Apex domains cannot have CNAME records.
Question and response
Question
dig duivelsespelletjes.com. NS
Answer
duivelsespelletjes.com. 5 NS ns-1131.awsdns-13.org.
duivelsespelletjes.com. 5 NS ns-392.awsdns-49.com.
duivelsespelletjes.com. 5 NS ns-12.awsdns-01.com.
duivelsespelletjes.com. 5 NS ns-1391.awsdns-45.org.
Authority
The response has no authority records.
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0