Apex domains cannot have CNAME records.
Question and response
Question
dig minacs.com. NS
Answer
minacs.com. 5 NS fh-dns1.minacs.com.
minacs.com. 5 NS osh-dns2.minacs.com.
Authority
The response has no authority records.
Additional
fh-dns1.minacs.com. 5 A 74.205.162.12
osh-dns2.minacs.com. 5 A 74.205.174.40
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0