mit.edu CNAME records

CNAME Canonical name
Apex domains cannot have CNAME records.

Question and response

Question

dig mit.edu. NS

Answer

mit.edu. 5 NS use5.akam.net. mit.edu. 5 NS asia1.akam.net. mit.edu. 5 NS use2.akam.net. mit.edu. 5 NS ns1-37.akam.net. mit.edu. 5 NS usw2.akam.net. mit.edu. 5 NS ns1-173.akam.net. mit.edu. 5 NS eur5.akam.net. mit.edu. 5 NS asia2.akam.net.

Authority

The response has no authority records.

Additional

. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0