Apex domains cannot have CNAME records.
Question and response
Question
dig hostingcom.cl. NS
Answer
hostingcom.cl. 4 NS cl4.hnc.cl.
hostingcom.cl. 4 NS cl.hnc.cl.
hostingcom.cl. 4 NS cl2.hnc.cl.
Authority
The response has no authority records.
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0