Apex domains cannot have CNAME records.
Question and response
Question
dig dedicatedcctv.com. NS
Answer
dedicatedcctv.com. 1 NS ns-274.awsdns-34.com.
dedicatedcctv.com. 1 NS ns-1688.awsdns-19.co.uk.
dedicatedcctv.com. 1 NS ns-1086.awsdns-07.org.
dedicatedcctv.com. 1 NS ns-1815.awsdns-34.co.uk.
Authority
The response has no authority records.
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0