Apex domains cannot have CNAME records.
Question and response
Question
dig oculipernberth.com. NS
Answer
oculipernberth.com. 2 NS ns2.oculipernberth.com.
oculipernberth.com. 2 NS ns1.oculipernberth.com.
Authority
The response has no authority records.
Additional
ns1.oculipernberth.com. 2 A 69.65.31.141
ns2.oculipernberth.com. 2 A 209.212.157.14
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0