Apex domains cannot have CNAME records.
Question and response
Question
dig unbelievable-machine.net. NS
Answer
unbelievable-machine.net. 2 NS ns06.unbelievable-machine.net.
unbelievable-machine.net. 2 NS ns07.unbelievable-machine.net.
unbelievable-machine.net. 2 NS ns05.unbelievable-machine.net.
Authority
The response has no authority records.
Additional
ns05.unbelievable-machine.net. 2 A 94.198.60.100
ns06.unbelievable-machine.net. 2 A 80.82.200.180
ns07.unbelievable-machine.net. 2 A 79.174.140.34
ns05.unbelievable-machine.net. 2 AAAA 2a00:cd0:1:1880:0:0:0:100
ns06.unbelievable-machine.net. 2 AAAA 2a00:cd0:1:1881:0:0:0:180
ns07.unbelievable-machine.net. 2 AAAA 2a03:7c40:1:1884:79:174:140:34
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0