Apex domains cannot have CNAME records.
Question and response
Question
dig reeleezee.nl. NS
Answer
reeleezee.nl. 5 NS ns-833.awsdns-40.net.
reeleezee.nl. 5 NS ns-43.awsdns-05.com.
reeleezee.nl. 5 NS ns-2012.awsdns-59.co.uk.
reeleezee.nl. 5 NS ns-1181.awsdns-19.org.
Authority
The response has no authority records.
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0