exchange.cornell.edu CNAME DNS records

CNAME Canonical name

Apex domains cannot have CNAME records.

Question and response

Question

dig exchange.cornell.edu. NS

Answer

exchange.cornell.edu. 2 NS drdns.cit.cornell.edu. exchange.cornell.edu. 2 NS bigred.cit.cornell.edu. exchange.cornell.edu. 2 NS cudns.cit.cornell.edu. exchange.cornell.edu. 2 NS dns.cit.cornell.edu. exchange.cornell.edu. 2 NS drdns2.cit.cornell.edu.

Authority

The response has no authority records.

Additional

dns.cit.cornell.edu. 2 A 192.35.82.53 cudns.cit.cornell.edu. 2 A 132.236.56.252 drdns.cit.cornell.edu. 2 A 52.152.185.125 bigred.cit.cornell.edu. 2 A 128.253.180.35 drdns2.cit.cornell.edu. 2 A 52.45.47.12 . 0 OPT ; payload 1232, xrcode 0, version 0, flags 0