189.cn
The domain 189.cn answers at IP address 117.89.29.19. That address belongs to Chinanet JS, based in China. Mail for 189.cn goes through 3 servers; the highest priority one is mta-189.21cn.com. It also publishes 5 TXT records, used to verify domain ownership with external services and to configure mail security through SPF, DKIM and DMARC.
A A records
- 117.89.29.19 211s
MX MX records
- 10 mta-189.21cn.com 605s
- 20 mx2-189.21cn.com 605s
- 30 mx3-189.21cn.com 605s
NS NS records
- ns1.chinanet.cn 20502s
- ns2.chinanet.cn 20502s
TXT TXT records
- v=spf1 include:mail-spf.21cn.com include:hwmail-spf.21cn.com -all 321s
- globalsign-domain-verification=aF1WppYM23EmniP08To6CoRhshTaAUbFJIFOs1q7VY 321s
- b3d973d953124f18b572c0b2775d1eee 21321s
- d6baa51391750005fce703030c1306562566d86135d518bd4bf0b10b3d99261f 21321s
- google-site-verification=fnhC9eZ-Dmna-6EIvU0mJXk52k0A5TChiQaulg-xdss 21321s
SOA SOA records
- master.189.cn 21600s
What each record means
- A and AAAA: the server IP address, in IPv4 and IPv6.
- MX: the servers that receive the domain mail. The number is the priority; the lowest is tried first.
- NS: the name servers, which have the final say over the domain DNS.
- TXT: free text. Mostly used for SPF, DKIM and DMARC, and to verify ownership with third parties.
- TTL: how many seconds the record may be cached before asking again.
Checked 19 hours ago.