Apex domains cannot have CNAME records.
Question and response
Question
dig oit.one. NS
Answer
oit.one. 5 NS meilani.ns.cloudflare.com.
oit.one. 5 NS carmelo.ns.cloudflare.com.
Authority
The response has no authority records.
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0