Apex domains cannot have CNAME records.
Question and response
Question
dig datapacket.net. NS
Answer
datapacket.net. 3 NS zoom.interlayer.net.
datapacket.net. 3 NS vroom.interlayer.net.
Authority
The response has no authority records.
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0