Question and response
Question
dig mailcn.hikvision.com. AAAA
Answer
The response has no answer records.
Authority
hikvision.com. 180 SOA ns3.dnsv5.com. enterprise3dnsadmin.dnspod.com. 1772546682 3600 180 1209600 180
Additional
. 0 OPT ; payload 1280, xrcode 0, version 0, flags 0