Zone apex
Start of authority
Email
Serial
1
Refresh
2h
Retry
15m
Expire
14d
Negative cache TTL
1d
Question and response
Question
dig 144-159.218.36.138.in-addr.arpa. SOA
Answer
144-159.218.36.138.in-addr.arpa. 900 SOA ns-1538.awsdns-00.co.uk. awsdns-hostmaster.amazon.com. 1 7200 900 1209600 86400
Authority
144-159.218.36.138.in-addr.arpa. 172800 NS ns-1419.awsdns-49.org.
144-159.218.36.138.in-addr.arpa. 172800 NS ns-1538.awsdns-00.co.uk.
144-159.218.36.138.in-addr.arpa. 172800 NS ns-485.awsdns-60.com.
144-159.218.36.138.in-addr.arpa. 172800 NS ns-697.awsdns-23.net.
Additional
. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0