Apex domains cannot have CNAME records.
Question and response
Question
dig a2zcreatorz.com.pk. NS
Answer
a2zcreatorz.com.pk. 4 NS merlin.ns.cloudflare.com.
a2zcreatorz.com.pk. 4 NS uma.ns.cloudflare.com.
Authority
The response has no authority records.
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0