Apex domains cannot have CNAME records.
Question and response
Question
dig ezyreg.com. NS
Answer
ezyreg.com. 5 NS ns-1174.awsdns-18.org.
ezyreg.com. 5 NS ns-1873.awsdns-42.co.uk.
ezyreg.com. 5 NS ns-90.awsdns-11.com.
ezyreg.com. 5 NS ns-654.awsdns-17.net.
Authority
The response has no authority records.
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0