csdn.net ▷ CSDN-专业IT技术社区

Quick Summary

Online Status

Offline

Server IP address resolved: No
Http response code: None
Last Checked: 10/30/2024

Csdn.net traffic volume is 6,099,255 unique daily visitors and their 27,324,661 pageviews. The web value rate of csdn.net is 359,045,113 USD. Each visitor makes around 4.79 page views on average.

By Alexa's traffic estimates csdn.net placed at 830 position over the world, while the largest amount of its visitors comes from China, where it takes 8 place.

Perfect for csdn.net that their data center (provided by company company HWCSNET Huawei Cloud Service data center, CN) is located in China, as that empowers most of the visitors to reduce the page load time. See the list of other web pages hosted by HWCSNET Huawei Cloud Service data center, CN.

Csdn.net registered under .NET top-level domain. Check other websites in .NET zone.

The last verification results, performed on (September 22, 2024) csdn.net show that csdn.net has a valid and up-to-date wildcard SSL certificate issued by DigiCert Inc expiring on December 03, 2024. Click “Refresh” button for SSL Information at the Safety Information section. Check the list of websites using SSL certificates issued by DigiCert Inc.

In accordance with Google Safe Browsing, Google Safe Search, Symantec and Web of Trust csdn.net is pretty a safe domain.

Relying Google MobileFriendly test csdn.net is well optimized for mobile and tablet devices, however web page loading speed may be improved.

Csdn.net General Information

Global Rank

Average Load Time

1.56sec

Links In Count

10,648

Website Value

$335.6 M

Audience Geography. Where are csdn.net visitors located?

Country	Visitors
China CN	96.6%
Japan JP	0.7%
United States US	0.7%
Hong Kong HK	0.7%
Other	1.3%

Country	Pageviews
China CN	97.4%
Hong Kong HK	0.7%
United States US	0.6%
Japan JP	0.5%
Other	0.8%

Country	Rank
China CN	8
Hong Kong HK	22
Japan JP	251
United States US	535

Where do visitors go on csdn.net?

Subdomain	Pageviews
blog.csdn.net	87.72%
csdn.net	3.6%
download.csdn.net	2.89%
link.csdn.net	1.59%
so.csdn.net	1.19%
bbs.csdn.net	0.63%
passport.csdn.net	0.46%
ask.csdn.net	0.36%
im.csdn.net	0.36%
mp.csdn.net	0.31%
other	0.9%

Subdomain	Pageviews per User
c.csdn.net	6
blog.csdn.net	4.97
edu.csdn.net	3
mp.csdn.net	2.4
im.csdn.net	2.1
download.csdn.net	1.65
i.csdn.net	1.5
editor.csdn.net	1.3
csdn.net	1.29
ask.csdn.net	1.2
other	0.9

Subdomain	Reach
blog.csdn.net	97.3%
csdn.net	15.41%
download.csdn.net	9.67%
link.csdn.net	8.77%
so.csdn.net	6.49%
bbs.csdn.net	2.98%
passport.csdn.net	2.15%
ask.csdn.net	1.69%
i.csdn.net	1.03%
im.csdn.net	0.91%
other	1.69%

How popular is csdn.net?

Period	Global Rank	Global Rank Delta
past 3 months	27	4
past month	20	-17
past week	18	-1
yesterday	16	1

Days	Pageviews Rank	Pageviews Rank Delta	Pageviews per Million	Pageviews per Million Delta	Pageviews per User	Pageviews per User Delta
90	28	1	1742	-7.104%	4.48	3%
30	16	-27	2795	184%	5.51	50.5%
7	15	-2	3490	24%	5.78	6%
1	13	1	3920	-11.02%	5.4	-1.28%

Days	Reach Rank	Reach Rank Delta	Reach per Million	Reach per Million Delta
90	28	5	13500	-9.649%
30	21	-13	19300	88.4%
7	19	-3	22200	17%
1	16	1	25000	-9.847%

Csdn.net Safety Information

Overview

Last Updated: 10/30/2024

Overall result - csdn.net 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: 07/01/2024

csdn.net is safe.

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

Google Safe Search

Last Updated: 10/30/2024

csdn.net 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: 06/23/2022

csdn.net 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: 06/23/2022

csdn.net is safe.

McAfee assesses csdn.net 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 csdn.net for mature or inappropriate content, only security checks are evaluated.

Web of Trust

Last Updated: 01/09/2019

csdn.net child safety is very good.

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

SSL Information

SSL Checker Tool

Domain	*.csdn.net
Issuer Organization	DigiCert Inc
Issuer	GeoTrust CN RSA CA G1
Algorithm	RSA-SHA256
Valid form	11/27/2023
Expiration	12/03/2024
Signed	Certificate is not self signed
Additional Domains	*.csdn.net csdn.net

Csdn.net Server Information

Server Location

Geolocation Tool

ASN Information

ASN Lookup Tool

ASN ID: 55990
ASN Title: HWCSNET Huawei Cloud Service data center, CN

Last Update: 09/22/2024

ASN Whois

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

% Information related to 'AS55296 - AS56319'

as-block: AS55296 - AS56319
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: 2009-09-03T01:15:30Z
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 'AS55956 - AS56015'

as-block: AS55956 - AS56015
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: 2010-12-23T23:34:45Z
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 'AS55990'

% Abuse contact for 'AS55990' is 'ipas@cnnic.cn'

aut-num: AS55990
as-name: HWCSNET
descr: Huawei Cloud Service data center
country: CN
admin-c: NZ158-AP
tech-c: MH1129-AP
notify: ipas@cnnic.net.cn
mnt-by: MAINT-CNNIC-AP
mnt-irt: IRT-CNNIC-CN
last-modified: 2012-10-09T06:34:01Z
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: Mingliang Hao
nic-hdl: MH1129-AP
e-mail: mingliang.hao@huawei.com
address: 10/F, Xinsheng Tower, 5 Financial Street,
address: Xincheng District,Beijing,100140 P.R.China
phone: +86-18618305900
fax-no: +86-10-63762415
country: CN
mnt-by: MAINT-CNNIC-AP
last-modified: 2012-10-09T05:34:02Z
source: APNIC

person: Nina Zhao
nic-hdl: NZ158-AP
e-mail: zhaocaina@huawei.com
address: 10/F, Xinsheng Tower, 5 Financial Street,
address: Xincheng District,Beijing,100140 P.R.China
phone: +86-18601351719
fax-no: +86-10-63762415
country: CN
mnt-by: MAINT-CNNIC-AP
last-modified: 2012-10-09T05:34:02Z
source: APNIC

% This query was served by the APNIC Whois Service version 1.88.15-46 (WHOIS-US3)

Csdn.net Domain Name Information

WHOIS

WHOIS Lookup Tool

Domain Whois

Domain Name: CSDN.NET
Registry Domain ID: 4252779_DOMAIN_NET-VRSN
Registrar WHOIS Server: grs-whois.hichina.com
Registrar URL: http://www.net.cn
Updated Date: 2021-12-02T08:57:35Z
Creation Date: 1999-03-11T05:00:00Z
Registry Expiry Date: 2023-03-11T04:00:00Z
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
Domain Status: clientUpdateProhibited https://icann.org/epp#clientUpdateProhibited
Name Server: VIP3.ALIDNS.COM
Name Server: VIP4.ALIDNS.COM
DNSSEC: unsigned
URL of the ICANN Whois Inaccuracy Complaint Form: https://www.icann.org/wicf/
>>> Last update of whois database: 2022-05-14T06:06:20Z

DNS Records

DNS Lookup Tool

Host	A Record	TTL
csdn.net	124.70.25.132	600

Host	MX Record	Priority	TTL
csdn.net	mxbiz1.qq.com	5	600
csdn.net	mxbiz2.qq.com	10	600

Host	NS Record	TTL
csdn.net	vip4.alidns.com	86400
csdn.net	vip3.alidns.com	86400

Host	TXT Record	TTL
csdn.net	aliyun-site-verification=019d4b53-d811-47df-8312-695fcef366f4	600
csdn.net	MS=31CFB7A983BC11C83514100AA1729972691EDAAF	600
csdn.net	v=spf1 include:spf.mail.qq.com ~all	600
csdn.net	google-site-verification=nn4nvxbYITKfb8-tv-QWw4H7PsjTM6LGvHDeUvrw0hA	600

vip3.alidns.com
TTL: 600
Email address: hostmaster.hichina.com
Serial: 2024083011
Refresh: 3600
Retry: 1200
Expire: 86400
Minimum: 600

Csdn.net HTML Validation

HTML Validation Tool

Warnings

Consider avoiding viewport values that prevent users from resizing documents.

The “type” attribute is unnecessary for JavaScript resources.

The first occurrence of ID “Star-Copy” was here.

The first occurrence of ID “Oval-4” was here.

The first occurrence of ID “Path-53” was here.

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

Consider adding a “lang” attribute to the “html” start tag to declare the language of this document.

Errors

No space between attributes.

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

Element “link” is missing one or more of the following attributes: “itemprop”, “property”, “rel”.

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

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

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

Bad value “760px” for attribute “width” on element “iframe”: Expected a digit but saw “p” instead.

Bad value “90px” for attribute “height” on element “iframe”: Expected a digit but saw “p” instead.

The “frameborder” attribute on the “iframe” element is obsolete. Use CSS instead.

The “scrolling” attribute on the “iframe” element is obsolete. Use CSS instead.

Element “img” is missing required attribute “src”.

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

Bad value “300px” for attribute “width” on element “iframe”: Expected a digit but saw “p” instead.

Stray doctype.

Attribute “shown-offset” not allowed on element “ul” at this point.

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

Bad value “200px” for attribute “height” on element “iframe”: Expected a digit but saw “p” instead.

Bad value “button” for attribute “type” on element “a”: Subtype missing.

Bad value “250px” for attribute “height” on element “iframe”: Expected a digit but saw “p” instead.

No “p” element in scope but a “p” end tag seen.

Attribute “username” not allowed on element “img” at this point.

Duplicate ID “Star-Copy”.

Duplicate ID “Oval-4”.

Duplicate ID “Path-53”.

Stray start tag “script”.

Csdn.net Desktop Insights

Last tested: 06/12/2016

Desktop

Desktop Speed

46%

Optimize images

Enable compression

Leverage browser caching

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

Minify JavaScript

Prioritize visible content

Minify HTML

Minify CSS

Desktop Resource Breakdown

Total Resources	126
Number of Hosts	18
Static Resources	74
JavaScript Resources	23
CSS Resources	4

Csdn.net Mobile Insights

Last tested: 06/12/2016

Mobile

Mobile Usability

100%

Mobile Speed

57%

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

Avoid landing page redirects

Leverage browser caching

Enable compression

Optimize images

Mobile Resource Breakdown

Total Resources	17
Number of Hosts	5
Static Resources	12
JavaScript Resources	4
CSS Resources	1

Csdn.net Typos

www.csdn.com
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Csdn.net CSDN-专业IT技术社区

Quick Summary

Csdn.net General Information

Csdn.net Safety Information

Csdn.net Server Information

Csdn.net Domain Name Information

Csdn.net HTML Validation

Csdn.net Desktop Insights

Csdn.net Mobile Insights

Csdn.net Nearest Competitors

Csdn.net Typos