fortress.org CNAME records

CNAME Canonical name
Apex domains cannot have CNAME records.

Question and response

Question

dig fortress.org. NS

Answer

fortress.org. 4 NS ns2.pubnix.net. fortress.org. 4 NS ns.pubnix.net.

Authority

The response has no authority records.

Additional

ns2.pubnix.net. 4 A 192.172.250.8 ns2.pubnix.net. 4 AAAA 2607:2a00:2:0:0:0:c0ac:fa08 . 0 OPT ; payload 1232, xrcode 0, version 0, flags 0