ns3.alphacron.de has no CNAME records.
Question and response
Question
dig ns3.alphacron.de. NS
Answer
The response has no answer records.
Authority
alphacron.de. 9516 SOA ns1.alphacron.de. mp.alphacron.de. 2026021500 43200 7200 1209600 86400
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0