rjo.embratel.net.br CNAME records

CNAME Canonical name
Apex domains cannot have CNAME records.

Question and response

Question

dig rjo.embratel.net.br. NS

Answer

rjo.embratel.net.br. 5 NS ns2.embratel.net.br. rjo.embratel.net.br. 5 NS ns.embratel.net.br.

Authority

The response has no authority records.

Additional

ns.embratel.net.br. 5 A 200.255.253.241 ns2.embratel.net.br. 5 A 200.245.255.33 . 0 OPT ; payload 1232, xrcode 0, version 0, flags 0