Apex domains cannot have CNAME records.
Question and response
Question
dig hellokittycreditcard.com. NS
Answer
hellokittycreditcard.com. 5 NS ns-1223.awsdns-24.org.
hellokittycreditcard.com. 5 NS ns-1839.awsdns-37.co.uk.
hellokittycreditcard.com. 5 NS ns-1222.awsdns-24.org.
hellokittycreditcard.com. 5 NS ns-1696.awsdns-20.co.uk.
Authority
The response has no authority records.
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0