Apex domains cannot have CNAME records.
Question and response
Question
dig azubato.net. NS
Answer
azubato.net. 1 NS ns19.ovh.net.
azubato.net. 1 NS dns19.ovh.net.
Authority
The response has no authority records.
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0