ustc.edu.cn - 中国科学技术大学

Quick Summary

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.

Ustc.edu.cn General Information

Global Rank

3,484

Average Load Time

3.70sec

Links In Count

4,184

Website Value

$2.5 M

Audience Geography. Where are ustc.edu.cn visitors located?

Country	Rank
China CN	434
Japan JP	9654
India IN	27137
United States US	34079

Country	Percent of Pageviews
China CN	94.6%
Japan JP	1.9%
United States US	1.3%
India IN	0.2%
Other	2%

Country	Percent of Visitors
China CN	91.7%
Japan JP	2.8%
United States US	1.5%
India IN	0.8%
Other	3.1%

Where do visitors go on ustc.edu.cn?

Subdomain	Pageviews
email.ustc.edu.cn	13.01%
mail.ustc.edu.cn	8.23%
ustc.edu.cn	7.4%
wlt.ustc.edu.cn	6.91%
yjs.ustc.edu.cn	6.18%
mirrors.ustc.edu.cn	5.34%
staff.ustc.edu.cn	3.61%
teach.ustc.edu.cn	3.36%
lib.ustc.edu.cn	3.31%
other	42.67%

Subdomain	Pageviews per User
sf.ustc.edu.cn	8
tqms.ustc.edu.cn	8
email.ustc.edu.cn	4
dsxt.ustc.edu.cn	3.7
math.ustc.edu.cn	3.5
hfnl.ustc.edu.cn	3
yz.ustc.edu.cn	3
job.ustc.edu.cn	3
mail.ustc.edu.cn	2.9
lib.ustc.edu.cn	2.8
other	1.66

Subdomain	Reach
ustc.edu.cn	17.21%
email.ustc.edu.cn	16.41%
wlt.ustc.edu.cn	14.42%
mail.ustc.edu.cn	14.1%
yjs.ustc.edu.cn	12.79%
passport.ustc.edu.cn	11.64%
mirrors.ustc.edu.cn	10.87%
staff.ustc.edu.cn	7.61%
bbs.ustc.edu.cn	6.34%
teach.ustc.edu.cn	6.26%
other	65.08%

How popular is ustc.edu.cn?

Days	Reach Rank	Reach Rank Delta	Reach per Million	Reach per Million Delta
90	4092	324	196	-12.74%
30	4344	572	180	-12.87%
7	2873	-2256	270	69%
1	2223	-405	350	20%

Days	Pageviews Rank	Pageviews Rank Delta	Pageviews per Million	Pageviews per Million Delta	Pageviews per User	Pageviews per User Delta
90	2782	492	263	-20.6%	4.98	-8.958%
30	2910	211	251	-7.52%	5	6%
7	1668	-2176	422	110%	5.7	30%
1	1472	-474	50	30%	5	10%

Period	Global Rank	Global Rank Delta
past 3 months	3484	454
past month	3670	413
past week	2349	-2070
yesterday	1837	-451

Ustc.edu.cn Alexa Rank History

Alexa Rank shows how popular ustc.edu.cn is in comparison with other sites. The most popular site has Alexa Rank equals 1. If ustc.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 ustc.edu.cn and pageviews on ustc.edu.cn over the past 3 months.

Ustc.edu.cn Safety Information

Overview

Last Updated: 04/19/2024

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: 04/19/2024

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

SSL Checker Tool

Domain	ustc.edu.cn
Issuer Organization	Let's Encrypt
Issuer	Let's Encrypt Authority X3
Algorithm	RSA-SHA256
Valid form	11/03/2019
Expiration	02/01/2020
Signed	Certificate is not self signed
Additional Domains	ustc.edu.cn

Ustc.edu.cn Server Information

Server Location

Geolocation Tool

Hefei

Anhui

China

ASN Information

ASN Lookup Tool

ASN ID: 24362
ASN Title: CNGI-HEF-IX-AS-AP CERNET2 IX at University of Science and Technology of China, CN

Last Update: 10/02/2023

ASN Whois

% [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)

Ustc.edu.cn Domain Name Information

WHOIS

WHOIS Lookup Tool

Domain Whois

Out of this registry.

DNS Records

DNS Lookup Tool

Host	A Record	TTL
ustc.edu.cn	202.38.64.246	3600

Host	MX Record	Priority	TTL
ustc.edu.cn	smtp.ustc.edu.cn	10	3600
ustc.edu.cn	smtp2.ustc.edu.cn	10	3600
ustc.edu.cn	smtp1.ustc.edu.cn	5	3600

Host	NS Record	TTL
ustc.edu.cn	mx.ustc.edu.cn	3600
ustc.edu.cn	ns.ustc.edu.cn	3600

Host	TXT Record	TTL
ustc.edu.cn	google-site-verification=n_uAijUqmjntOJL0L8N4SIIdw_3cAngmXFBIYgIDNkg	3600
ustc.edu.cn	v=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 ~all	3600
ustc.edu.cn	MS=ms26813611	3600

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

Ustc.edu.cn HTML Validation

HTML Validation Tool

Errors

A “meta” element with an “http-equiv” attribute whose value is “X-UA-Compatible” must have a “content” attribute with the value “IE=edge”.

Attribute “sudy-wp-context” not allowed on element “script” at this point.

Attribute “sudy-wp-siteid” not allowed on element “script” at this point.

Attribute “oldsrc” not allowed on element “script” at this point.

Attribute “oldid” not allowed on element “script” at this point.

Attribute “ignoreapd” not allowed on element “script” at this point.

Attribute “oldsrc” not allowed on element “link” at this point.

Attribute “oldid” not allowed on element “link” at this point.

Attribute “ignoreapd” not allowed on element “link” at this point.

An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.

Element “object” is missing one or more of the following attributes: “data”, “type”.

The “classid” attribute on the “object” element is obsolete. Use the “data” and “type” attributes to invoke plugins. To set a parameter with the name “classid”, use the “param” element.

The “codebase” attribute on the “object” element is obsolete. Use the “data” and “type” attributes to invoke plugins. To set a parameter with the name “codebase”, use the “param” element.

Stray end tag “embed”.

Attribute “frag” not allowed on element “div” at this point.

Attribute “frag” not allowed on element “ul” at this point.

Attribute “portletmode” not allowed on element “ul” at this point.

Element “div” not allowed as child of element “ul” in this context. (Suppressing further errors from this subtree.)

Stray start tag “img”.

Cannot recover after last error. Any further errors will be ignored.

Warnings

Consider avoiding viewport values that prevent users from resizing documents.

The “language” attribute on the “script” element is obsolete. You can safely omit it.

Empty heading.

Ustc.edu.cn Desktop Insights

Desktop Page Insights Tool

Last tested: 07/10/2016

Desktop

Desktop Speed

79%

Leverage browser caching

Eliminate render-blocking JavaScript and CSS in above-the-fold content

Enable compression

Minify HTML

Desktop Resource Breakdown

Total Resources	25
Number of Hosts	6
Static Resources	22
JavaScript Resources	3

Ustc.edu.cn Mobile Insights

Mobile Page Insights Tool

Last tested: 07/10/2016

Mobile

Mobile Usability

100%

Mobile Speed

58%

Eliminate render-blocking JavaScript and CSS in above-the-fold content

Leverage browser caching

Enable compression

Minify HTML

Minify CSS

Mobile Resource Breakdown

Total Resources	24
Number of Hosts	4
Static Resources	19
JavaScript Resources	5
CSS Resources	1

Ustc.edu.cn Typos

www.ustc.com
www.ustc.net
www.ustc.org
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Ustc.edu.cn 中国科学技术大学

Quick Summary

Ustc.edu.cn General Information

Ustc.edu.cn Alexa Rank History

Ustc.edu.cn Safety Information

Ustc.edu.cn Server Information

Ustc.edu.cn Domain Name Information

Ustc.edu.cn HTML Validation

Ustc.edu.cn Desktop Insights

Ustc.edu.cn Mobile Insights

Ustc.edu.cn Nearest Competitors

Ustc.edu.cn Typos