Zone apex
Start of authority
Email
Serial
2021090201
Refresh
2h
Retry
1h
Expire
7d
Negative cache TTL
15m
Question and response
Question
dig user.starcat.ne.jp. SOA
Answer
user.starcat.ne.jp. 900 SOA dns1.cnci.jp. nic.cnci.co.jp. 2021090201 7200 3600 604800 900
Authority
user.starcat.ne.jp. 900 NS dns1.cnci.jp.
user.starcat.ne.jp. 900 NS dns2.cnci.jp.
user.starcat.ne.jp. 900 NS dns3.cnci.jp.
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0