Apex domains cannot have CNAME records.
Question and response
Question
dig ed1privatedns.com. NS
Answer
ed1privatedns.com. 1 NS ns2.panelbox.net.
ed1privatedns.com. 1 NS ns3.panelbox.net.
ed1privatedns.com. 1 NS ns4.panelbox.net.
ed1privatedns.com. 1 NS ns1.panelbox.net.
Authority
The response has no authority records.
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0