Apex domains cannot have CNAME records.
Question and response
Question
dig bitcommand.com. NS
Answer
bitcommand.com. 1 NS eva.ns.cloudflare.com.
bitcommand.com. 1 NS tim.ns.cloudflare.com.
Authority
The response has no authority records.
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0