an.drer.weg.de has no CNAME records.
Question and response
Question
dig an.drer.weg.de. NS
Answer
The response has no answer records.
Authority
weg.de. 22 SOA ns-2035.awsdns-62.co.uk. awsdns-hostmaster.amazon.com. 1 7200 900 1209600 86400
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0