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