Apex domains cannot have CNAME records.
Question and response
Question
dig oakleysusa.org. NS
Answer
oakleysusa.org. 5 NS ns-721.awsdns-26.net.
oakleysusa.org. 5 NS ns-1440.awsdns-52.org.
oakleysusa.org. 5 NS ns-93.awsdns-11.com.
oakleysusa.org. 5 NS ns-934.awsdns-52.net.
Authority
The response has no authority records.
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0