Apex domains cannot have CNAME records.
Question and response
Question
dig credit360.com. NS
Answer
credit360.com. 5 NS ns-1966.awsdns-53.co.uk.
credit360.com. 5 NS ns-1188.awsdns-20.org.
credit360.com. 5 NS ns-345.awsdns-43.com.
credit360.com. 5 NS ns-1018.awsdns-63.net.
Authority
The response has no authority records.
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0