oioffice.com.br CNAME records

CNAME Canonical name
Apex domains cannot have CNAME records.

Question and response

Question

dig oioffice.com.br. NS

Answer

oioffice.com.br. 1 NS ns01.telemar.com.br. oioffice.com.br. 1 NS venus.telemar.com.br.

Authority

The response has no authority records.

Additional

ns01.telemar.com.br. 1 A 200.202.193.140 venus.telemar.com.br. 1 A 187.6.211.148 . 0 OPT ; payload 1232, xrcode 0, version 0, flags 0