Apex domains cannot have CNAME records.
Question and response
Question
dig fluda.net. NS
Answer
fluda.net. 5 NS ns1.veenee.win.
fluda.net. 5 NS ns2.veenee.win.
Authority
The response has no authority records.
Additional
ns1.veenee.win. 5 A 45.12.5.116
ns2.veenee.win. 5 A 149.5.9.100
ns1.veenee.win. 5 AAAA 2a05:5940:d1:0:0:0:0:1
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0