Apex domains cannot have CNAME records.
Question and response
Question
dig elisabettaborseti.com. NS
Answer
elisabettaborseti.com. 5 NS ns-56.awsdns-07.com.
elisabettaborseti.com. 5 NS ns-929.awsdns-52.net.
elisabettaborseti.com. 5 NS ns-1349.awsdns-40.org.
elisabettaborseti.com. 5 NS ns-20.awsdns-02.com.
Authority
The response has no authority records.
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0