Apex domains cannot have CNAME records.
Question and response
Question
dig bestboatingdeals.com. NS
Answer
bestboatingdeals.com. 4 NS ns2.bestboatingdeals.com.
bestboatingdeals.com. 4 NS ns1.bestboatingdeals.com.
Authority
The response has no authority records.
Additional
ns1.bestboatingdeals.com. 4 A 103.234.38.92
ns2.bestboatingdeals.com. 4 A 54.38.75.193
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0