Apex domains cannot have CNAME records.
Question and response
Question
dig enginetornado.com. NS
Answer
enginetornado.com. 5 NS ns1.enginetornado.com.
enginetornado.com. 5 NS ns2.enginetornado.com.
Authority
The response has no authority records.
Additional
ns1.enginetornado.com. 5 A 146.59.232.6
ns2.enginetornado.com. 5 A 51.91.165.225
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0