Apex domains cannot have CNAME records.
Question and response
Question
dig pgqzy.com. NS
Answer
pgqzy.com. 5 NS ns2.pgqzy.com.
pgqzy.com. 5 NS ns1.pgqzy.com.
Authority
The response has no authority records.
Additional
ns1.pgqzy.com. 5 A 66.181.38.170
ns2.pgqzy.com. 5 A 216.245.213.212
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0