Apex domains cannot have CNAME records.
Question and response
Question
dig alwyzon.net. NS
Answer
alwyzon.net. 1 NS ns3.alwyzon.com.
alwyzon.net. 1 NS ns1.alwyzon.net.
alwyzon.net. 1 NS ns2.alwyzon.at.
Authority
The response has no authority records.
Additional
ns1.alwyzon.net. 1 A 46.102.157.22
ns2.alwyzon.at. 2 A 31.14.17.4
ns3.alwyzon.com. 2 A 46.102.157.71
ns1.alwyzon.net. 1 AAAA 2a0d:f302:99:0:ecaa:d6ff:fe6e:7749
ns2.alwyzon.at. 2 AAAA 2a0d:f302:133:0:0:0:0:2
ns3.alwyzon.com. 2 AAAA 2a0d:f302:101:1a2a:0:0:0:1
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0