ntp2.adminforge.de has no CNAME records.
Question and response
Question
dig ntp2.adminforge.de. NS
Answer
The response has no answer records.
Authority
adminforge.de. 269 SOA ns1.cdom.de. hostmaster.cdom.de. 2026113165 3600 600 1209600 3600
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0