Zone apex
Start of authority
Email
Serial
2026031914
Refresh
8h
Retry
2h
Expire
21d
Negative cache TTL
1h
Question and response
Question
dig _sips._tcp.ten.cz. SOA
Answer
The response has no answer records.
Authority
ten.cz. 3600 SOA dns.cesnet.cz. hostmaster.cesnet.cz. 2026031914 28800 7200 1814400 3600
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0