Apex domains cannot have CNAME records.
Question and response
Question
dig wingsoft.it. NS
Answer
wingsoft.it. 2 NS ns11.ovh.net.
wingsoft.it. 2 NS dns11.ovh.net.
Authority
The response has no authority records.
Additional
ns11.ovh.net. 2 A 5.39.27.169
dns11.ovh.net. 2 A 5.135.86.61
ns11.ovh.net. 2 AAAA 2001:41d0:b00:d000:0:0:0:2
dns11.ovh.net. 2 AAAA 2001:41d0:d00:f000:0:0:0:2
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0