Apex domains cannot have CNAME records.
Question and response
Question
dig nw011.com. NS
Answer
nw011.com. 5 NS ns-883.awsdns-46.net.
nw011.com. 5 NS ns-1291.awsdns-33.org.
nw011.com. 5 NS ns-1711.awsdns-21.co.uk.
nw011.com. 5 NS ns-92.awsdns-11.com.
Authority
The response has no authority records.
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0