable compression for the following resources to reduce their transfer size by 185KiB (68% reduction).

Compressing http://m.21csp.com.cn/js/jquery.mobile-1.3.2.min.js could save 101.1KiB (71% reduction).
Compressing http://m.21csp.com.cn/js/jquery-1.8.3.min.js could save 58.8KiB (64% reduction).
Compressing http://m.21csp.com.cn/ could save 11.2KiB (71% reduction).
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Compressing http://m.21csp.com.cn/js/imgScroll.js could save 4KiB (65% reduction).
Compressing http://m.21csp.com.cn/js/function.js could save 2.9KiB (65% reduction).
Compressing http://m.21csp.com.cn/js/mobile.js could save 707B (52% reduction).

priority - 16 Leverage browser caching

Setting an expiry date or a maximum age in the HTTP headers for static resources instructs the browser to load previously downloaded resources from local disk rather than over the network.

Leverage browser caching for the following cacheable resources:

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http://m.21csp.com.cn/editor/UploadFile/2016-8/20160803144663206320.jpg (expiration not specified)
http://m.21csp.com.cn/editor/UploadFile/2016-8/20160804090529332933.jpg (expiration not specified)
http://m.21csp.com.cn/img/close.jpg (expiration not specified)
http://m.21csp.com.cn/img/logo.jpg (expiration not specified)
http://m.21csp.com.cn/img/menu.jpg (expiration not specified)
http://m.21csp.com.cn/js/function.js (expiration not specified)
http://m.21csp.com.cn/js/imgScroll.js (expiration not specified)
http://m.21csp.com.cn/js/jquery-1.8.3.min.js (expiration not specified)
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priority - 8 Prioritize visible content

Your page requires additional network round trips to render the above-the-fold content. For best performance, reduce the amount of HTML needed to render above-the-fold content.

The entire HTML response was not sufficient to render the above-the-fold content. This usually indicates that additional resources, loaded after HTML parsing, were required to render above-the-fold content. Prioritize visible content that is needed for rendering above-the-fold by including it directly in the HTML response.

Only about 52% of the final above-the-fold content could be rendered with the full HTML response.

priority - 0 Minify JavaScript

Compacting JavaScript code can save many bytes of data and speed up downloading, parsing, and execution time.

Minify JavaScript for the following resources to reduce their size by 4.4KiB (42% reduction).

Minifying http://m.21csp.com.cn/js/imgScroll.js could save 2.4KiB (40% reduction).
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priority - 0 Optimize images

Properly formatting and compressing images can save many bytes of data.

Optimize the following images to reduce their size by 4.8KiB (47% reduction).

Compressing and resizing http://m.21csp.com.cn/img/close.jpg could save 3.2KiB (89% reduction).
Losslessly compressing http://m.21csp.com.cn/img/menu.jpg could save 839B (57% reduction).
Losslessly compressing http://m.21csp.com.cn/img/logo.jpg could save 836B (16% reduction).

priority - 0 Minify CSS

Compacting CSS code can save many bytes of data and speed up download and parse times.

Minify CSS for the following resources to reduce their size by 551B (19% reduction).

Minifying http://m.21csp.com.cn/css/mobile.css could save 551B (19% reduction) after compression.

21csp.com.cn Mobile Resources

Total Resources30
Number of Hosts7
Static Resources22
JavaScript Resources7
CSS Resources2

21csp.com.cn Mobile Resource Breakdown

21csp.com.cn mobile page usability

Last tested: 2019-12-07


Mobile Usability Good
99/100

21csp.com.cn Mobile Usability Test Quick Summary


priority - 0 Size tap targets appropriately

Some of the links/buttons on your webpage may be too small for a user to easily tap on a touchscreen. Consider making these tap targets larger to provide a better user experience.

The following tap targets are close to other nearby tap targets and may need additional spacing around them.

The tap target <div id="J-Touch-ico1" class="imgFlashIco">1 2 3</div> is close to 1 other tap targets.

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21csp.com.cn Ping

Ping is a networking utility tool to test if a particular host is reachable. It is a diagnostic that checks reachability of a host on an Internet Protocol (IP) network. In a computer network, a ping test is a way of sending messages from one host to another. Aside from checking if the host is connected to a network, ping also gives indicators of the reliability and general speed of the connection.


21csp.com.cn TRACEROUTE

Traceroute is a network diagnostic tool used to track the pathway taken by a packet on an IP network from source to destination. Traceroute also records the time taken for each hop the packet makes during its route to the destination. Traceroute uses ICMP (Internet Control Message Protocol) echo packets with variable time to live values. The response time of each hop is calculated. To guarantee accuracy, each hop is queried multiple times (usually three times) to better measure the response of that particular hop.