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

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tech.21cn.com checked at 2025-10-07T12:13:25.699Z 313ms 58/58/58 100% 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 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.

tech.21cn.com is handled by a single mail server, mta-ent.21cn.com.

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

The mail servers for tech.21cn.com are shared 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 IPs: 183.56.203.132 and 183.56.205.179.

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