Apex domains cannot have CNAME records.
Question and response
Question
dig obe.net. NS
Answer
obe.net. 3 NS ns2.obe.net.
obe.net. 3 NS ns1.obe.net.
Authority
The response has no authority records.
Additional
ns1.obe.net. 3 A 46.227.64.3
ns2.obe.net. 3 A 178.132.73.3
ns1.obe.net. 3 AAAA 2a0c:dd40:0:0:0:0:0:3
ns2.obe.net. 3 AAAA 2a07:5cc0:0:a:0:0:0:3
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0