Apex domains cannot have CNAME records.
Question and response
Question
dig jamiedigi.com. NS
Answer
jamiedigi.com. 4 NS ns-821.awsdns-38.net.
jamiedigi.com. 4 NS ns-1707.awsdns-21.co.uk.
jamiedigi.com. 4 NS ns-64.awsdns-08.com.
jamiedigi.com. 4 NS ns-1606.awsdns-08.co.uk.
Authority
The response has no authority records.
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0