nameserver200.coolcom.com CNAME records

CNAME Canonical name
Apex domains cannot have CNAME records.

Question and response

Question

dig nameserver200.coolcom.com. NS

Answer

nameserver200.coolcom.com. 5 NS ns777.coolcom.com. nameserver200.coolcom.com. 5 NS ns77.coolcom.com. nameserver200.coolcom.com. 5 NS ns7.coolcom.com.

Authority

The response has no authority records.

Additional

ns7.coolcom.com. 3 A 72.249.68.145 ns77.coolcom.com. 3 A 209.142.64.139 ns777.coolcom.com. 3 A 165.140.159.117 . 0 OPT ; payload 1232, xrcode 0, version 0, flags 0