CF1759660786366-tsm20251005092912

WWW.ROBTEX.COM - 21cs.cn

Search for IP or hostnames:

21cs.cn checked at 2025-10-05T10:39:46.297Z 1922ms 238/238/238 100% R:13

21cs.cn

MXmxbiz1.qq.com
A103.86.78.2🇭🇰 HGC
A103.86.78.3🇭🇰 HGC
MXmxbiz2.qq.com
A43.154.252.16🇭🇰 Tencent Global
A43.154.252.202🇭🇰 Tencent Global
NSf1g1ns1.dnspod.net
A2402:4e00:1470:2::e🇨🇳 Tencent-CN
A1.12.0.4🇨🇳 Tencent Global
A1.14.119.35🇨🇳 Tencent-CN
A111.13.13.35🇨🇳 China Mobile Communications Group Co., Ltd.
A112.80.181.45🇨🇳 China Unicom
A117.135.128.235🇨🇳 China Mobile Communications Group Co., Ltd.
PTR.
A125.94.59.235🇨🇳 China Telecom
A163.177.5.35🇨🇳 UNICOM-GuangZhou-IDC
NSf1g1ns2.dnspod.net
A2402:4e00:111:fff::c🇨🇳 Tencent-CN
A1.12.0.1🇨🇳 Tencent Global
A36.155.149.176🇨🇳 CMNET-Jiangsu-AP
A101.227.168.35🇨🇳 CHINANET-SH-AP
A106.39.207.235🇨🇳 CHINANET-IDC-BJ-AP
A111.206.98.235🇨🇳 China Unicom Beijing Province Network
A129.211.176.239🇨🇳 Tencent-CN
A220.196.136.35🇨🇳 UNICOM-SHFT-IDC
A218.4.112.243🇨🇳 China Telecom

cn

NSa.dns.cn
NSb.dns.cn
NSc.dns.cn
NSd.dns.cn
NSe.dns.cn
NSns.cernet.net

Starts with same word

Starts similarily

AI analysis

21cs.cn resolves to one IP number: 218.4.112.243.

21cs.cn is delegated to two name servers f1g1ns1.dnspod.net and f1g1ns2.dnspod.net.

21cs.cn shares the same name server setup as other domains, for instance 35829.com, zhuhanyu.com, zhandai.com, tzuqiu.cc and meb.pw.

21cs.cn at least partially shares name servers with other domains, for instance traingo.cn.

Host names with eight IP numbers:

f1g1ns1.dnspod.net points to: 2402:4e00:1470:2::e, 1.12.0.4, 1.14.119.35, 111.13.13.35, 112.80.181.45, 117.135.128.235, 125.94.59.235 and 163.177.5.35

f1g1ns2.dnspod.net points to: 2402:4e00:111:fff::c, 1.12.0.1, 36.155.149.176, 101.227.168.35, 106.39.207.235, 111.206.98.235, 129.211.176.239 and 220.196.136.35

Two mail servers handle 21cs.cn: mxbiz1.qq.com and mxbiz2.qq.com.

21cs.cn shares the same mail server setup as other domains, for instance riign.com, xunruikeji.com, gb9000.com, t-metals.com and uyoo.net.

21cs.cn shares some mail servers with other domains, at least partially, for instance dingxinsec.com.cn, citsec.com, jinjiangshijia.com, ttstream.com and wipon.cn.

Host names with two IP numbers:

The host name mxbiz1.qq.com points to 103.86.78.2 and 103.86.78.3; the host name mxbiz2.qq.com points to 43.154.252.16 and 43.154.252.202.

Perform reverse DNS lookup as well as normal forward DNS. Check Autonomous System Numbers (ASNs) and BGP connections between Internet Service Providers.
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xgUhCtz CF johedugfp 2025-10-05