Apex domains cannot have CNAME records.
Question and response
Question
dig harmony.hosting. NS
Answer
harmony.hosting. 4 NS dawn.ns.cloudflare.com.
harmony.hosting. 4 NS brett.ns.cloudflare.com.
Authority
The response has no authority records.
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0