Apex domains cannot have CNAME records.
Question and response
Question
dig montanaconfluence.com. NS
Answer
montanaconfluence.com. 4 NS ns2.montanaconfluence.com.
montanaconfluence.com. 4 NS ns1.montanaconfluence.com.
Authority
The response has no authority records.
Additional
ns1.montanaconfluence.com. 4 A 5.45.75.46
ns2.montanaconfluence.com. 4 A 37.252.3.94
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0