Status
Offline
Server IP address resolved: No
Http response code: None
Last Checked: 04/18/2024
51nb.com traffic estimate is about 31,698 unique visitors and 85,585 pageviews per day. The approximated value of 51nb.com is 1,130,040 USD. Every unique visitor makes about 2.7 pageviews on average.
Alexa Traffic Rank estimates that 51nb.com is ranked number 288,331 in the world, while most of its traffic comes from China, where it occupies as high as 793 place.
51nb.com is registered under .COM top-level domain. Check other websites in .COM zone.
During the last check (November 28, 2019) 51nb.com has an expired SSL certificate issued by DigiCert Inc (expired on June 17, 2020), please click the “Refresh” button for SSL Information at the Safety Information section. Check other websites using SSL certificates issued by DigiCert Inc.
In accordance with Google Safe Browsing, Google Safe Search, Symantec and Web of Trust 51nb.com is pretty a safe domain.
Relying on Google Mobile-Friendly test 51nb.com is well optimized for mobile and tablet devices, however website page loading time may be improved.
Where are website visitors coming from?
| Country | Visitors |
|---|---|
 China CN | 96.6% |
| United States US | 1.1% |
| Hong Kong HK | 0.6% |
| Other | 1.7% |
| Country | Pageviews |
|---|---|
| China CN | 96.6% |
| United States US | 1.1% |
| Hong Kong HK | 0.6% |
| Other | 1.7% |
| Country | Rank |
|---|---|
| China CN | 793 |
| Hong Kong HK | 6173 |
| United States US | 77047 |
Where do visitors go on 51nb.com?
| Subdomain | Pageviews |
|---|---|
| forum.51nb.com | 79.67% |
| 51nb.com | 20.33% |
| Subdomain | Views per User |
|---|---|
| 51nb.com | 2.7 |
| forum.51nb.com | 2.3 |
| Subdomain | Reach |
|---|---|
| forum.51nb.com | 92.12% |
| 51nb.com | 20.06% |
How popular is 51nb.com?
| Period | Global Rank | Global Rank Delta |
|---|---|---|
| past 3 months | 7948 | -257 |
| past month | 7432 | -836 |
| past week | 8851 | 2436 |
| yesterday | 11961 | 6040 |
| Days | Pageviews Rank | Pageviews Rank Delta | Pageviews per Million | Pageviews per Million Delta | Pageviews per User | Pageviews per User Delta |
|---|---|---|---|---|---|---|
| 90 | 9744 | 399 | 774 | -6.677% | 2.7 | -8.191% |
| 30 | 9120 | -528 | 822 | 5% | 2.7 | -5.923% |
| 7 | 12188 | 4149 | 62 | -35.72% | 2.3 | -15.61% |
| 1 | 19899 | 12806 | 38 | -66.763% | 2 | -43.58% |
| Days | Reach Rank | Reach Rank Delta | Reach per Million | Reach per Million Delta |
|---|---|---|---|---|
| 90 | 7908 | -418 | 107 | 2% |
| 30 | 7378 | -972 | 110 | 10% |
| 7 | 8319 | 1994 | 99 | -23.85% |
| 1 | 10263 | 4207 | 80 | -41.3% |
Press rescan to collect fresh statistics for this website...
(Rescan now...)Rankchart Summary
Safe
Updated: 04/18/2024
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
Safe
Updated: 01/09/2021
Norton ConnectSafe evaluates websites for any unsafe and inapropriate content. The results are important for families with young children.
Google Safe Search
Safe
Updated: 02/06/2019
SafeSearch works as a parental control tool to filter out any content that might be inappropriate for your children.
Google Safe Browsing
Safe
Malware not found
Phishing not detected
Unwanted software not found
Harmfull applications not found
Updated: 01/09/2019
Google Safe Browsing notifies when websites are compromised by malicious actors. These protections work across Google products and provide a safer online experience.
McAfee® WebAdvisor
Safe
Updated: 02/22/2021
McAfee assesses 51nb.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 51nb.com for mature or inappropriate content, only security checks are evaluated.
Web of Trust
Child safety is very good
Updated: 01/09/2019
The WOT calculates reputation of the 51nb.com. This reputation system receives ratings from users and information from third-party sources, assesses the 51nb.com for safety features and confirms, whether 51nb.com is suitable for children.
| Domain | www.51nb.com |
| Issuer Organization | DigiCert Inc |
| Issuer | Encryption Everywhere DV TLS CA - G1 |
| Algorithm | RSA-SHA256 |
| Valid form | 06/18/2019 |
| Expiration | 06/17/2020 |
| Signed | Certificate is not self signed |
| Additional Domains | www.51nb.com 51nb.com |
ASN ID: 37963
ASN Title: CNNIC-ALIBABA-CN-NET-AP Hangzhou Alibaba Advertising Co.,Ltd., CN
Updated: 06/08/2021
% [whois.apnic.net]
% Whois data copyright terms http://www.apnic.net/db/dbcopyright.html
% Information related to 'AS37888 - AS38911'
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descr: APNIC ASN block
remarks: These AS numbers are further assigned by APNIC
remarks: to APNIC members and end-users in the APNIC region
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source: APNIC
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country: AU
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last-modified: 2013-10-23T04:06:51Z
source: APNIC
% Information related to 'AS37936 - AS37970'
as-block: AS37936 - AS37970
descr: CNNIC ASN block
country: CN
remarks: These AS numbers are further assigned by CNNIC
remarks: to CNNIC members and end-users in China
admin-c: IPAS1-AP
tech-c: IPAS1-AP
mnt-by: APNIC-HM
mnt-lower: MAINT-CNNIC-AP
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source: APNIC
role: CNNIC IPAS CONFEDERATION
address: No.4, Zhongguancun No.4 South Street,
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e-mail: ipas@cnnic.cn
admin-c: IP50-AP
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nic-hdl: IPAS1-AP
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last-modified: 2013-09-12T07:40:01Z
source: APNIC
% Information related to 'AS37963'
% Abuse contact for 'AS37963' is 'ipas@cnnic.cn'
aut-num: AS37963
as-name: CNNIC-ALIBABA-CN-NET-AP
descr: Hangzhou Alibaba Advertising Co.,Ltd.
descr: East Software Park, 99 Huaxing Rd.
descr: Hangzhou, China
country: CN
admin-c: ZM678-AP
tech-c: ZM877-AP
tech-c: ZM876-AP
tech-c: ZM875-AP
import: from AS4837
action pref=100;
accept ANY
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action pref=100;
accept ANY
export: to AS4837
announce AS37963
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announce AS37963
mnt-routes: MAINT-CNNIC-AP
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mnt-irt: IRT-CNNIC-CN
last-modified: 2013-07-24T02:44:02Z
source: APNIC
irt: IRT-CNNIC-CN
address: Beijing, China
e-mail: ipas@cnnic.cn
abuse-mailbox: ipas@cnnic.cn
admin-c: IP50-AP
tech-c: IP50-AP
auth: # Filtered
remarks: Please note that CNNIC is not an ISP and is not
remarks: empowered to investigate complaints of network abuse.
remarks: Please contact the tech-c or admin-c of the network.
mnt-by: MAINT-CNNIC-AP
last-modified: 2017-11-01T08:57:39Z
source: APNIC
person: Shuo Yu
address: 5F, Builing D, the West Lake International Plaza of S&T
address: No.391 Wen'er Road, Hangzhou City
address: Zhejiang, China, 310099
country: CN
phone: +86-0571-85022600
fax-no: +86-0571-85022600
e-mail: shuo.yus@alibaba-inc.com
e-mail: shuo.yus@aliyun-inc.com
nic-hdl: ZM678-AP
mnt-by: MAINT-CNNIC-AP
last-modified: 2011-11-02T03:36:02Z
source: APNIC
person: Guoxin Gao
address: 5F, Builing D, the West Lake International Plaza of S&T
address: No.391 Wen'er Road, Hangzhou City
address: Zhejiang, China, 310099
country: CN
phone: +86-0571-85022600
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e-mail: anti-spam@list.alibaba-inc.com
nic-hdl: ZM875-AP
mnt-by: MAINT-CNNIC-AP
last-modified: 2014-07-30T01:56:01Z
source: APNIC
person: security trouble
e-mail: cloud-cc-sqcloud@list.alibaba-inc.com
address: 5th,floor,Building D,the West Lake International Plaza of S&T,391#Wen’er Road
address: Hangzhou, Zhejiang, China
phone: +86-0571-85022600
country: CN
mnt-by: MAINT-CNNIC-AP
nic-hdl: ZM876-AP
last-modified: 2013-07-08T02:56:02Z
source: APNIC
person: Guowei Pan
address: 5F, Builing D, the West Lake International Plaza of S&T
address: No.391 Wen'er Road, Hangzhou City
address: Zhejiang, China, 310099
country: CN
phone: +86-0571-85022088-30763
fax-no: +86-0571-85022600
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nic-hdl: ZM877-AP
mnt-by: MAINT-CNNIC-AP
last-modified: 2013-07-09T01:34:02Z
source: APNIC
% This query was served by the APNIC Whois Service version 1.88.15-46 (WHOIS-US4)
| Host | A Record | TTL |
|---|
Information about registered users or assignees of an Internet resource
Domain Name: 51NB.COM
Registry Domain ID: 79781019_DOMAIN_COM-VRSN
Registrar WHOIS Server: grs-whois.hichina.com
Registrar URL: http://www.net.cn
Updated Date: 2021-01-13T01:39:17Z
Creation Date: 2001-11-15T14:10:36Z
Registry Expiry Date: 2026-11-15T14:10:36Z
Registrar: Alibaba Cloud Computing (Beijing) Co., Ltd.
Registrar IANA ID: 420
Registrar Abuse Contact Email: DomainAbuse@service.aliyun.com
Registrar Abuse Contact Phone: +86.95187
Domain Status: ok https://icann.org/epp#ok
Name Server: DNS23.HICHINA.COM
Name Server: DNS24.HICHINA.COM
DNSSEC: unsigned
URL of the ICANN Whois Inaccuracy Complaint Form: https://www.icann.org/wicf/
>>> Last update of whois database: 2021-04-24T22:40:19Z
Website desktop performance and usability tips
Speed
22%
Number and type of the resources loaded from the website:
| Total Resources | 68 |
| Number of Hosts | 3 |
| Static Resources | 62 |
| JavaScript Resources | 7 |
| CSS Resources | 3 |
| CSS | 260.6 KBytes |
| Images | 3.9 MBytes |
| HTML | 69.6 KBytes |
| JavaScript | 441.1 KBytes |
| Other | 462.0 Bytes |
Updated: 10/07/2018
Tips on speeding up mobile site performance
Usability
99%
Speed
20%
Number and type of the resources loaded from the website:
| Total Resources | 68 |
| Number of Hosts | 3 |
| Static Resources | 62 |
| JavaScript Resources | 7 |
| CSS Resources | 3 |
| CSS | 260.6 KBytes |
| Images | 3.9 MBytes |
| HTML | 69.6 KBytes |
| JavaScript | 441.1 KBytes |
| Other | 462.0 Bytes |
Updated: 10/07/2018