sfnet.com.br CNAME records

CNAME Canonical name
Apex domains cannot have CNAME records.

Question and response

Question

dig sfnet.com.br. NS

Answer

sfnet.com.br. 4 NS ns1.frionline.com.br. sfnet.com.br. 4 NS ns2.frionline.com.br. sfnet.com.br. 4 NS master.frionline.com.br.

Authority

The response has no authority records.

Additional

ns1.frionline.com.br. 4 A 177.54.112.248 ns2.frionline.com.br. 4 A 177.54.112.249 . 0 OPT ; payload 1232, xrcode 0, version 0, flags 0