dtms.de CNAME records

CNAME Canonical name
Apex domains cannot have CNAME records.

Question and response

Question

dig dtms.de. NS

Answer

dtms.de. 4 NS ns01.systemhaus.net. dtms.de. 4 NS ns02.systemhaus.net.

Authority

The response has no authority records.

Additional

ns01.systemhaus.net. 4 A 212.125.36.1 ns02.systemhaus.net. 4 A 212.125.57.102 . 0 OPT ; payload 1232, xrcode 0, version 0, flags 0