icann.org CNAME records

CNAME Canonical name
Apex domains cannot have CNAME records.

Question and response

Question

dig icann.org. NS

Answer

icann.org. 5 NS a.icann-servers.net. icann.org. 5 NS ns.icann.org. icann.org. 5 NS c.icann-servers.net. icann.org. 5 NS b.icann-servers.net.

Authority

The response has no authority records.

Additional

a.icann-servers.net. 5 A 199.43.135.53 b.icann-servers.net. 5 A 199.43.133.53 c.icann-servers.net. 5 A 199.43.134.53 ns.icann.org. 5 A 199.4.138.53 a.icann-servers.net. 5 AAAA 2001:500:8f:0:0:0:0:53 b.icann-servers.net. 5 AAAA 2001:500:8d:0:0:0:0:53 c.icann-servers.net. 5 AAAA 2001:500:8e:0:0:0:0:53 ns.icann.org. 5 AAAA 2001:500:89:0:0:0:0:53 . 0 OPT ; payload 1232, xrcode 0, version 0, flags 0