Apex domains cannot have CNAME records.
Question and response
Question
dig 1stoptire.com. NS
Answer
1stoptire.com. 5 NS ns-1188.awsdns-20.org.
1stoptire.com. 5 NS ns-1509.awsdns-60.org.
1stoptire.com. 5 NS ns-292.awsdns-36.com.
1stoptire.com. 5 NS ns-368.awsdns-46.com.
Authority
The response has no authority records.
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0