Apex domains cannot have CNAME records.
Question and response
Question
dig maverix.hu. NS
Answer
maverix.hu. 5 NS ns2.euronetrt.hu.
maverix.hu. 5 NS ns2.dravanet.hu.
maverix.hu. 5 NS drava.dravanet.hu.
Authority
The response has no authority records.
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0