s26673.creolineserver.com has no CNAME records.
Question and response
Question
dig s26673.creolineserver.com. NS
Answer
The response has no answer records.
Authority
creolineserver.com. 3600 SOA ns1.creolineserver.com. noc.creoline.de. 2026030609 7200 1800 1209600 3600
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0