Apex domains cannot have CNAME records.
Question and response
Question
dig silenamotive.com. NS
Answer
silenamotive.com. 5 NS ns1.silenamotive.com.
silenamotive.com. 5 NS ns2.silenamotive.com.
Authority
The response has no authority records.
Additional
ns1.silenamotive.com. 5 A 173.232.230.90
ns2.silenamotive.com. 5 A 69.65.15.15
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0