AuthDNS.connesi.it has no CNAME records.
Question and response
Question
dig AuthDNS.connesi.it. NS
Answer
The response has no answer records.
Authority
connesi.it. 9224 SOA authdns.connesi.it. salamacchine.connesi.it. 2022111464 7200 3600 1814400 38400
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0