cas.cn
The domain cas.cn answers at IP address 159.226.242.61. Mail for cas.cn goes through 1 servers; the highest priority one is mx.cstnet.cn. It also publishes 1 TXT records, used to verify domain ownership with external services and to configure mail security through SPF, DKIM and DMARC.
A A records
- 159.226.242.61 3600s
AAAA AAAA records
MX MX records
- 5 mx.cstnet.cn 2524s
NS NS records
- ns3.cstnet.cn 1946s
- ns4.cstnet.cn 1946s
TXT TXT records
- v=spf1 include:spf.mail.cstnet.cn -all 300s
SOA SOA records
- ns1.cdns.cn 3600s
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 3 hours ago.