Zone apex
Start of authority
Email
Serial
1
Refresh
2h
Retry
15m
Expire
14d
Negative cache TTL
1d
Question and response
Question
dig 224-27.17.154.195.in-addr.arpa. SOA
Answer
224-27.17.154.195.in-addr.arpa. 900 SOA ns-851.awsdns-42.net. awsdns-hostmaster.amazon.com. 1 7200 900 1209600 86400
Authority
224-27.17.154.195.in-addr.arpa. 172800 NS ns-1249.awsdns-28.org.
224-27.17.154.195.in-addr.arpa. 172800 NS ns-1573.awsdns-04.co.uk.
224-27.17.154.195.in-addr.arpa. 172800 NS ns-28.awsdns-03.com.
224-27.17.154.195.in-addr.arpa. 172800 NS ns-851.awsdns-42.net.
Additional
. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0