theater.piekert.de has no CNAME records.
Question and response
Question
dig theater.piekert.de. NS
Answer
The response has no answer records.
Authority
piekert.de. 10800 SOA theater.piekert.de. floppy.floppy.org. 2025110771 36000 7200 2419200 86400
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0