/100
Optimization 74/100
51cto.com is a Chinese-based IT technology website that provides a platform for CTOs, IT technology managers, system and network engineers, security engineers, database engineers, network administrators, development engineers, project management personnel, and other IT technology professionals. The website was established to provide the Chinese IT community with a platform to access news, technical documents, BBS, blogs, technology communities, training courses, and talent exchange services.
The website is structured, providing quick and easy navigation through various menus such as Home, technology community, news, training, blog, BBS, job hunting, and several other submenus that are further organized into categories. The website design is clean and user-friendly, with content arranged in a simple and logical manner.
The site is hosted by CNNIC-ALIBABA-CN-NET-AP Hangzhou Alibaba Advertising Co., Ltd, and uses the .COM top-level domain. The SSL certificate is issued by DigiCert, Inc, ensuring safe and secure browsing.
51cto.com is a family-friendly site, with its contents, domains, and activities subjected to the restrictions of the Chinese Government regarding family-friendly content policies.
With 120550 unique users per day, 301375 pageviews, and a site value of 3955140 US dollars, 51cto.com is one of the leading IT technology websites in China. However, the website's PageSpeed Insight scores indicating relatively slow speed of 53 out of 100 and optimization score of 74 out of 100 need optimization to meet up the user's expectations. This suggests the need for continuous optimization to improve user experience and better engagement on the website.
In conclusion, 51cto.com provides a well-structured platform for IT professionals to access news, technical documents, BBS, blogs, technology communities, training courses, and talent exchange services in China. The site's design is clean, user-friendly, family-friendly, and secure, with top-tier hosting and SSL certifications. However, there is still room for optimization improvements to make the site more speed-friendly and boost engagement with users.
Domain | *.51cto.com |
Issuer Organization | DigiCert Inc |
Issuer | GeoTrust CN RSA CA G1 |
Algorithm | RSA-SHA256 |
Valid form | 03/08/2024 |
Expiration | 04/08/2025 |
Signed | Certificate is not self signed |
Additional Domains |
*.51cto.com 51cto.com |
Alexa Rank shows how popular 51cto.com is in comparison with other sites. The most popular site has Alexa Rank equals 1. If 51cto.com 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 51cto.com and pageviews on 51cto.com over the past 3 months.
ASN ID: 37963
ASN Title: CNNIC-ALIBABA-CN-NET-AP Hangzhou Alibaba Advertising Co.,Ltd., CNLast Update: 07/07/2024
% [whois.apnic.net]
% Whois data copyright terms http://www.apnic.net/db/dbcopyright.html
% Information related to 'AS37888 - AS38911'
as-block: AS37888 - AS38911
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: 2009-09-29T06:04:16Z
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 '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
last-modified: 2008-09-04T06:40:26Z
source: APNIC
role: CNNIC IPAS CONFEDERATION
address: No.4, Zhongguancun No.4 South Street,
address: Haidian District, Beijing
country: CN
phone: +86-010-58813000
fax-no: +86-010-58813075
e-mail: ipas@cnnic.cn
admin-c: IP50-AP
tech-c: IP50-AP
nic-hdl: IPAS1-AP
mnt-by: MAINT-CNNIC-AP
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
import: from AS4134
action pref=100;
accept ANY
export: to AS4837
announce AS37963
export: to AS4134
announce AS37963
mnt-routes: MAINT-CNNIC-AP
mnt-by: MAINT-CNNIC-AP
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
fax-no: +86-0571-85022600
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
e-mail: guowei.pangw@alibaba-inc.com
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)
Domain Name: 51CTO.COM
Registry Domain ID: 150614265_DOMAIN_COM-VRSN
Registrar WHOIS Server: grs-whois.hichina.com
Registrar URL: http://www.net.cn
Updated Date: 2023-12-11T07:46:55Z
Creation Date: 2005-04-13T00:38:35Z
Registry Expiry Date: 2025-04-13T00:38:35Z
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: clientTransferProhibited https://icann.org/epp#clientTransferProhibited
Name Server: VIP1.ALIDNS.COM
Name Server: VIP2.ALIDNS.COM
DNSSEC: unsigned
URL of the ICANN Whois Inaccuracy Complaint Form: https://www.icann.org/wicf/
>>> Last update of whois database: 2024-09-09T11:22:44Z
Host | A Record | TTL |
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Host | MX Record | Priority | TTL |
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Host | NS Record | TTL |
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Host | TXT Record | TTL |
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Last tested: 05/05/2017
Total Resources | 142 |
Number of Hosts | 33 |
Static Resources | 108 |
JavaScript Resources | 43 |
CSS Resources | 4 |
Last tested: 12/02/2019
Total Resources | 31 |
Number of Hosts | 12 |
Static Resources | 26 |
JavaScript Resources | 8 |
CSS Resources | 2 |