Apex domains cannot have CNAME records.
Question and response
Question
dig coloni.net. NS
Answer
coloni.net. 5 NS ns-565.awsdns-06.net.
coloni.net. 5 NS ns-1099.awsdns-09.org.
coloni.net. 5 NS ns-1795.awsdns-32.co.uk.
coloni.net. 5 NS ns-176.awsdns-22.com.
Authority
The response has no authority records.
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0