com4.com.br CNAME records

CNAME Canonical name
Apex domains cannot have CNAME records.

Question and response

Question

dig com4.com.br. NS

Answer

com4.com.br. 5 NS dns2.com4.com.br. com4.com.br. 5 NS dns1.com4.com.br.

Authority

The response has no authority records.

Additional

dns1.com4.com.br. 5 A 189.90.130.11 dns2.com4.com.br. 5 A 189.90.131.2 . 0 OPT ; payload 1232, xrcode 0, version 0, flags 0