2cto.com 红黑联盟（2cto.com)_IT技术门户、技术安全资讯、网络安全、黑客防御、信息安全、编程开发、系统知识

红黑联盟作为老牌的信息安全网站,我们致力于培训电脑技术高手.网站集网络安全,系统网络,编程开发,网站建设等频道于一体,为您提供从基础到高端的信息技术学习平台

2cto.com Overview

2cto.com is a well-known and established website that provides IT-related information to its users. The website is called 红黑联盟, which can be translated into English as the "Red and Black Alliance." It is a comprehensive IT portal that covers a wide variety of topics, including information security, network security, programming, and website development. The website aims to provide a platform for individuals and businesses to learn the latest technologies and grow their IT skills.

The website is primarily hosted in the CHINANET-SCIDC-AS-AP data center in Sichuan, China. It operates under a .COM Top Level Domain, which signifies its global relevance and reach. The site also features an SSL certificate from Let's Encrypt, which guarantees the safety and security of user data.

The web analytics tool, SimilarWeb, reports that the website attracts over 103,000 unique users daily, and 161,000 page views. The site's overall value, as estimated by WorthOfWeb, is around 2115540 US dollars, which is excellent.

On the website, users can access a plethora of information and articles related to different tech topics, and the site is straightforward to navigate. The homepage features the latest news articles and highlights from the different technology sectors. The website has several channels, each dedicated to a specific tech topic or genre, and users can access them using the main menu or the dropdown menus.

Unfortunately, the site's PageScore Insight score isn't the best, with a score of 33 out of 100, indicating that it needs to be optimized to improve its loading speed. Page speed is critical in improving user experience, reducing bounce rates, and ultimately increasing traffic to the website.

In conclusion, 2cto.com is a reliable and valuable resource for IT professionals and enthusiasts. It provides users with access to the latest tech trends, news, and developments, which is conveyed through clear, concise, and well-structured articles. Furthermore, the site's user-friendly interface makes it easy to navigate and find the desired content. Although the site needs to work on improving its speed, it remains a top-rated information destination for those interested in the IT industry.

2cto.com Rank Summary

Global Rank

4,284

Average Load Time

4.02sec

Links In Count

835

Website Value

$2.1 M

Audience Geography. Where are 2cto.com visitors located?

Country	Visitors
China CN	98.7%
Japan JP	0.6%
Other	0.7%

Country	Pageviews
China CN	99.1%
Japan JP	0.4%
Other	0.5%

Country	Rank
China CN	516
Japan JP	46566

Where do visitors go on 2cto.com?

Subdomain	Pageviews
2cto.com	86.09%
home.2cto.com	3.9%
book.2cto.com	3.13%
m.2cto.com	2.65%
zz.2cto.com	2.43%
bbs.2cto.com	1.81%

Subdomain	Pageviews per User
2cto.com	1.5
home.2cto.com	1.1
bbs.2cto.com	1
zz.2cto.com	1
m.2cto.com	1
book.2cto.com	1

Subdomain	Reach
2cto.com	96.43%
home.2cto.com	5.63%
book.2cto.com	5.02%
m.2cto.com	4.32%
zz.2cto.com	3.97%
bbs.2cto.com	2.95%

How popular is 2cto.com?

Period	Global Rank	Global Rank Delta
past 3 months	4284	-638
past month	4786	592
past week	4214	-514
yesterday	3976	-1425

Days	Pageviews Rank	Pageviews Rank Delta	Pageviews per Million	Pageviews per Million Delta	Pageviews per User	Pageviews per User Delta
90	7799	-1164	966	12%	1.56	5%
30	8385	598	893	-8.506%	1.6	7%
7	7598	-605	10	6%	1.6	-5.294%
1	7636	-788	11	10%	1.5	-25%

Days	Reach Rank	Reach Rank Delta	Reach per Million	Reach per Million Delta
90	3467	-460	229	6%
30	3938	583	200	-15.08%
7	3462	-482	230	10%
1	3194	-1640	250	50%

2cto.com Website Safety

Overview

Last Updated: 04/19/2025

Overall result - 2cto.com 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: 03/21/2025

2cto.com is safe.

Norton ConnectSafe evaluates 2cto.com for any unsafe and insecure content. The results are critical for families with young children.

Google Safe Search

Last Updated: 02/06/2019

2cto.com 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

2cto.com 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

2cto.com is safe.

McAfee assesses 2cto.com 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 2cto.com for mature or inappropriate content, only security checks are evaluated.

Web of Trust

Last Updated: 01/09/2019

2cto.com child safety is poor.

The WOT calculates reputation of the 2cto.com. This reputation system receives ratings from users and information from third-party sources, assesses the 2cto.com for safety features and confirms, whether 2cto.com is suitable for children.

SSL Information

SSL Checker Tool

Domain	2cto.com
Issuer Organization	TrustAsia Technologies, Inc.
Issuer	TrustAsia RSA DV TLS CA G2
Algorithm	RSA-SHA384
Valid form	10/12/2024
Expiration	01/10/2025
Signed	Certificate is not self signed
Additional Domains	2cto.com www.2cto.com

2cto.com Rank History

Alexa Rank shows how popular 2cto.com is in comparison with other sites. The most popular site has Alexa Rank equals 1. If 2cto.com 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 2cto.com and pageviews on 2cto.com over the past 3 months.

2cto.com Hosting Information

Server Location

Geolocation Tool

ASN Information

ASN Lookup Tool

ASN ID: 55720

ASN Title: Gigabit Hosting Sdn Bhd

Last Update: 04/10/2025

% [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 'AS55720'

% Abuse contact for 'AS55720' is 'abuse@colo.my'

aut-num: AS55720
as-name: GIGABIT-MY
descr: Gigabit Hosting Sdn Bhd
descr: Kuala Lumpur
country: MY
org: ORG-GHSB1-AP
admin-c: GHSB1-AP
tech-c: GHSB1-AP
mnt-routes: MAINT-GIGABIT-MY
mnt-by: MAINT-GIGABIT-MY
mnt-irt: IRT-COLO-MY
last-modified: 2017-10-16T00:18:02Z
source: APNIC

irt: IRT-COLO-MY
address: Malaysia
e-mail: abuse@colo.my
abuse-mailbox: abuse@colo.my
admin-c: GHSB1-AP
tech-c: GHSB1-AP
auth: # Filtered
mnt-by: MAINT-GIGABIT-MY
last-modified: 2011-06-04T11:30:07Z
source: APNIC

organisation: ORG-GHSB1-AP
org-name: Gigabit Hosting Sdn Bhd
country: MY
address: 5-2, 3rd Mile Square
address: 151, Jalan Klang Lama
phone: +603-7927-9149
e-mail: abuse@thegigabit.com
mnt-ref: APNIC-HM
mnt-by: APNIC-HM
last-modified: 2017-08-29T23:20:58Z
source: APNIC

role: GIGABIT HOSTING SDN BHD - Network Administrator
address: 26-1, Jalan Awan Makmur, Taman OUG Square, 58100, Kuala Lumpur, Malaysia
country: MY
phone: +603-77818733
e-mail: support@thegigabit.com
admin-c: GHSB1-AP
tech-c: GHSB1-AP
nic-hdl: GHSB1-AP
mnt-by: MAINT-GIGABIT-MY
last-modified: 2010-08-16T07:59:29Z
source: APNIC

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

2cto.com Domain Registration and Settings

WHOIS

WHOIS Lookup Tool

Domain Name: 2CTO.COM
Registry Domain ID: 1658431263_DOMAIN_COM-VRSN
Registrar WHOIS Server: whois.22.cn
Registrar URL: http://www.22.cn
Updated Date: 2024-07-15T02:42:38Z
Creation Date: 2011-05-27T14:11:24Z
Registry Expiry Date: 2026-05-27T14:11:24Z
Registrar: 22net, Inc.
Registrar IANA ID: 1555
Registrar Abuse Contact Email: abuse@22.cn
Registrar Abuse Contact Phone: +86.571.88276020
Domain Status: clientDeleteProhibited https://icann.org/epp#clientDeleteProhibited
Domain Status: clientTransferProhibited https://icann.org/epp#clientTransferProhibited
Name Server: HEADER.DNSPOD.NET
Name Server: IRIS.DNSPOD.NET
DNSSEC: unsigned
URL of the ICANN Whois Inaccuracy Complaint Form: https://www.icann.org/wicf/
>>> Last update of whois database: 2024-09-09T12:52:10Z

DNS Records

DNS Lookup Tool

Host	A Record	TTL
2cto.com	2cto.com.a1-anti-ddos.com	300

Host	MX Record	Priority	TTL
2cto.com		2cto.com.a1-anti-ddos.com.	300

Host	NS Record	TTL
2cto.com	f1g1ns2.dnspod.net	86400
2cto.com	f1g1ns1.dnspod.net	86400

Host	TXT Record	TTL
2cto.com		300

f1g1ns1.dnspod.net
TTL: 600
Email address: freednsadmin.dnspod.com
Serial: 1563611783
Refresh: 3600
Retry: 180
Expire: 1209600
Minimum: 180

2cto.com HTML Check

HTML Validation Tool

Errors

Malformed byte sequence: “ba”.

Malformed byte sequence: “ec”, “ba”.

Malformed byte sequence: “da”.

Malformed byte sequence: “c1”.

Malformed byte sequence: “aa”.

Malformed byte sequence: “c3”.

Malformed byte sequence: “a8”.

Malformed byte sequence: “bc”.

Malformed byte sequence: “ca”.

Malformed byte sequence: “f5”.

Malformed byte sequence: “a7”.

Malformed byte sequence: “a1”.

Malformed byte sequence: “a2”.

Malformed byte sequence: “b0”.

Malformed byte sequence: “b2”.

Malformed byte sequence: “d7”.

Malformed byte sequence: “cd”.

Malformed byte sequence: “f8”.

Malformed byte sequence: “c2”.

Malformed byte sequence: “c0”.

Malformed byte sequence: “d3”.

Malformed byte sequence: “f9”.

Malformed byte sequence: “d0”.

Malformed byte sequence: “c5”.

Malformed byte sequence: “b1”.

Malformed byte sequence: “e0”, “b3”.

Malformed byte sequence: “b7”.

Malformed byte sequence: “cb”.

Malformed byte sequence: “f7”.

Malformed byte sequence: “cf”.

Malformed byte sequence: “c4”.

Malformed byte sequence: “ce”.

Malformed byte sequence: “d2”.

Malformed byte sequence: “c7”.

Malformed byte sequence: “d6”.

Malformed byte sequence: “a6”.

Malformed byte sequence: “e0”.

Malformed byte sequence: “b5”.

Malformed byte sequence: “e7”.

Malformed byte sequence: “b8”.

Malformed byte sequence: “df”.

Malformed byte sequence: “af”.

Malformed byte sequence: “bd”.

Malformed byte sequence: “c9”.

Malformed byte sequence: “e8”, “b5”.

Malformed byte sequence: “c8”.

Malformed byte sequence: “cc”.

Malformed byte sequence: “e5”.

Malformed byte sequence: “fa”.

Malformed byte sequence: “b4”.

Malformed byte sequence: “b6”.

Internal encoding declaration “gb2312” disagrees with the actual encoding of the document (“utf-8”).

Bad value “gb2312” for attribute “charset” on element “meta”: “gb2312” is not a preferred encoding name. The preferred label for this encoding is “gbk”.

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

Malformed byte sequence: “e1”.

Malformed byte sequence: “d4”.

Malformed byte sequence: “d8”.

Malformed byte sequence: “e9”.

Malformed byte sequence: “fd”.

Malformed byte sequence: “be”.

Malformed byte sequence: “e2”.

Malformed byte sequence: “eb”.

Malformed byte sequence: “e4”.

Malformed byte sequence: “eb”, “b9”.

Malformed byte sequence: “fc”.

Malformed byte sequence: “d1”.

Malformed byte sequence: “a3”.

Malformed byte sequence: “a4”.

Malformed byte sequence: “bb”.

Malformed byte sequence: “b3”.

Malformed byte sequence: “bf”.

Malformed byte sequence: “db”.

Malformed byte sequence: “c6”.

Malformed byte sequence: “e3”.

Malformed byte sequence: “ef”.

Malformed byte sequence: “e2”, “bb”.

Malformed byte sequence: “e8”.

Malformed byte sequence: “ab”.

Malformed byte sequence: “a5”.

Malformed byte sequence: “fe”.

Malformed byte sequence: “f3”.

Malformed byte sequence: “dc”.

Malformed byte sequence: “b9”.

Malformed byte sequence: “d9”.

Malformed byte sequence: “d5”.

Malformed byte sequence: “f4”.

Malformed byte sequence: “eb”, “b6”.

Malformed byte sequence: “ec”, “b5”.

Malformed byte sequence: “ac”.

Malformed byte sequence: “ee”, “bf”.

Malformed byte sequence: “dd”.

Malformed byte sequence: “f2”.

Malformed byte sequence: “f0”.

Malformed byte sequence: “fb”.

Malformed byte sequence: “f1”.

Malformed byte sequence: “ea”, “b5”.

Malformed byte sequence: “f6”.

Malformed byte sequence: “ed”.

Malformed byte sequence: “e2”, “b7”.

Malformed byte sequence: “ee”, “bd”.

Malformed byte sequence: “a9”.

Malformed byte sequence: “e9”, “bc”.

Malformed byte sequence: “e2”, “be”.

Malformed byte sequence: “e4”, “bd”.

Warnings

Document uses the Unicode Private Use Area(s), which should not be used in publicly exchanged documents. (Charmod C073)

NON-DOCUMENT-ERROR

Too many messages.

2cto.com Desktop Performance

Last tested: 07/27/2017

Desktop Speed

60%

Optimize images

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

Leverage browser caching

Enable compression

Minify JavaScript

Desktop Resource Breakdown

Total Resources	67
Number of Hosts	10
Static Resources	63
JavaScript Resources	15
CSS Resources	1

2cto.com Mobile Insights

Last tested: 02/19/2017

Mobile Usability

95%

Size content to viewport

Size tap targets appropriately

Mobile Speed

33%

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

Optimize images

Avoid landing page redirects

Prioritize visible content

Leverage browser caching

Enable compression

Minify JavaScript

Minify CSS

Mobile Resource Breakdown

Total Resources	63
Number of Hosts	19
Static Resources	46
JavaScript Resources	16
CSS Resources	2

2cto.com Common Typos

www.2cto.com
www.2cto.net
www.2cto.org
www.2cto.info
www.2cto.biz
www.2cto.us
www.2cto.mobi
www.cto.com
www.2cto.com
www.2to.com
www.2xto.com
www.2cxto.com
www.2xcto.com
www.2dto.com
www.2cdto.com
www.2dcto.com
www.2fto.com
www.2cfto.com
www.2fcto.com
www.2vto.com
www.2cvto.com
www.2vcto.com
www.2co.com
www.2cro.com
www.2ctro.com
www.2crto.com
www.2cfo.com
www.2ctfo.com
www.2cgo.com
www.2ctgo.com
www.2cgto.com
www.2cyo.com
www.2ctyo.com
www.2cyto.com
www.2ct.com
www.2cti.com
www.2ctoi.com
www.2ctio.com
www.2ctk.com
www.2ctok.com
www.2ctko.com
www.2ctl.com
www.2ctol.com
www.2ctlo.com
www.2ctp.com
www.2ctop.com
www.2ctpo.com
www.2cto.con

2cto.com 红黑联盟（2cto.com)_IT技术门户、技术安全资讯、网络安全、黑客防御、信息安全、编程开发、系统知识

红黑联盟作为老牌的信息安全网站,我们致力于培训电脑技术高手.网站集网络安全,系统网络,编程开发,网站建设等频道于一体,为您提供从基础到高端的信息技术学习平台

2cto.com Overview

2cto.com Rank Summary

2cto.com Website Safety

2cto.com Rank History

2cto.com Hosting Information

2cto.com Domain Registration and Settings

2cto.com HTML Check

2cto.com Desktop Performance

2cto.com Mobile Insights

2cto.com Similar Audits

2cto.com Common Typos