Apex domains cannot have CNAME records.
Question and response
Question
dig furntiture.com. NS
Answer
furntiture.com. 5 NS ns-451.awsdns-56.com.
furntiture.com. 5 NS ns-460.awsdns-57.com.
furntiture.com. 5 NS ns-957.awsdns-55.net.
furntiture.com. 5 NS ns-94.awsdns-11.com.
Authority
The response has no authority records.
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0