Apex domains cannot have CNAME records.
Question and response
Question
dig hzabp.com. NS
Answer
hzabp.com. 5 NS ns2.hzabp.com.
hzabp.com. 5 NS ns1.hzabp.com.
Authority
The response has no authority records.
Additional
ns1.hzabp.com. 5 A 173.44.187.105
ns2.hzabp.com. 5 A 91.223.3.176
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0