Apex domains cannot have CNAME records.
Question and response
Question
dig ilucion.com. NS
Answer
ilucion.com. 5 NS ns-1285.awsdns-32.org.
ilucion.com. 5 NS ns-1475.awsdns-56.org.
ilucion.com. 5 NS ns-204.awsdns-25.com.
ilucion.com. 5 NS ns-1289.awsdns-33.org.
Authority
The response has no authority records.
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0