security-mail.net CNAME records

CNAME Canonical name
Apex domains cannot have CNAME records.

Question and response

Question

dig security-mail.net. NS

Answer

security-mail.net. 5 NS ns-157-b.gandi.net. security-mail.net. 5 NS ns-18-a.gandi.net. security-mail.net. 5 NS ns-240-c.gandi.net.

Authority

The response has no authority records.

Additional

. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0