Apex domains cannot have CNAME records.
Question and response
Question
dig ilovegreensboro.com. NS
Answer
ilovegreensboro.com. 5 NS ns-1183.awsdns-19.org.
ilovegreensboro.com. 5 NS ns-492.awsdns-61.com.
ilovegreensboro.com. 5 NS ns-83.awsdns-10.com.
ilovegreensboro.com. 5 NS ns-596.awsdns-10.net.
Authority
The response has no authority records.
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0