Apex domains cannot have CNAME records.
Question and response
Question
dig edevau.net. NS
Answer
edevau.net. 5 NS ns2.ithnet.com.
edevau.net. 5 NS ns.ithnet.com.
edevau.net. 5 NS ns20.edevau.net.
edevau.net. 5 NS ns21.edevau.net.
edevau.net. 5 NS ns22.edevau.net.
Authority
The response has no authority records.
Additional
ns.ithnet.com. 5 A 217.64.64.10
ns2.ithnet.com. 5 A 217.64.64.11
ns20.edevau.net. 5 A 217.64.80.5
ns22.edevau.net. 5 A 217.64.64.162
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0