Apex domains cannot have CNAME records.
Question and response
Question
dig wimore.it. NS
Answer
wimore.it. 5 NS ns2.wimore.it.
wimore.it. 5 NS ns1.wimore.it.
Authority
The response has no authority records.
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0