tech.21cn.com
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tech.21cn.com checked at 2026-01-08T16:34:46.304Z 1701ms 46/46/46 100% R:16 allDone:true timedOut:false cfaller:f1189d9e/1:44a6e74a:18131:-tech.21cn.com
| MX | mta-ent.21cn.com | ||||||
| A | 183.56.203.132🇨🇳 CHINANET-Guangdong-GuangZhouNanFangJiDiWang-IDC | ||||||
| A | 183.56.205.179🇨🇳 CHINANET-Guangdong-GuangZhouNanFangJiDiWang-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 | ||||||
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AI analysis
tech.21cn.com is parent of oss.tech.21cn.com, dapm.tech.21cn.com, msg.tech.21cn.com, exam.tech.21cn.com and v.tech.21cn.com.
tech.21cn.com is handled by a single mail server, mta-ent.21cn.com.
tech.21cn.com has 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 some mail servers with other domains, at least partially, such as ccdmmy.com, daolen.com, shicohmotor.cn, wjcbchina.com and vanincon.com.
these mail servers are often used alongside mailcdn.21cn.com, mxn.mxhichina.com and mxw.mxhichina.com.
Host mta-ent.21cn.com resolves to two IPs: 183.56.203.132 and 183.56.205.179.