Question and response
Question
dig _ffc63b74eae13b0d942d1071954d57a7.demo.ivcert.net. NS
Answer
_ffc63b74eae13b0d942d1071954d57a7.demo.ivcert.net. 5 CNAME _5994a004999ffe99f66b12760a146935.sdgjtdhdhz.acm-validations.aws.
Authority
sdgjtdhdhz.acm-validations.aws. 900 SOA ns-1871.awsdns-41.co.uk. awsdns-hostmaster.amazon.com. 1 7200 900 1209600 86400
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0