Apex domains cannot have CNAME records.
Question and response
Question
dig tipsalogs.de. NS
Answer
tipsalogs.de. 1 NS ns2a.dodns.net.
tipsalogs.de. 1 NS ns1a.dodns.net.
Authority
The response has no authority records.
Additional
ns1a.dodns.net. 1 A 217.160.82.254
ns2a.dodns.net. 1 A 185.132.35.254
ns1a.dodns.net. 1 AAAA 2001:8d8:fe:53:217:160:82:254
ns2a.dodns.net. 1 AAAA 2607:f1c0:fe:53:185:132:35:254
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0