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

Quick Summary

Online Status

Online

Server IP address resolved: Yes
Http response code: 200
Response time: 0.73 sec.
Last Checked: 01/20/2023

Over the time 21csp.com.cn has been ranked as high as 1,622 in the world, while most of its traffic comes from China, where it reached as high as 909 position.

21csp.com.cn receives about 26,016 unique visitors and 72,845 pageviews per day. The estimated value of 21csp.com.cn is 959,220 USD. Each unique visitor makes about 2.8 pageviews on average.

21csp.com.cn is registered under .CN top-level domain. Check other websites in .CN zone.

At the time of the last check (May 02, 2024) 21csp.com.cn has an invalid SSL certificate.

According to Google Safe Browsing, Google Safe Search and Symantec 21csp.com.cn is quite a safe domain.

Mobile-Friendly test indicates that 21csp.com.cn is well optimized for mobile and tablet devices, however website page loading time could be improved.

21csp.com.cn General Information

Global Rank

9,320

Average Load Time

4.39sec

Links In Count

305

Website Value

$959,220

Audience Geography. Where are 21csp.com.cn visitors located?

Country	Rank
China CN	909

Country	Percent of Pageviews
China CN	99.7%
Other	0.3%

Country	Percent of Visitors
China CN	99.7%
Other	0.3%

Where do visitors go on 21csp.com.cn?

Subdomain	Pageviews
21csp.com.cn	48.2%
news.21csp.com.cn	13.41%
b2b.21csp.com.cn	9.72%
train.21csp.com.cn	6.17%
project.21csp.com.cn	5.64%
xh.21csp.com.cn	5.45%
hr.21csp.com.cn	5.24%
usercenter.21csp.com.cn	3.01%
gcs.21csp.com.cn	1.59%
dictionary.21csp.com.cn	1.52%
other	0.07%

Subdomain	Pageviews per User
21csp.com.cn	2.4
b2b.21csp.com.cn	1.3
train.21csp.com.cn	1.2
news.21csp.com.cn	1.2
hr.21csp.com.cn	1.1
xh.21csp.com.cn	1.1
project.21csp.com.cn	1.1
dictionary.21csp.com.cn	1
gcs.21csp.com.cn	1
usercenter.21csp.com.cn	1
other	0

Subdomain	Reach
21csp.com.cn	56.09%
news.21csp.com.cn	30.01%
b2b.21csp.com.cn	20.55%
train.21csp.com.cn	14.44%
project.21csp.com.cn	13.73%
xh.21csp.com.cn	13.47%
hr.21csp.com.cn	13.39%
usercenter.21csp.com.cn	8.05%
gcs.21csp.com.cn	4.39%
dictionary.21csp.com.cn	4.18%

How popular is 21csp.com.cn?

Days	Reach Rank	Reach Rank Delta	Reach per Million	Reach per Million Delta
90	9355	-1312	892	9%
30	8701	-696	95	7%
7	8631	-660	96	8%
1	8242	-1146	99	10%

Days	Pageviews Rank	Pageviews Rank Delta	Pageviews per Million	Pageviews per Million Delta	Pageviews per User	Pageviews per User Delta
90	11030	-1374	675	9.6%	2.8	0.7%
30	10514	-590	71	5%	2.8	-2.13%
7	10632	-1105	71	10%	2.7	2%
1	12242	280	63	-4.36%	2	-13.48%

Period	Global Rank	Global Rank Delta
past 3 months	9320	-1278
past month	8740	-673
past week	8708	-758
yesterday	8736	-711

21csp.com.cn Alexa Rank History

Alexa Rank shows how popular 21csp.com.cn is in comparison with other sites. The most popular site has Alexa Rank equals 1. If 21csp.com.cn has Alexa Rank equals 100,000, then it is in TOP 100,000 popular sites in the world. The rank is calculated using a combination of average daily visitors to 21csp.com.cn and pageviews on 21csp.com.cn over the past 3 months.

21csp.com.cn Safety Information

Overview

Last Updated: 05/02/2024

Overall result - "21csp.com.cn" is SAFE.
We gather website safety and reputation data and compare it with available third-party sources so we calculate own safety and trustworthiness rate based on information that we get.

Norton Connect Safe

Last Updated: 03/19/2023

21csp.com.cn is safe.

Norton ConnectSafe evaluates 21csp.com.cn for any unsafe and insecure content. The results are critical for families with young children.

Google Safe Search

Last Updated: 10/12/2016

21csp.com.cn is safe.

SafeSearch is used as a parental control tool to filter out any inappropriate for your children search results on your devices: phones, tablets or personal computers.

Google Safe Browsing

Last Updated: 01/09/2019

Malware not found at "21csp.com.cn".
"21csp.com.cn" is not a phishing page.
"21csp.com.cn" does not install unwanted software.
"21csp.com.cn" does not contain harmfull applications.
Google Safe Browsing notifies when websites are compromised by malicious actors. These protections work across Google products and provide a safer online experience.

Site Advisor

Last Updated: 02/22/2021

21csp.com.cn is safe.

McAfee assesses 21csp.com.cn for a meaningful set of security threats. Featured dangers from annoying pop-ups to hidden Trojans, that can steal your identity, will be revealed. McAfee does not analyze 21csp.com.cn for mature or inappropriate content, only security checks are evaluated.

Web of Trust

Last Updated: 05/02/2024

21csp.com.cn child safety isunknown.

The WOT calculates reputation of the 21csp.com.cn. This reputation system receives ratings from users and information from third-party sources, assesses the 21csp.com.cn for safety features and confirms, whether 21csp.com.cn is suitable for children.

SSL Information

SSL Checker Tool

WARNING!	Certificate download error. Previous scan results are shown below.
WARNING!	21csp.com.cn is not secured by SSL certificate.

21csp.com.cn Server Information

Server Location

Geolocation Tool

Beijing

China

ASN Information

ASN Lookup Tool

ASN ID: 4847
ASN Title: CNIX-AP China Networks Inter-Exchange, CN

Last Update: 10/02/2023

ASN Whois

% [whois.apnic.net]
% Whois data copyright terms http://www.apnic.net/db/dbcopyright.html

% Information related to 'AS4608 - AS4864'

as-block: AS4608 - AS4864
descr: APNIC ASN block
remarks: These AS numbers are further assigned by APNIC
remarks: to APNIC members and end-users in the APNIC region
admin-c: HM20-AP
tech-c: HM20-AP
mnt-by: APNIC-HM
mnt-lower: APNIC-HM
last-modified: 2008-09-04T06:40:26Z
source: APNIC

role: APNIC Hostmaster
address: 6 Cordelia Street
address: South Brisbane
address: QLD 4101
country: AU
phone: +61 7 3858 3100
fax-no: +61 7 3858 3199
e-mail: helpdesk@apnic.net
admin-c: AMS11-AP
tech-c: AH256-AP
nic-hdl: HM20-AP
remarks: Administrator for APNIC
notify: hostmaster@apnic.net
mnt-by: MAINT-APNIC-AP
last-modified: 2013-10-23T04:06:51Z
source: APNIC

% Information related to 'AS4847'

% Abuse contact for 'AS4847' is 'anti-spam@ns.chinanet.cn.net'

aut-num: AS4847
as-name: CNIX-AP
descr: China Networks Inter-Exchange
descr: Using International Link at Beijing
descr: Connect to Sprint Link Intl and Global Sprint Link
country: CN
import: from AS1792
action pref=100;
accept ANY
import: from AS4000
action pref=100;
accept ANY
export: to AS3460
announce ANY
export: to AS3717
announce ANY
admin-c: LZ1-AP
tech-c: WZ1-CN
mnt-by: MAINT-CHINANET-CN
mnt-irt: IRT-CHINANET-CN
remarks: hostmaster@apnic.net 960910
last-modified: 2015-12-01T22:09:32Z
source: APNIC

irt: IRT-CHINANET-CN
address: No.31 ,jingrong street,beijing
address: 100032
e-mail: anti-spam@ns.chinanet.cn.net
abuse-mailbox: anti-spam@ns.chinanet.cn.net
admin-c: CH93-AP
tech-c: CH93-AP
auth: # Filtered
mnt-by: MAINT-CHINANET
last-modified: 2010-11-15T00:31:55Z
source: APNIC

person: Liang Zhiping
address: Data Communication Bureau
address: Ministry of Posts and Telecommunications
address: 40,Xue Yuan Road
address: Beijing 1000083
country: CN
phone: +86-10-62053944
fax-no: +86-10-62053995
e-mail: lzp@public.bta.net.cn
nic-hdl: LZ1-AP
mnt-by: MAINT-NULL
last-modified: 2008-09-04T07:29:13Z
source: APNIC

person: Wanshu Zhou
address: Data Communication Bureau MPT
address: 40 Xueyuan Rd.
address: Beijing China 100083
country: CN
phone: +86-10-205-3992
fax-no: +86-10-205-3994
e-mail: zhouws@public.bta.net.cn
nic-hdl: WZ1-CN
notify: zhouws@public.bta.net.cn
notify: zhang@usai.asiainfo.com
mnt-by: MAINT-NULL
last-modified: 2011-12-22T05:14:24Z
source: APNIC

% This query was served by the APNIC Whois Service version 1.88.15-46 (WHOIS-US4)

21csp.com.cn Domain Name Information

WHOIS

WHOIS Lookup Tool

Domain Whois

Domain Name: 21csp.com.cn
ROID: 20021209s10011s00057804-cn
Domain Status: ok
Registrant: 中国安全防范产品行业协会
Registrant Contact Email: 897108425@qq.com
Sponsoring Registrar: 阿里云计算有限公司（万网）
Name Server: n3583.ns.yunjiasu.com
Name Server: n770.ns.yunjiasu.com
Registration Time: 2000-09-27 00:00:00
Expiration Time: 2023-09-27 00:00:00
DNSSEC: unsigned

DNS Records

DNS Lookup Tool

Host	A Record	TTL
21csp.com.cn	122.112.2.221	300

Host	MX Record	Priority	TTL
21csp.com.cn	mxcom.263xmail.com	2	300
21csp.com.cn	mxwcom.263xmail.com	1	300

Host	NS Record	TTL
21csp.com.cn	n3583.ns.yunjiasu.com	86400
21csp.com.cn	n770.ns.yunjiasu.com	86400

Host	TXT Record	TTL

21csp.com.cn HTML Validation

HTML Validation Tool

Errors

Malformed byte sequence: “d6”.

Malformed byte sequence: “fa”.

Malformed byte sequence: “b0”.

Malformed byte sequence: “b2”.

Malformed byte sequence: “b7”.

Malformed byte sequence: “c0”.

Malformed byte sequence: “d0”.

Malformed byte sequence: “cd”.

Malformed byte sequence: “f8”.

Malformed byte sequence: “d7”.

Malformed byte sequence: “ee”.

Malformed byte sequence: “fe”.

Malformed byte sequence: “b9”.

Malformed byte sequence: “a4”.

Malformed byte sequence: “b3”.

Malformed byte sequence: “cc”.

Malformed byte sequence: “c9”.

Malformed byte sequence: “bb”.

Malformed byte sequence: “e1”.

Malformed byte sequence: “ca”.

Malformed byte sequence: “d3”.

Malformed byte sequence: “bc”.

Malformed byte sequence: “e0”, “bf”.

Malformed byte sequence: “d8”.

Malformed byte sequence: “ee”, “b6”.

Malformed byte sequence: “c8”.

Malformed byte sequence: “cb”.

Malformed byte sequence: “f6”.

Malformed byte sequence: “eb”, “bf”.

Malformed byte sequence: “da”.

Malformed byte sequence: “eb”.

Malformed byte sequence: “c7”.

Malformed byte sequence: “e2”.

Malformed byte sequence: “b5”.

Malformed byte sequence: “c1”.

Malformed byte sequence: “b1”.

Malformed byte sequence: “a8”.

Malformed byte sequence: “be”.

Malformed byte sequence: “af”.

Malformed byte sequence: “e3”.

Malformed byte sequence: “cf”.

Malformed byte sequence: “f1”, “bb”.

Malformed byte sequence: “ac”.

Malformed byte sequence: “ec”.

Malformed byte sequence: “c4”.

Malformed byte sequence: “ea”, “bc”.

Malformed byte sequence: “d5”.

Malformed byte sequence: “ea”.

Malformed byte sequence: “ab”.

Malformed byte sequence: “bf”.

Malformed byte sequence: “c6”.

Malformed byte sequence: “f7”.

Malformed byte sequence: “e6”.

Malformed byte sequence: “a2”.

Malformed byte sequence: “c5”.

Malformed byte sequence: “a1”.

Malformed byte sequence: “a3”.

Malformed byte sequence: “c3”.

Malformed byte sequence: “bd”.

Malformed byte sequence: “e2”, “be”.

Malformed byte sequence: “b8”.

Malformed byte sequence: “e2”, “b5”.

Malformed byte sequence: “dc”.

Malformed byte sequence: “ed”, “bb”.

Malformed byte sequence: “f3”.

Malformed byte sequence: “a7”.

Malformed byte sequence: “e0”, “b9”.

Malformed byte sequence: “df”.

Malformed byte sequence: “c2”.

Malformed byte sequence: “ce”.

Malformed byte sequence: “f1”, “a1”, “a3”.

Almost standards mode doctype. Expected “<!DOCTYPE html>”.

Internal encoding declaration “gb2312” disagrees with the actual encoding of the document (“utf-8”).

Bad value “text/html; charset=gb2312” for attribute “content” on element “meta”: “gb2312” is not a preferred encoding name. The preferred label for this encoding is “gbk”.

An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.

Malformed byte sequence: “d1”.

Malformed byte sequence: “e4”.

Malformed byte sequence: “eb”, “b9”.

Malformed byte sequence: “fc”.

Malformed byte sequence: “b4”.

Malformed byte sequence: “e5”.

Malformed byte sequence: “fb”.

Malformed byte sequence: “d2”.

Bad value “http://b2b.21csp.com.cn/key/��.html” for attribute “href” on element “a”: Illegal character in path segment: “�” is not allowed.

Bad value “http://b2b.21csp.com.cn/key/��ܱ��.html” for attribute “href” on element “a”: Illegal character in path segment: “�” is not allowed.

Bad value “http://b2b.21csp.com.cn/key/�Ž�.html” for attribute “href” on element “a”: Illegal character in path segment: “�” is not allowed.

Bad value “http://b2b.21csp.com.cn/key/��.html” for attribute “href” on element “a”: Illegal character in path segment: “�” is not allowed.

Bad element name “wb:follow-button”: Code point “U+003A” is not allowed

Malformed byte sequence: “a6”.

Malformed byte sequence: “db”.

Malformed byte sequence: “a9”.

Malformed byte sequence: “b6”.

Malformed byte sequence: “f1”.

Malformed byte sequence: “ae”.

Malformed byte sequence: “ba”.

Malformed byte sequence: “fd”.

Malformed byte sequence: “e0”.

Malformed byte sequence: “e8”.

Malformed byte sequence: “a5”.

Malformed byte sequence: “d4”.

Bad value “http://wpa.qq.com/msgrd?V=1&Uin=105511899&Site=�߻��Ӣ&Menu=yes” for attribute “href” on element “a”: Illegal character in query: “�” is not allowed.

Bad value “http://wpa.qq.com/msgrd?V=1&Uin=76717287&Site=CEO��&Menu=yes” for attribute “href” on element “a”: Illegal character in query: “�” is not allowed.

Bad value “http://wpa.qq.com/msgrd?V=1&Uin=126455849&Site=��&Menu=yes” for attribute “href” on element “a”: Illegal character in query: “�” is not allowed.

Bad value “http://wpa.qq.com/msgrd?V=1&Uin=105512710&Site=��Ʒ&Menu=yes” for attribute “href” on element “a”: Illegal character in query: “�” is not allowed.

Malformed byte sequence: “d9”.

Malformed byte sequence: “f0”.

Malformed byte sequence: “f9”.

Malformed byte sequence: “f4”.

Malformed byte sequence: “f5”.

Malformed byte sequence: “e7”.

Malformed byte sequence: “f2”.

Element “area” is missing required attribute “alt”.

The “width” attribute on the “table” element is obsolete. Use CSS instead.

The “cellspacing” attribute on the “table” element is obsolete. Use CSS instead.

The “cellpadding” attribute on the “table” element is obsolete. Use CSS instead.

The “border” attribute on the “table” element is obsolete. Use CSS instead.

The “align” attribute on the “td” element is obsolete. Use CSS instead.

The “height” attribute on the “td” element is obsolete. Use CSS instead.

Malformed byte sequence: “e0”, “b1”.

Malformed byte sequence: “ee”, “b4”.

Malformed byte sequence: “e9”.

Malformed byte sequence: “e7”, “ba”.

Malformed byte sequence: “aa”.

Warnings

The “language” attribute on the “script” element is obsolete. You can safely omit it.

Element name “wb:follow-button” cannot be represented as XML 1.0.

Text run starts with a composing character.

Text run is not in Unicode Normalization Form C.

The “border” attribute is obsolete. Consider specifying “img { border: 0; }” in CSS instead.

Document uses the Unicode Private Use Area(s), which should not be used in publicly exchanged documents. (Charmod C073)

NON-DOCUMENT-ERROR

Too many messages.

21csp.com.cn Desktop Insights

Desktop Page Insights Tool

Last tested: 08/09/2016

Desktop

Desktop Speed

33%

Optimize images

Leverage browser caching

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

Enable compression

Prioritize visible content

Minify JavaScript

Minify CSS

Desktop Resource Breakdown

Total Resources	199
Number of Hosts	20
Static Resources	188
JavaScript Resources	21
CSS Resources	3

21csp.com.cn Mobile Insights

Mobile Page Insights Tool

Last tested: 08/09/2016

Mobile

Mobile Usability

99%

Size tap targets appropriately

Mobile Speed

56%

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

Enable compression

Leverage browser caching

Prioritize visible content

Minify JavaScript

Optimize images

Minify CSS

Mobile Resource Breakdown

Total Resources	30
Number of Hosts	7
Static Resources	22
JavaScript Resources	7
CSS Resources	2

21csp.com.cn Typos

www.21csp.com
www.21csp.net
www.21csp.org
www.21csp.info
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www.21cap.com.cn
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www.21cs.com.cn
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www.21csl.com.cn
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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

Quick Summary

21csp.com.cn General Information

21csp.com.cn Alexa Rank History

21csp.com.cn Safety Information

21csp.com.cn Server Information

21csp.com.cn Domain Name Information

21csp.com.cn HTML Validation

21csp.com.cn Desktop Insights

21csp.com.cn Mobile Insights

21csp.com.cn Nearest Competitors

21csp.com.cn Typos