Apex domains cannot have CNAME records.
Question and response
Question
dig trakehnerpferde.com. NS
Answer
trakehnerpferde.com. 5 NS ns-515.awsdns-00.net.
trakehnerpferde.com. 5 NS ns-20.awsdns-02.com.
trakehnerpferde.com. 5 NS ns-1925.awsdns-48.co.uk.
trakehnerpferde.com. 5 NS ns-592.awsdns-10.net.
Authority
The response has no authority records.
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0