Apex domains cannot have CNAME records.
Question and response
Question
dig linux2040.webawere.nl. NS
Answer
linux2040.webawere.nl. 4 NS ns1.webawere.nl.
linux2040.webawere.nl. 4 NS ns2.webawere.nl.
Authority
The response has no authority records.
Additional
ns1.webawere.nl. 4 A 185.158.165.26
ns2.webawere.nl. 4 A 95.142.98.222
ns1.webawere.nl. 4 AAAA 2a07:ae80:100:0:185:158:165:26
ns2.webawere.nl. 4 AAAA 2a00:1188:5:7:95:142:98:222
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0