cloudns4.prolocation.net has no CNAME records.
Question and response
Question
dig cloudns4.prolocation.net. NS
Answer
The response has no answer records.
Authority
prolocation.net. 246 SOA ns1.as41887.nl. beheer.prolocation.net. 2026022310 14400 7200 1209600 86400
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0