Sdtbu.edu.cn belongs to ERX-CERNET-BKB China Education and Research Network Center, CN. Check the list of other websites hosted by ERX-CERNET-BKB China Education and Research Network Center, CN.
In terms of rank-to-traffic ratio, sdtbu.edu.cn has 2,326 unique users per day, viewing 4,652 pages. The rank based value of sdtbu.edu.cn is 3,370 USD. Every user makes 2.14 pageviews on average.
Sdtbu.edu.cn boasts a link base consisting of 285 referring domains and 307 external backlinks, as revealed by the data obtained from web network scanning.
Sdtbu.edu.cn top-level domain belongs to .CN domain zone. Check other webpages in .CN zone.
According the last verification test in October 06, 2023, sdtbu.edu.cn has an expired SSL certificate issued by DigiCert Inc (expired on July 27, 2024). Click button “Update” SSL Information at the Safety Information section. Check the list of websites using SSL by DigiCert Inc.
Based on data from Google Safe Browsing and Symantec sdtbu.edu.cn is a fairly safe domain.
Based on Mobile-Friendly test by Google sdtbu.edu.cn is poorly optimized for mobile phones and tablets. Remember that optimizing your website design for mobile devices ensures that all of your web pages perform well on all devices, page loading speed can also be accelerated.
Domain | www.sdtbu.edu.cn |
Issuer Organization | DigiCert Inc |
Issuer | DigiCert Basic EV RSA CN CA G2 |
Algorithm | RSA-SHA256 |
Valid form | 07/21/2023 |
Expiration | 07/27/2024 |
Signed | Certificate is not self signed |
Additional Domains |
www.sdtbu.edu.cn cas.sdtbu.edu.cn zhss.sdtbu.edu.cn |
Alexa Rank shows how popular sdtbu.edu.cn is in comparison with other sites. The most popular site has Alexa Rank equals 1. If sdtbu.edu.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 sdtbu.edu.cn and pageviews on sdtbu.edu.cn over the past 3 months.
ASN ID: 4538
ASN Title: ERX-CERNET-BKB China Education and Research Network Center, CNLast Update: 10/27/2024
% [whois.apnic.net]
% Whois data copyright terms http://www.apnic.net/db/dbcopyright.html
% Information related to 'AS4538'
% Abuse contact for 'AS4538' is 'abuse@net.edu.cn'
aut-num: AS4538
as-name: ERX-CERNET-BKB
descr: China Education and Research Network Center
descr: Tsinghua University
descr: Beijing 100084
country: CN
admin-c: JW410-AP
tech-c: JW410-AP
remarks: This aut-num object created as part of
remarks: the ER-Transfer from ARIN
mnt-by: MAINT-CERNET-AP
mnt-irt: IRT-CERNET-AP
mnt-routes: MAINT-CERNET-AP
last-modified: 2016-10-17T00:30:08Z
source: APNIC
irt: IRT-CERNET-AP
address: Network Research Center,
address: Main Bldg, Tsinghua Univ
address: Beijing 100084, China
phone: +86-10-62784301
fax-no: +86-10-62785933
e-mail: abuse@net.edu.cn
abuse-mailbox: abuse@net.edu.cn
admin-c: CER-AP
tech-c: CER-AP
auth: # Filtered
remarks: timezone GMT+8
remarks: http://www.ccert.edu.cn
mnt-by: MAINT-CERNET-AP
last-modified: 2010-11-26T03:14:01Z
source: APNIC
person: Jianping Wu
address: China Education and Research Network Center
address: Tsinghua University
address: Beijing 100084
country: CN
phone: +86-10-2595931
e-mail: jianping@CERNET.EDU.CN
nic-hdl: JW410-AP
remarks: This person object created as part of the ER-Transfer from ARIN
mnt-by: MAINT-CN-CERNET
last-modified: 2008-09-04T07:29:20Z
source: APNIC
% This query was served by the APNIC Whois Service version 1.88.15-46 (WHOIS-US3)
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