Apex domains cannot have CNAME records.
Question and response
Question
dig shoppingstyle.us. NS
Answer
shoppingstyle.us. 3 NS ns-778.awsdns-33.net.
shoppingstyle.us. 3 NS ns-308.awsdns-38.com.
shoppingstyle.us. 3 NS ns-3.awsdns-00.com.
shoppingstyle.us. 3 NS ns-1179.awsdns-19.org.
Authority
The response has no authority records.
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0