Apex domains cannot have CNAME records.
Question and response
Question
dig melbicom.net. NS
Answer
melbicom.net. 5 NS dns1.swiftycdn.net.
melbicom.net. 5 NS dns2.swiftycdn.net.
Authority
The response has no authority records.
Additional
dns1.swiftycdn.net. 5 A 91.192.82.100
dns2.swiftycdn.net. 5 A 5.188.175.200
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0