WWW.RTSAK.COM - tech.21cn.com

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tech.21cn.com checked at 2025-10-01T22:44:41.406Z 237ms 46/46/46 100% R:14

`tech.21cn.com`

MX	`mta-ent.21cn.com`
		A	183.56.203.132^{🇨🇳 CHINANET-Guangzhou-Southbase-IDC}
		A	183.56.205.179^{🇨🇳 CHINANET-Guangzhou-Southbase-IDC}

`21cn.com`

	MX	`mta.21cn.com`
	NS	`vip3.alidns.com`
	NS	`vip4.alidns.com`
	A	240e:980:8100::72d9:250d ^{🇨🇳 China Telecom}
	A	114.217.37.13^{🇨🇳 China Telecom}

rank #7722 globally
rank #3959 in the tld

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AI analysis

tech.21cn.com has children including 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 mail server for tech.21cn.com is mta-ent.21cn.com.

tech.21cn.com uses the same mail server setup as other domains, for instance 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 some mail servers with other domains, for example ccdmmy.com, daolen.com, shicohmotor.cn, wjcbchina.com and vanincon.com.

These mail servers are commonly used alongside mailcdn.21cn.com, mxn.mxhichina.com and mxw.mxhichina.com.

Hostname mta-ent.21cn.com resolves to two IPs: 183.56.203.132 and 183.56.205.179.

dbq