mailbux.com CNAME records

CNAME Canonical name
Apex domains cannot have CNAME records.

Question and response

Question

dig mailbux.com. NS

Answer

mailbux.com. 5 NS ns2.fullspeed.net. mailbux.com. 5 NS ns1.fullspeed.net.

Authority

The response has no authority records.

Additional

ns1.fullspeed.net. 1 A 46.62.184.155 ns2.fullspeed.net. 1 A 46.62.184.155 . 0 OPT ; payload 1232, xrcode 0, version 0, flags 0