Zone apex
Start of authority
Email
Serial
2026031907
Refresh
3h
Retry
1h
Expire
28d
Negative cache TTL
1h
Question and response
Question
dig _sips._tcp.uni-koeln.de. SOA
Answer
The response has no answer records.
Authority
uni-koeln.de. 3600 SOA noc2.rrz.uni-koeln.de. hostmaster.uni-koeln.de. 2026031907 10800 3600 2419200 3600
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0