Apex domains cannot have CNAME records.
Question and response
Question
dig daltonprives.com. NS
Answer
daltonprives.com. 5 NS ns-1701.awsdns-20.co.uk.
daltonprives.com. 5 NS ns-2026.awsdns-61.co.uk.
daltonprives.com. 5 NS ns-649.awsdns-17.net.
daltonprives.com. 5 NS ns-681.awsdns-21.net.
Authority
The response has no authority records.
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0