Apex domains cannot have CNAME records.
Question and response
Question
dig ericnorthman.net. NS
Answer
ericnorthman.net. 5 NS ns-826.awsdns-39.net.
ericnorthman.net. 5 NS ns-882.awsdns-46.net.
ericnorthman.net. 5 NS ns-36.awsdns-04.com.
ericnorthman.net. 5 NS ns-211.awsdns-26.com.
Authority
The response has no authority records.
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0