Apex domains cannot have CNAME records.
Question and response
Question
dig intercommit.nl. NS
Answer
intercommit.nl. 2 NS ns-329.awsdns-41.com.
intercommit.nl. 2 NS ns-536.awsdns-03.net.
intercommit.nl. 2 NS ns-1485.awsdns-57.org.
intercommit.nl. 2 NS ns-1797.awsdns-32.co.uk.
Authority
The response has no authority records.
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0