Cdstm.cn 中国数字科技馆

中国数字科技馆是中国科协、教育部、中科院共建的一个基于互联网传播的国家级公益性科普服务平台

Cdstm.cn Overview

China Digital Science and Technology Museum, also known as cdstm.cn, is a national public welfare publishing platform based on internet technology and science communication. The website is a cooperation between the Chinese Association for Science and Technology, the Ministry of Education, and the Chinese Academy of Sciences. Cdstm.cn is designed to provide science popularization services to its users. The website has a daily average of 269,248 unique users and 1,144,304 pageviews. The site has a market value of 15,032,160 USD.

Cdstm.cn is hosted by CHINANET-JS-AS-AP, which is the AS Number responsible for CHINANET'S backbone in the Jiangsu Province. Cdstm.cn has a top-level domain of .CN and an SSL certificate issued by DigiCert Inc.

As a science popularization site, Cdstm.cn is designed for users of all age groups, and hence the site is also family-friendly.

According to Google's PageSpeed Insights, the website has a speed score of 22 out of 100, which is relatively low and implies that the website's performance needs improvement. The low score indicates that there are several possible performance issues that could be hindering the site's loading speed. The site's low speed score may lead to a negative user experience, which is likely to result in a decrease in traffic. Therefore, it is crucial for the site's developers and administrators to review the site's performance and work on optimizing its load time.

In conclusion, Cdstm.cn is a national-level public welfare publishing platform that helps to popularize science and technology in China. The site has a considerable daily average user base, a high page view count, and a significant market value. The site is hosted under CHINANET-JS-AS-AP, has a .CN top-level domain, and uses an SSL certificate issued by DigiCert Inc. Although the website is family-friendly, its speed score is relatively low, and its performance needs to be improved to provide a better user experience.

Cdstm.cn Rank Summary

Global Rank

592

Average Load Time

4.14sec

Links In Count

502

Website Value

$15.0 M

Audience Geography. Where are cdstm.cn visitors located?

Country	Visitors
China CN	98.3%
Japan JP	0.7%
United States US	0.6%
Other	0.4%

Country	Pageviews
China CN	98.3%
Japan JP	0.7%
United States US	0.6%
Other	0.4%

Country	Rank
China CN	85
Japan JP	6425
United States US	17730

Where do visitors go on cdstm.cn?

Subdomain	Pageviews
cdstm.cn	79.52%
cstm.cdstm.cn	16.81%
hd.cdstm.cn	1%
kjg.cdstm.cn	0.69%
volunteer.cdstm.cn	0.38%
amuseum.cdstm.cn	0.3%
submarine.cdstm.cn	0.24%
kpfwpt.cdstm.cn	0.2%
zjbwg.cdstm.cn	0.11%
dg.cdstm.cn	0.09%
other	0.64%

Subdomain	Pageviews per User
cdstm.cn	4.16
amuseum.cdstm.cn	3.5
cstm.cdstm.cn	2.14
job.cdstm.cn	1
resources.cdstm.cn	1
nxyqx.cdstm.cn	1
sshd.cdstm.cn	1
zjbwg.cdstm.cn	1
kpfwpt.cdstm.cn	1
submarine.cdstm.cn	1
other	0.89

Subdomain	Reach
cdstm.cn	91.88%
cstm.cdstm.cn	37.82%
hd.cdstm.cn	4.62%
kjg.cdstm.cn	3.26%
volunteer.cdstm.cn	1.83%
submarine.cdstm.cn	1.15%
kpfwpt.cdstm.cn	0.96%
zjbwg.cdstm.cn	0.53%
resources.cdstm.cn	0.45%
dg.cdstm.cn	0.44%
other	2.82%

How popular is cdstm.cn?

Period	Global Rank	Global Rank Delta
past 3 months	592	-46
past month	549	-70
past week	259	-46
yesterday	233	-42

Days	Pageviews Rank	Pageviews Rank Delta	Pageviews per Million	Pageviews per Million Delta	Pageviews per User	Pageviews per User Delta
90	586	-57	115	12%	4.25	3%
30	496	-157	133	29%	4.81	21%
7	237	-44	279	18%	5	-0.794%
1	184	-130	363	88%	6.2	81%

Days	Reach Rank	Reach Rank Delta	Reach per Million	Reach per Million Delta
90	671	-31	999	8.1%
30	641	-46	1020	6%
7	297	-68	2080	19%
1	273	-15	2200	4%

Cdstm.cn Website Safety

Overview

Last Updated: 12/25/2024

Overall result - cdstm.cn is safe.

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

cdstm.cn is safe.

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

Google Safe Search

Last Updated: 10/10/2016

cdstm.cn is safe.

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

cdstm.cn is safe.
Malware: not found.
Phishing: not detected.
Unwanted software: not found.
Harmfull applications: not found.

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

cdstm.cn is safe.

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

Web of Trust

Last Updated: 12/25/2024

cdstm.cn child safety is unknown.

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

SSL Information

SSL Checker Tool

Domain	*.cdstm.cn
Issuer Organization	TrustAsia Technologies, Inc.
Issuer	TrustAsia OV TLS Pro CA G3
Algorithm	RSA-SHA256
Valid form	03/24/2023
Expiration	04/04/2024
Signed	Certificate is not self signed
Additional Domains	*.cdstm.cn cdstm.cn

Cdstm.cn Rank History

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

Cdstm.cn Hosting Information

Server Location

Geolocation Tool

ASN Information

ASN Lookup Tool

ASN ID: 23650

ASN Title: CHINANET-JS-AS-AP AS Number for CHINANET jiangsu province backbone, CN

Last Update: 07/07/2024

% [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 'AS23644 - AS23690'

as-block: AS23644 - AS23690
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 'AS23650'

% Abuse contact for 'AS23650' is 'anti-spam@ns.chinanet.cn.net'

aut-num: AS23650
as-name: CHINANET-JS-AS-AP
descr: AS Number for CHINANET jiangsu province backbone
country: CN
import: from AS4134
action pref=100;
accept ANY
import: from AS17444
action pref=600;
accept AS17444
export: to AS4134
announce AS23650 AND AS17444
export: to AS17444
announce AS23650
default: to AS4134
action pref=100;
networks ANY
admin-c: CJ186-AP
tech-c: CJ186-AP
notify: ip@jsinfo.net
mnt-by: MAINT-CHINANET-JS
mnt-irt: IRT-CHINANET-CN
mnt-routes: MAINT-CHINANET-JS
last-modified: 2016-10-17T00:30:12Z
source: APNIC

irt: IRT-CHINANET-CN
address: No.31 ,jingrong street,beijing
address: 100032
e-mail: anti-spam@ns.chinanet.cn.net
abuse-mailbox: anti-spam@ns.chinanet.cn.net
admin-c: CH93-AP
tech-c: CH93-AP
auth: # Filtered
mnt-by: MAINT-CHINANET
last-modified: 2010-11-15T00:31:55Z
source: APNIC

role: CHINANET JIANGSU
address: 260 Zhongyang Road,Nanjing 210037
country: CN
phone: +86-25-86588231
phone: +86-25-86588745
fax-no: +86-25-86588104
e-mail: ip@jsinfo.net
remarks: send anti-spam reports to spam@jsinfo.net
remarks: send abuse reports to abuse@jsinfo.net
remarks: times in GMT+8
admin-c: CH360-AP
tech-c: CS306-AP
tech-c: CN142-AP
nic-hdl: CJ186-AP
remarks: www.jsinfo.net
notify: ip@jsinfo.net
mnt-by: MAINT-CHINANET-JS
last-modified: 2011-12-06T02:58:51Z
source: APNIC

% This query was served by the APNIC Whois Service version 1.88.15-46 (WHOIS-US4)

Cdstm.cn Domain Registration and Settings

WHOIS

WHOIS Lookup Tool

Domain Name: cdstm.cn
ROID: 20060428s10001s51215830-cn
Domain Status: ok
Registrant: 中国科学技术馆
Registrant Contact Email: liuhao@cstm.org.cn
Sponsoring Registrar: 商中在线科技股份有限公司
Name Server: ns1.bdydns.cn
Name Server: ns2.bdydns.cn
Registration Time: 2006-04-28 14:25:58
Expiration Time: 2027-04-28 14:25:58
DNSSEC: unsigned

DNS Records

DNS Lookup Tool

Host	A Record	TTL
cdstm.cn	4e4d9bf33e0205c2.cdn.jiashule.com	300

Host	MX Record	Priority	TTL
cdstm.cn		4e4d9bf33e0205c2.cdn.jiashule.com.	300

Host	NS Record	TTL
cdstm.cn	ns1.bdydns.cn	86400
cdstm.cn	ns2.bdydns.cn	86400

Host	TXT Record	TTL
cdstm.cn		300

ns1.bdydns.cn
TTL: 64000
Email address: sa.dudns.com
Serial: 2018082540
Refresh: 5
Retry: 5
Expire: 2592000
Minimum: 3600

Cdstm.cn HTML Check

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”.

A document must not include both a “meta” element with an “http-equiv” attribute whose value is “content-type”, and a “meta” element with a “charset” attribute.

Attribute “href” not allowed on element “li” at this point.

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

End tag “ul” seen, but there were open elements.

Unclosed element “span”.

Element “dl” is missing a required child element.

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

Element “dl” is missing a required instance of child element “dd”.

Bad value “” for attribute “name” on element “input”: Must not be empty.

Attribute “alt” not allowed on element “a” at this point.

Start tag “a” seen but an element of the same type was already open.

End tag “a” violates nesting rules.

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

Warnings

Consider avoiding viewport values that prevent users from resizing documents.

Cdstm.cn Desktop Performance

Last tested: 06/02/2017

Desktop Speed

14%

Optimize images

Leverage browser caching

Enable compression

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

Avoid landing page redirects

Minify CSS

Minify HTML

Minify JavaScript

Reduce server response time

Desktop Resource Breakdown

Total Resources	150
Number of Hosts	13
Static Resources	128
JavaScript Resources	18
CSS Resources	13

Cdstm.cn Mobile Insights

Last tested: 05/20/2017

Mobile Usability

99%

Size tap targets appropriately

Mobile Speed

22%

Optimize images

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

Avoid landing page redirects

Leverage browser caching

Enable compression

Minify HTML

Minify CSS

Reduce server response time

Minify JavaScript

Mobile Resource Breakdown

Total Resources	111
Number of Hosts	12
Static Resources	99
JavaScript Resources	14
CSS Resources	6

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Cdstm.cn 中国数字科技馆

中国数字科技馆是中国科协、教育部、中科院共建的一个基于互联网传播的国家级公益性科普服务平台

Cdstm.cn Overview

Cdstm.cn Rank Summary

Cdstm.cn Website Safety

Cdstm.cn Rank History

Cdstm.cn Hosting Information

Cdstm.cn Domain Registration and Settings

Cdstm.cn HTML Check

Cdstm.cn Desktop Performance

Cdstm.cn Mobile Insights

Cdstm.cn Similar Audits

Cdstm.cn Common Typos