ntp2.tds-sharedservices.de has no CNAME records.
Question and response
Question
dig ntp2.tds-sharedservices.de. NS
Answer
The response has no answer records.
Authority
tds-sharedservices.de. 287 SOA ns1.manage-now.de. hostmaster.security.tds.de. 2025070700 21600 3600 1209600 86400
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0