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