Question and response
Question
dig demo.ivcert.net. A
Answer
demo.ivcert.net. 60 A 52.222.236.87
demo.ivcert.net. 60 A 52.222.236.101
demo.ivcert.net. 60 A 52.222.236.77
demo.ivcert.net. 60 A 52.222.236.123
Authority
demo.ivcert.net. 172800 NS ns-101.awsdns-12.com.
demo.ivcert.net. 172800 NS ns-1389.awsdns-45.org.
demo.ivcert.net. 172800 NS ns-1644.awsdns-13.co.uk.
demo.ivcert.net. 172800 NS ns-709.awsdns-24.net.
Additional
. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0