Apex domains cannot have CNAME records.
Question and response
Question
dig aeneas.com. NS
Answer
aeneas.com. 4 NS ns6.aeneas.net.
aeneas.com. 4 NS ns8.aeneas.net.
aeneas.com. 4 NS ns7.aeneas.net.
Authority
The response has no authority records.
Additional
ns6.aeneas.net. 4 A 69.42.33.11
ns7.aeneas.net. 4 A 69.42.33.12
ns8.aeneas.net. 4 A 69.42.44.11
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0