redes.acens.net CNAME records

CNAME Canonical name
Apex domains cannot have CNAME records.

Question and response

Question

dig redes.acens.net. NS

Answer

redes.acens.net. 4 NS ns1.acens.net. redes.acens.net. 4 NS ns2.acens.net.

Authority

The response has no authority records.

Additional

ns1.acens.net. 4 A 217.116.0.176 ns2.acens.net. 4 A 217.116.0.177 . 0 OPT ; payload 1232, xrcode 0, version 0, flags 0