Apex domains cannot have CNAME records.
Question and response
Question
dig mysweethome.edu.do. NS
Answer
mysweethome.edu.do. 5 NS ns1.bonactechnology.com.
mysweethome.edu.do. 5 NS ns2.bonactechnology.com.
Authority
The response has no authority records.
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0