Zone apex
Start of authority
Email
Serial
1
Refresh
2h
Retry
15m
Expire
14d
Negative cache TTL
1d
Question and response
Question
dig 48-63.218.36.138.in-addr.arpa. SOA
Answer
48-63.218.36.138.in-addr.arpa. 900 SOA ns-1587.awsdns-06.co.uk. awsdns-hostmaster.amazon.com. 1 7200 900 1209600 86400
Authority
48-63.218.36.138.in-addr.arpa. 172800 NS ns-1128.awsdns-13.org.
48-63.218.36.138.in-addr.arpa. 172800 NS ns-1587.awsdns-06.co.uk.
48-63.218.36.138.in-addr.arpa. 172800 NS ns-60.awsdns-07.com.
48-63.218.36.138.in-addr.arpa. 172800 NS ns-954.awsdns-55.net.
Additional
. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0