Apex domains cannot have CNAME records.
Question and response
Question
dig kzgunea.net. NS
Answer
kzgunea.net. 5 NS ns-755.awsdns-30.net.
kzgunea.net. 5 NS ns-1048.awsdns-03.org.
kzgunea.net. 5 NS ns-1784.awsdns-31.co.uk.
kzgunea.net. 5 NS ns-60.awsdns-07.com.
Authority
The response has no authority records.
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0