Apex domains cannot have CNAME records.
Question and response
Question
dig brookscard.com. NS
Answer
brookscard.com. 5 NS ns-312.awsdns-39.com.
brookscard.com. 5 NS ns-1520.awsdns-62.org.
brookscard.com. 5 NS ns-107.awsdns-13.com.
brookscard.com. 5 NS ns-1457.awsdns-54.org.
Authority
The response has no authority records.
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0