Apex domains cannot have CNAME records.
Question and response
Question
dig consultorias360.com. NS
Answer
consultorias360.com. 5 NS ns-1396.awsdns-46.org.
consultorias360.com. 5 NS ns-569.awsdns-07.net.
consultorias360.com. 5 NS ns-42.awsdns-05.com.
consultorias360.com. 5 NS ns-1351.awsdns-40.org.
Authority
The response has no authority records.
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0