Apex domains cannot have CNAME records.
Question and response
Question
dig devopsprosgo.com. NS
Answer
devopsprosgo.com. 2 NS ns-1998.awsdns-57.co.uk.
devopsprosgo.com. 2 NS ns-866.awsdns-44.net.
devopsprosgo.com. 2 NS ns-968.awsdns-57.net.
devopsprosgo.com. 2 NS ns-1325.awsdns-37.org.
Authority
The response has no authority records.
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0