Apex domains cannot have CNAME records.
Question and response
Question
dig nw010.com. NS
Answer
nw010.com. 5 NS ns-1516.awsdns-61.org.
nw010.com. 5 NS ns-638.awsdns-15.net.
nw010.com. 5 NS ns-100.awsdns-12.com.
nw010.com. 5 NS ns-1699.awsdns-20.co.uk.
Authority
The response has no authority records.
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0