dnsauth1.kabeltex.nl has no CNAME records.
Question and response
Question
dig dnsauth1.kabeltex.nl. NS
Answer
The response has no answer records.
Authority
kabeltex.nl. 2739 SOA dnsauth1.kabeltex.nl. administratie.kabeltex.nl. 2026021302 10800 3600 604800 3600
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0