Apex domains cannot have CNAME records.
Question and response
Question
dig azylis.info. NS
Answer
azylis.info. 5 NS ns.azylis.net.
azylis.info. 5 NS ns2.azylis.net.
Authority
The response has no authority records.
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0