Apex domains cannot have CNAME records.
Question and response
Question
dig 10thsthardware.com. NS
Answer
10thsthardware.com. 3 NS ns-602.awsdns-11.net.
10thsthardware.com. 3 NS ns-412.awsdns-51.com.
10thsthardware.com. 3 NS ns-1678.awsdns-17.co.uk.
10thsthardware.com. 3 NS ns-1473.awsdns-56.org.
Authority
The response has no authority records.
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0