Zone apex
Start of authority
Email
Serial
2026012001
Refresh
3h
Retry
1h
Expire
14d
Negative cache TTL
5m
Question and response
Question
dig _spf.ktk-sol.co.jp. SOA
Answer
The response has no answer records.
Authority
ktk-sol.co.jp. 300 SOA ns01.ktk-sol.co.jp. postmaster.ns01.ktk-sol.co.jp. 2026012001 10800 3600 1209600 300
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0