Zone apex
Start of authority
Email
Serial
2026031903
Refresh
4h
Retry
15m
Expire
7d
Negative cache TTL
1d
Question and response
Question
dig 10-19.124.242.130.in-addr.arpa. SOA
Answer
10-19.124.242.130.in-addr.arpa. 1800 SOA a.ns.kth.se. hostmaster.kth.se. 2026031903 14400 900 604800 86400
Authority
10-19.124.242.130.in-addr.arpa. 1800 NS a.ns.kth.se.
10-19.124.242.130.in-addr.arpa. 1800 NS b.ns.kth.se.
Additional
a.ns.kth.se. 1800 A 130.237.72.246
b.ns.kth.se. 1800 A 130.237.72.250
a.ns.kth.se. 1800 AAAA 2001:6b0:1:0:0:0:0:246
b.ns.kth.se. 1800 AAAA 2001:6b0:1:0:0:0:0:250
. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0