Apex domains cannot have CNAME records.
Question and response
Question
dig bracnet.net. NS
Answer
bracnet.net. 5 NS dns2.bdmail.net.
bracnet.net. 5 NS dns1.bdmail.net.
Authority
The response has no authority records.
Additional
dns1.bdmail.net. 5 A 202.168.254.4
dns2.bdmail.net. 5 A 202.168.254.8
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0