Apex domains cannot have CNAME records.
Question and response
Question
dig ticonnexions.com.mx. NS
Answer
ticonnexions.com.mx. 5 NS ns245.neubox.net.
ticonnexions.com.mx. 5 NS ns144.neubox.net.
ticonnexions.com.mx. 5 NS ns143.neubox.net.
Authority
The response has no authority records.
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0