test.raindog.de has no CNAME records.
Question and response
Question
dig test.raindog.de. NS
Answer
The response has no answer records.
Authority
raindog.de. 2181 SOA ns.inwx.de. hostmaster.inwx.de. 2025122604 10800 3600 604800 3600
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0