Ustc.edu.cn 中国科学技术大学

Online Status
Online

Server IP address resolved: Yes
Http response code: 200
Response time: 1.62 sec.
Last Checked: 01/20/2023

Over the time ustc.edu.cn has been ranked as high as 4,055 in the world, while most of its traffic comes from China, where it reached as high as 434 position.

Ustc.edu.cn receives about 38,299 unique visitors and 190,729 pageviews per day. The estimated value of ustc.edu.cn is 2,509,740 USD. Each unique visitor makes about 4.98 pageviews on average.

Ustc.edu.cn is registered under .CN top-level domain. Check other websites in .CN zone.

At the time of the last check (November 28, 2019) ustc.edu.cn has an expired SSL certificate issued by Let's Encrypt (expired on February 01, 2020). Check other websites using SSL certificates issued by Let's Encrypt.

According to Google Safe Browsing, Symantec and Web of Trust ustc.edu.cn is quite a safe domain.

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


Global Rank
3,484
Average Load Time
3.70sec
Links In Count
4,184
Website Value
$2.5 M

Overview
Last Updated: 05/21/2024
Unknown status.
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: 03/21/2024
ustc.edu.cn is safe.

Norton ConnectSafe evaluates ustc.edu.cn for any unsafe and insecure content. The results are critical for families with young children.

Google Safe Search
Last Updated: 05/21/2024
Unknown status.

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 "ustc.edu.cn".
"ustc.edu.cn" is not a phishing page.
"ustc.edu.cn" does not install unwanted software.
"ustc.edu.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
ustc.edu.cn is safe.

McAfee assesses ustc.edu.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 ustc.edu.cn for mature or inappropriate content, only security checks are evaluated.

Web of Trust
Last Updated: 01/09/2019
ustc.edu.cn child safety isvery good.

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

SSL Information
Domain ustc.edu.cn
Issuer OrganizationLet's Encrypt
Issuer Let's Encrypt Authority X3
Algorithm RSA-SHA256
Valid form 11/03/2019
Expiration 02/01/2020
SignedCertificate is not self signed
Additional Domains ustc.edu.cn
Server Location
Hefei
Anhui
China
ASN Information

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

% Information related to 'AS23552 - AS24575'

as-block: AS23552 - AS24575
descr: APNIC ASN block
remarks: These AS numbers are further assigned by APNIC
remarks: to APNIC members and end-users in the APNIC region
remarks: AS23889 has been transfered to AfriNIC
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 'AS24298 - AS24400'

as-block: AS24298 - AS24400
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 'AS24362'

% Abuse contact for 'AS24362' is 'abuse@net.edu.cn'

aut-num: AS24362
as-name: CNGI-HEF-IX-AS-AP
descr: CERNET2 IX at University of Science and Technology of China
descr: CERNET Center
descr: Beijing 100084, China
country: CN
import: from AS23910
action pref=10;
accept ANY
import: from AS4538
action pref=10;
accept ANY
export: to AS23910
announce ANY
export: to AS4538
announce ANY
default: to AS23910
action pref=10;
networks ANY
admin-c: CER-AP
tech-c: CER-AP
remarks: Multihome member of CERNET
mnt-by: APNIC-HM
mnt-irt: IRT-CERNET-AP
mnt-routes: MAINT-CERNET-AP
mnt-lower: MAINT-CERNET-AP
last-modified: 2019-06-09T22:41:35Z
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

role: CERNET Helpdesk
address: Room 224, Main Building
address: Tsinghua University
address: Beijing 100084, China
country: CN
phone: +86-10-6278-4049
fax-no: +86-10-6278-5933
e-mail: cernet-helpdesk-ip@net.edu.cn
remarks: abuse@net.edu.cn
admin-c: XL1-CN
tech-c: SZ2-AP
nic-hdl: CER-AP
remarks: Point of Contact for admin-c
mnt-by: MAINT-CERNET-AP
last-modified: 2011-12-06T00:10:30Z
source: APNIC

% This query was served by the APNIC Whois Service version 1.88.15-47 (WHOIS-US4)

WHOIS

Out of this registry.

DNS Records
HostA RecordTTL
ustc.edu.cn202.38.64.2463600
HostMX RecordPriorityTTL
ustc.edu.cnsmtp.ustc.edu.cn103600
ustc.edu.cnsmtp2.ustc.edu.cn103600
ustc.edu.cnsmtp1.ustc.edu.cn53600
HostNS RecordTTL
ustc.edu.cnmx.ustc.edu.cn3600
ustc.edu.cnns.ustc.edu.cn3600
HostTXT RecordTTL
ustc.edu.cngoogle-site-verification=n_uAijUqmjntOJL0L8N4SIIdw_3cAngmXFBIYgIDNkg3600
ustc.edu.cnv=spf1 ip4:202.38.64.8 ip4:202.38.64.16 ip4:202.38.64.46 ip4:202.141.160.8 ip4:222.195.68.193 ip4:202.141.161.73 ip4:195.128.10.69 ip6:2001:da8:d800::8 ip6:2001:da8:d800::46 ~all3600
ustc.edu.cnMS=ms268136113600

ns.ustc.edu.cn
TTL: 3600
Email address: james.ustc.edu.cn
Serial: 2252
Refresh: 1200
Retry: 900
Expire: 604800
Minimum: 600

Errors
Warnings

Last tested: 07/10/2016

Desktop
Desktop Speed
79%
Desktop Resource Breakdown
Total Resources25
Number of Hosts6
Static Resources22
JavaScript Resources3

Last tested: 07/10/2016

Mobile
Mobile Usability
100%
Mobile Speed
58%
Mobile Resource Breakdown
Total Resources24
Number of Hosts4
Static Resources19
JavaScript Resources5
CSS Resources1
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