21cn.com 21CN
21CN是中国电信全资子公司，中国最早的互联网企业之一，近年来致力于移动互联网和云计算领域的产品研发，为个人与企业提供媒体资讯、电子邮箱、移动应用与云存储等方面的服务
Server IP address resolved: Yes
Http response code: 200
Response time: 0.64 sec.
Last Checked: 12/01/2023
21cn.com traffic volume is 21,993 unique daily visitors and their 46,185 pageviews. The web value rate of 21cn.com is 806,095 USD. Each visitor makes around 2.25 page views on average.
By Alexa's traffic estimates 21cn.com placed at 282 position over the world, while the largest amount of its visitors comes from China, where it takes 2,142 place.
Perfect for 21cn.com that their data center (provided by company company CHINATELECOM-CTCLOUD Cloud Computing Corporation, CN) is located in China, as that empowers most of the visitors to reduce the page load time. See the list of other web pages hosted by CHINATELECOM-CTCLOUD Cloud Computing Corporation, CN.
21cn.com registered under .COM top-level domain. Check other websites in .COM zone.
The last verification results, performed on (August 28, 2018) 21cn.com show that 21cn.com has an expired wildcard SSL certificate (expired on February 05, 2019). Click “Refresh” button for SSL Information at the Safety Information section.
In accordance with 21cn.com is a suspicious domain.
Relying Google MobileFriendly test 21cn.com is well optimized for mobile and tablet devices, however web page loading speed may be improved.
Audience Geography. Where are 21cn.com visitors located?
| Country | Visitors |
|---|---|
 China CN | 90.4% |
| Japan JP | 6.2% |
| Hong Kong HK | 0.6% |
| United States US | 0.6% |
| Other | 2.3% |
| Country | Pageviews |
|---|---|
| China CN | 93.5% |
| Japan JP | 2.8% |
| United States US | 0.9% |
| Hong Kong HK | 0.8% |
| Other | 2.1% |
| Country | Rank |
|---|---|
| China CN | 2142 |
| Hong Kong HK | 13061 |
| Japan JP | 21147 |
| United States US | 252884 |
Where do visitors go on 21cn.com?
| Subdomain | Pageviews |
|---|---|
| mail.21cn.com | 40.39% |
| ts.21cn.com | 28.74% |
| 21cn.com | 8.65% |
| news.21cn.com | 4.64% |
| webmail.21cn.com | 2.93% |
| 189.21cn.com | 2.4% |
| it.21cn.com | 1.5% |
| et.21cn.com | 1.44% |
| k.21cn.com | 1.32% |
| other | 7.99% |
| Subdomain | Pageviews per User |
|---|---|
| webmail.21cn.com | 4 |
| ts.21cn.com | 3.5 |
| mail.21cn.com | 3.4 |
| et.21cn.com | 2 |
| news.21cn.com | 1.1 |
| qiye.21cn.com | 1 |
| focus.21cn.com | 1 |
| corp-webmail-ssl.21cn.com | 1 |
| igame.21cn.com | 1 |
| k.21cn.com | 1 |
| other | 0.75 |
| Subdomain | Reach |
|---|---|
| mail.21cn.com | 32.73% |
| 21cn.com | 23.48% |
| ts.21cn.com | 23.06% |
| news.21cn.com | 11.25% |
| 189.21cn.com | 6.66% |
| it.21cn.com | 3.65% |
| k.21cn.com | 3.6% |
| igame.21cn.com | 3.57% |
| focus.21cn.com | 2.99% |
| corp-webmail-ssl.21cn.com | 2.24% |
| other | 6.15% |
How popular is 21cn.com?
| Period | Global Rank | Global Rank Delta |
|---|---|---|
| past 3 months | 15848 | -158 |
| past month | 17376 | 368 |
| past week | 17831 | -531 |
| yesterday | 20554 | 8778 |
| Days | Pageviews Rank | Pageviews Rank Delta | Pageviews per Million | Pageviews per Million Delta | Pageviews per User | Pageviews per User Delta |
|---|---|---|---|---|---|---|
| 90 | 22191 | 1070 | 323 | -6.169% | 2.1 | -7.556% |
| 30 | 20493 | -3586 | 35 | 20% | 2.8 | 30% |
| 7 | 21215 | -1949 | 34 | 10% | 2.8 | 10% |
| 1 | 30749 | 16326 | 24 | -56.271% | 2 | -30.21% |
| Days | Reach Rank | Reach Rank Delta | Reach per Million | Reach per Million Delta |
|---|---|---|---|---|
| 90 | 14625 | -498 | 58 | 1% |
| 30 | 17466 | 1860 | 47 | -12.47% |
| 7 | 17989 | 86 | 46 | 0.3% |
| 1 | 18869 | 6910 | 50 | -37.46% |
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 ConnectSafe evaluates 21cn.com for any unsafe and insecure content. The results are critical for families with young children.
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.
Malware: not found.
Phishing: not detected.
Unwanted software: not found.
Harmfull applications: not found.
Google Safe Browsing notifies when websites are compromised by malicious actors. These protections work across Google products and provide a safer online experience.
McAfee assesses 21cn.com 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 21cn.com for mature or inappropriate content, only security checks are evaluated.
The WOT calculates reputation of the 21cn.com. This reputation system receives ratings from users and information from third-party sources, assesses the 21cn.com for safety features and confirms, whether 21cn.com is suitable for children.
| Domain | *.21cn.com |
| Issuer Organization | Unknown |
| Issuer | GeoTrust RSA CA 2018 |
| Algorithm | RSA-SHA256 |
| Valid form | 12/07/2017 |
| Expiration | 02/05/2019 |
| Signed | Certificate is not self signed |
| Additional Domains |
*.21cn.com 21cn.com |
ASN ID: 58519
ASN Title: CHINATELECOM-CTCLOUD Cloud Computing Corporation, CN
Last Update: 09/25/2023
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# Copyright 1997-2018, American Registry for Internet Numbers, Ltd.
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No match found for a 58519.
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# ARIN WHOIS data and services are subject to the Terms of Use
# available at: https://www.arin.net/whois_tou.html
#
# If you see inaccuracies in the results, please report at
# https://www.arin.net/resources/whois_reporting/index.html
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# Copyright 1997-2018, American Registry for Internet Numbers, Ltd.
#
Domain Name: 21CN.COM
Registry Domain ID: 3541295_DOMAIN_COM-VRSN
Registrar WHOIS Server: whois.35.com
Registrar URL: http://www.35.com
Updated Date: 2020-04-26T09:12:20Z
Creation Date: 1999-02-08T05:00:00Z
Registry Expiry Date: 2027-02-08T05:00:00Z
Registrar: Xiamen 35.Com Technology Co., Ltd.
Registrar IANA ID: 1316
Registrar Abuse Contact Email: domainabuse@35.cn
Registrar Abuse Contact Phone: +86.4001353511
Domain Status: ok https://icann.org/epp#ok
Name Server: VIP3.ALIDNS.COM
Name Server: VIP4.ALIDNS.COM
DNSSEC: unsigned
URL of the ICANN Whois Inaccuracy Complaint Form: https://www.icann.org/wicf/
>>> Last update of whois database: 2021-04-24T20:08:36Z
| Host | A Record | TTL |
|---|---|---|
| 21cn.com | 59.36.102.187 | 600 |
| Host | MX Record | Priority | TTL |
|---|---|---|---|
| 21cn.com | mta.21cn.com | 10 | 3600 |
| Host | NS Record | TTL |
|---|---|---|
| 21cn.com | cdnns.21cn.com | 300 |
| Host | TXT Record | TTL |
|---|---|---|
| 21cn.com | v=spf1 include:mail-spf.21cn.com ip4:52.8.52.154 ip4:52.8.239.192 ip4:52.74.103.30 ip4:52.74.147.196 -all | 3600 |
cdnns4.21cn.com
TTL: 36000
Email address: root.cdnns4.21cn.com
Serial: 2019080601
Refresh: 600
Retry: 1200
Expire: 36000
Minimum: 36000
Last tested: 04/30/2017
| Total Resources | 102 |
| Number of Hosts | 13 |
| Static Resources | 85 |
| JavaScript Resources | 23 |
| CSS Resources | 1 |
Last tested: 06/12/2016
| Total Resources | 73 |
| Number of Hosts | 28 |
| Static Resources | 41 |
| JavaScript Resources | 22 |
| CSS Resources | 3 |
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