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