acglob.thirdns.de has no CNAME records.
Question and response
Question
dig acglob.thirdns.de. NS
Answer
The response has no answer records.
Authority
thirdns.de. 3239 SOA acglob.firstns.cc. support.anexia-it.com. 8 14400 3600 604800 3600
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0