CF1761234831078-tsm20251017082432

MXLIST.NET - tech.21cn.com

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tech.21cn.com checked at 2025-10-23T15:53:51.057Z 305ms 46/46/46 100% R:12

tech.21cn.com

MXmta-ent.21cn.com
A183.56.203.132🇨🇳 CHINANET-Guangzhou-Southbase-IDC
A183.56.205.179🇨🇳 CHINANET-Guangzhou-Southbase-IDC

21cn.com

MXmta.21cn.com
NSvip3.alidns.com
NSvip4.alidns.com
A240e:980:8100::72d9:250d 🇨🇳 China Telecom
A114.217.37.13🇨🇳 China Telecom
rank #7722 globally
rank #3959 in the tld

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AI analysis

tech.21cn.com is a parent of sec.tech.21cn.com, oss.tech.21cn.com, dapm.tech.21cn.com, msg.tech.21cn.com, exam.tech.21cn.com and a few other host names.

The mta-ent.21cn.com mail server handles tech.21cn.com.

tech.21cn.com shares the same mail server setup as other domains, including ppp72.shantou.gd.cn, gzb-dns2-1.guangzhou.gd.cn, et.21cn.com, mailcnd.21cn.com and maiilcdn.21cn.com.

tech.21cn.com shares at least partially some mail servers with other domains, for instance ccdmmy.com, daolen.com, shicohmotor.cn, wjcbchina.com and vanincon.com.

these mail servers are often used together with mailcdn.21cn.com, mxn.mxhichina.com and mxw.mxhichina.com.

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

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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YVdqRGC CF johedugfp 2025-10-23