Zone apex
Start of authority
Email
Serial
2026020546
Refresh
30m
Retry
15m
Expire
14d
Negative cache TTL
15m
Question and response
Question
dig hketcmail.com. SOA
Answer
hketcmail.com. 900 SOA host1.cntech.net. webmaster.hketcmail.com. 2026020546 1800 900 1209600 900
Authority
hketcmail.com. 900 NS ca.hketc.net.
hketcmail.com. 900 NS host1.cntech.net.
hketcmail.com. 900 NS us.hketc.net.
hketcmail.com. 900 NS host2.cntech.net.
Additional
host1.cntech.net. 900 A 157.245.195.0
host2.cntech.net. 900 A 139.162.27.162
us.hketc.net. 900 A 202.155.202.114
ca.hketc.net. 900 A 116.92.229.27
host1.cntech.net. 900 AAAA 2400:6180:0:d0:0:0:132b:3001
host2.cntech.net. 900 AAAA 2400:8901:0:0:f03c:93ff:fe89:a03a
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0