Apex domains cannot have CNAME records.
Question and response
Question
dig greaternorthwestchimney.com. NS
Answer
greaternorthwestchimney.com. 4 NS ns-1395.awsdns-46.org.
greaternorthwestchimney.com. 4 NS ns-1451.awsdns-53.org.
greaternorthwestchimney.com. 4 NS ns-125.awsdns-15.com.
greaternorthwestchimney.com. 4 NS ns-600.awsdns-11.net.
Authority
The response has no authority records.
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0