Zone apex
Start of authority
Email
Serial
1
Refresh
7d
Retry
1m
Expire
7d
Negative cache TTL
7d
Question and response
Question
dig service.arpa. SOA
Answer
service.arpa. 604800 SOA prisoner.iana.org. hostmaster.root-servers.org. 1 604800 60 604800 604800
Authority
The response has no authority records.
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0