Apex domains cannot have CNAME records.
Question and response
Question
dig neo.space. NS
Answer
neo.space. 5 NS ns-1928.awsdns-49.co.uk.
neo.space. 5 NS ns-213.awsdns-26.com.
neo.space. 5 NS ns-835.awsdns-40.net.
neo.space. 5 NS ns-1433.awsdns-51.org.
Authority
The response has no authority records.
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0