Apex domains cannot have CNAME records.
Question and response
Question
dig fotodiemme.com. NS
Answer
fotodiemme.com. 1 NS ns-1722.awsdns-23.co.uk.
fotodiemme.com. 1 NS ns-1918.awsdns-47.co.uk.
fotodiemme.com. 1 NS ns-940.awsdns-53.net.
fotodiemme.com. 1 NS ns-997.awsdns-60.net.
Authority
The response has no authority records.
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0