attdns.com CNAME records

CNAME Canonical name
Apex domains cannot have CNAME records.

Question and response

Question

dig attdns.com. NS

Answer

attdns.com. 5 NS ns4.attdns.com. attdns.com. 5 NS ns2.attdns.com. attdns.com. 5 NS ns1.attdns.com. attdns.com. 5 NS ns3.attdns.com.

Authority

The response has no authority records.

Additional

ns1.attdns.com. 5 A 144.160.112.22 ns2.attdns.com. 5 A 144.160.128.140 ns3.attdns.com. 5 A 144.160.20.47 ns4.attdns.com. 5 A 144.160.229.11 . 0 OPT ; payload 1232, xrcode 0, version 0, flags 0