david.speedpartner.de has no CNAME records.
Question and response
Question
dig david.speedpartner.de. NS
Answer
The response has no answer records.
Authority
speedpartner.de. 33 SOA ns1.dnspartner.de. hostmaster.speedpartner.de. 2026022601 28800 14400 604800 86400
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0