DNSWHOIS.INFO - tech.21cn.com

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tech.21cn.com checked at 2025-10-07T21:13:30.925Z 230ms 46/46/46 100% R:17

`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

Up

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msg.tech.21cn.com

exam.tech.21cn.com

v.tech.21cn.com

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AI analysis

tech.21cn.com is the 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.

tech.21cn.com is handled by a single mail server, 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 partially some mail servers with other domains, for instance ccdmmy.com, daolen.com, shicohmotor.cn, wjcbchina.com and vanincon.com.

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

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

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