Zone apex
Start of authority
Email
Serial
1
Refresh
1h
Retry
15m
Expire
7d
Negative cache TTL
15m
Question and response
Question
dig ap-northeast-1.amazonaws.com. SOA
Answer
ap-northeast-1.amazonaws.com. 7200 SOA dns-external-route53.us-east-1.amazonaws.com. root.amazon.com. 1 3600 900 604800 900
Authority
ap-northeast-1.amazonaws.com. 46291 NS ns-1007.awsdns-61.net.
ap-northeast-1.amazonaws.com. 46291 NS ns-1419.awsdns-49.org.
ap-northeast-1.amazonaws.com. 46291 NS ns-1941.awsdns-50.co.uk.
ap-northeast-1.amazonaws.com. 46291 NS ns-68.awsdns-08.com.
Additional
. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0