Zone apex
Start of authority
Email
Serial
2026012801
Refresh
1h
Retry
1h
Expire
7d
Negative cache TTL
1h
Question and response
Question
dig mx1.ctihk.com. SOA
Answer
The response has no answer records.
Authority
ctihk.com. 3600 SOA ns1o.ctihk.com. sysadm.ns1o.ctihk.com. 2026012801 3600 3600 604800 3600
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0