Apex domains cannot have CNAME records.
Question and response
Question
dig kuksoolwon-banchory.com. NS
Answer
kuksoolwon-banchory.com. 5 NS ns-328.awsdns-41.com.
kuksoolwon-banchory.com. 5 NS ns-962.awsdns-56.net.
kuksoolwon-banchory.com. 5 NS ns-1171.awsdns-18.org.
kuksoolwon-banchory.com. 5 NS ns-1290.awsdns-33.org.
Authority
The response has no authority records.
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0