Question and response
Question
dig dns.hketcmail.com. PTR
Answer
The response has no answer records.
Authority
hketcmail.com. 900 SOA host1.cntech.net. webmaster.hketcmail.com. 2026020546 1800 900 1209600 900
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0