tenable.systemeccloud.nl has no CNAME records.
Question and response
Question
dig tenable.systemeccloud.nl. NS
Answer
The response has no answer records.
Authority
systemeccloud.nl. 1821 SOA ns.systemec.nl. postmaster.systemeccloud.nl. 2026022001 28800 7200 604800 3600
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0