Apex domains cannot have CNAME records.
Question and response
Question
dig profiwh.com. NS
Answer
profiwh.com. 5 NS ns.profiwh.net.
profiwh.com. 5 NS ns.profiwh.cz.
profiwh.com. 5 NS ns.profiwh.com.
Authority
The response has no authority records.
Additional
ns.profiwh.cz. 5 A 31.31.75.42
ns.profiwh.com. 5 A 94.113.246.20
ns.profiwh.net. 5 A 85.93.166.254
ns.profiwh.cz. 5 AAAA 2a02:2b88:2:1:0:0:39c2:1
ns.profiwh.com. 5 AAAA 2a02:8304:1:6:0:0:246:20
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0