Apex domains cannot have CNAME records.
Question and response
Question
dig fiberish.net.PK. NS
Answer
fiberish.net.PK. 5 NS jewel.ns.cloudflare.com.
fiberish.net.PK. 5 NS vin.ns.cloudflare.com.
Authority
The response has no authority records.
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0