Zone apex
Start of authority
Email
Serial
2019055355
Refresh
1h
Retry
15m
Expire
7d
Negative cache TTL
1h
Question and response
Question
dig mx1.isp.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