Apex domains cannot have CNAME records.
Question and response
Question
dig zorevinta.com. NS
Answer
zorevinta.com. 5 NS ns-1347.awsdns-40.org.
zorevinta.com. 5 NS ns-368.awsdns-46.com.
zorevinta.com. 5 NS ns-89.awsdns-11.com.
zorevinta.com. 5 NS ns-1701.awsdns-20.co.uk.
Authority
The response has no authority records.
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0