corp.21cn.com - robtex.com

corp.21cn.com

DNSSEC⚠️ Not signed
A14.18.107.222🇨🇳 CHINANET-Guangdong-GuangZhou-IDC14.18.104.0/21 CloudVsp.Inc-HYC-double - GZIDC Network unicast
A14.18.118.152🇨🇳 CHINANET-Guangdong-GuangZhou-IDC14.18.116.0/22 CloudVsp.Inc-HYC-double - GZIDC Network unicast
MXtestmx.corp.21cn.com ⭐
A183.56.203.132🇨🇳 CHINANET-Guangdong-GuangZhouNanFangJiDiWang-IDC183.56.192.0/20 CloudVsp.Inc-HYC-double - GZNFJDW Network unicast
A183.56.205.179🇨🇳 CHINANET-Guangdong-GuangZhouNanFangJiDiWang-IDC183.56.192.0/20 CloudVsp.Inc-HYC-double - GZNFJDW Network unicast
MXmta-ent.21cn.com(20)
A183.56.203.132🇨🇳 CHINANET-Guangdong-GuangZhouNanFangJiDiWang-IDC183.56.192.0/20 CloudVsp.Inc-HYC-double - GZNFJDW Network unicast
A183.56.205.179🇨🇳 CHINANET-Guangdong-GuangZhouNanFangJiDiWang-IDC183.56.192.0/20 CloudVsp.Inc-HYC-double - GZNFJDW Network unicast
TXTv=spf1 include:mail-spf.21cn.com include:hwmail-spf.21cn.com include:hkmail-s...

21cn.com

DNSSEC⚠️ Not signed
A240e:980:8100::72d9:250d🇨🇳 CHINANET-BACKBONE240e::/20 CHINANET-IPv6-ROUTE
A114.217.37.13🇨🇳 CHINANET-BACKBONE114.216.0.0/13 China Telecom Network
NSvip3.alidns.com ⭐
NSvip4.alidns.com
MXmta.21cn.com ⭐
TXTv=spf1 include:mail-spf.21cn.com include:mail01-spf.21cn.com include:mail02-s...
SOAvip3.alidns.comhostmaster@hichina.com 2025-12-11 #7
WOT: SAFE (53/100)
rank #10870 globally
rank #5312 in the tld
WOT: SUSPICIOUS (52/100)
📈 Tranco rank: #8,577

Subdomains

testmx.corp.21cn.com
imap.corp.21cn.com

Same first word

corp.microsoft
corp.ma
corp.pl
corp.goog
corp.am
corp.mx
corp.co.il
corp.sap
corp.cr
corp.email
corp.mw
corp.tv
corp.gp
corp.com.mx
corp.hu
corp.com.gt
corp.ru
corp.zone
corp.services
corp.be
corp.io
corp.ae
corp.sk
corp.tel
corp.kr
corp.de
corp.computer
corp.co
corp.at
corp.fox
corp.works
corp.it
corp.org.za
corp.gd
corp.network
corp.googleapis.com
corp.es
corp.black
corp.cloud
corp.pro
corp.ink
corp.me
corp.vn
corp.life
corp.enterprises
corp.cl
corp.media
corp.cat
corp.s3.amazonaws.com
corp.com.tw
corp.no
corp.net
corp.gr
corp.mobi
corp.com.br
corp.jp
corp.org
corp.com
corp.biz
corp.work
corp.ph
corp.canva-apps.cn
corp.domains
corp.eu
corp.is
corp.social
corp.nl
corp.ca
corp.fr
corp.uz
corp.global
corp.com.ec
corp.kz
corp.dk
corp.co.in
corp.business
corp.com.hk
corp.lu
corp.lv
corp.fit
corp.chat
corp.ar
corp.au
corp.ir
corp.one
corp.wiki
corp.co.id
corp.express
corp.design
corp.qc.ca
corp.cool
corp.tc
corp.net.ru
corp.ms
corp.cc
corp.cz
corp.net.br
corp.ad

Similar names

proc.pw
cpor.ie
prco.co.kr
copr.fr
crop.ir
crop.ch
cpro.network
crop.agency
rpco.co.uk
porc.ch
ropc.de
proc.jp
cpor.org
orpc.eu
pcor.us
crop.gallery
ocpr.de
rcop.de
cpro.ru
copr.ru
crop.pl
cpro.kr
crop.works
crop.link
rpco.ru
porc.co.uk
crop.tv
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cpro.fr
crop.biz
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cpro.us
cpro.nl
orpc.de
cpor.ru
cpro.solutions
orpc.net
cpro.biz
crpo.ca
crpo.com
crop.org
prco.net
ropc.net
ocpr.fr
cpro.cc
prco.org
orpc.cn
crop.nl
orpc.org.sg
orpc.co.uk
proc.com.ua
cpro.jp
crop.photos
orcp.org
proc.cc
rocp.ru
cpro.kz
rcop.org
opcr.ca
rpco.org
crop.mobi
rpco.ca
proc.hu
rpco.eu
crop.directory
crop.com.cn
cpro.uk
cpro.se
prco.com
proc.fi
crop.international
ocpr.ru

DNS History

5 records (4 active, 1 former)

20162017201820192020202120222023202420252026MXmta-ent.21cn.comtestmx.corp.21cn.comA14.18.107.22214.18.118.152121.14.129.150
●MXmta-ent.21cn.com2015-08-09 → 2026-05-12 · 2 obs
● 2015-08-09 12:16:04
● 2026-05-12 13:06:36
●MXtestmx.corp.21cn.com2016-01-29 → 2026-05-12 · 3 obs
○ 2015-08-09 12:16:04
● 2016-01-29 01:42:14
● 2026-05-12 13:06:36
○A121.14.129.1502015-08-09 → 2017-03-20 · 4 obs
● 2015-08-09 12:16:04
● 2017-03-20 16:13:42
○ 2026-02-18 21:47:20
○ 2026-05-12 13:06:36
●A14.18.107.2222026-02-18 → 2026-05-12 · 3 obs
○ 2017-03-20 16:13:42
● 2026-02-18 21:47:20
● 2026-05-12 13:06:36
●A14.18.118.1522026-02-18 → 2026-05-12 · 3 obs
○ 2017-03-20 16:13:42
● 2026-02-18 21:47:20
● 2026-05-12 13:06:36

🔍 DNS Trace

Analysis

Hierarchy

corp.21cn.com is a parent of testmx.corp.21cn.com and imap.corp.21cn.com.

IP Addresses

corp.21cn.com resolves to two IP numbers: 14.18.107.222 and 14.18.118.152.

Other host names such as pop.corp.cdn.21cn.com and imap.corp.cdn.21cn.com share IP numbers with corp.21cn.com.

Mail Servers

corp.21cn.com is handled by two mail servers: mta-ent.21cn.com and testmx.corp.21cn.com.

corp.21cn.com shares some mail servers with other domains, at least partially, such as taobaotail.21cn.com, veok.net, tct-tool.com.cn, ppp30.shantou.gd.cn and max2-172.guangzhou.gd.cn.

These mail servers are often used with the mail servers mailcdn.21cn.com.

Host names with two IPs

mta-ent.21cn.com points to: 183.56.203.132 and 183.56.205.179.

testmx.corp.21cn.com points to: 183.56.203.132 and 183.56.205.179.

Host names that point to 183.56.203.132: mta-ent.21cn.com and testmx.corp.21cn.com.

Host names that point to 183.56.205.179: mta-ent.21cn.com and testmx.corp.21cn.com.