113.21.81.in-addr.arpa CNAME records

CNAME Canonical name
Apex domains cannot have CNAME records.

Question and response

Question

dig 113.21.81.in-addr.arpa. NS

Answer

113.21.81.in-addr.arpa. 5 NS dns1.muerznet.at. 113.21.81.in-addr.arpa. 5 NS dns2.muerznet.at.

Authority

The response has no authority records.

Additional

dns1.muerznet.at. 5 A 81.21.112.130 dns2.muerznet.at. 5 A 81.21.113.130 . 0 OPT ; payload 1232, xrcode 0, version 0, flags 0