Apex domains cannot have CNAME records.
Question and response
Question
dig octoberu.com. NS
Answer
octoberu.com. 5 NS ns-578.awsdns-08.net.
octoberu.com. 5 NS ns-1382.awsdns-44.org.
octoberu.com. 5 NS ns-1426.awsdns-50.org.
octoberu.com. 5 NS ns-348.awsdns-43.com.
Authority
The response has no authority records.
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0