zen.co.uk CNAME records

CNAME Canonical name
Apex domains cannot have CNAME records.

Question and response

Question

dig zen.co.uk. NS

Answer

zen.co.uk. 5 NS ns1.zen.co.uk. zen.co.uk. 5 NS ns0.zen.co.uk.

Authority

The response has no authority records.

Additional

ns0.zen.co.uk. 5 A 212.23.8.1 ns1.zen.co.uk. 5 A 212.23.3.1 . 0 OPT ; payload 1232, xrcode 0, version 0, flags 0