Apex domains cannot have CNAME records.
Question and response
Question
dig threefirestourism.com. NS
Answer
threefirestourism.com. 5 NS ns2.threefirestourism.com.
threefirestourism.com. 5 NS ns1.threefirestourism.com.
Authority
The response has no authority records.
Additional
ns1.threefirestourism.com. 5 A 51.77.72.84
ns2.threefirestourism.com. 5 A 119.252.190.172
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0