Zone apex
Start of authority
Email
Serial
2019055355
Refresh
1h
Retry
15m
Expire
7d
Negative cache TTL
1h
Question and response
Question
dig mx-b.ktk.de. SOA
Answer
The response has no answer records.
Authority
ktk.de. 3600 SOA ns-a.ktk.de. hostmaster.noc.ktk.de. 2019055355 3600 900 604800 3600
Additional
. 0 OPT ; payload 1680, xrcode 0, version 0, flags 0