Apex domains cannot have CNAME records.
Question and response
Question
dig wavefield.us. NS
Answer
wavefield.us. 3 NS ns-1601.awsdns-08.co.uk.
wavefield.us. 3 NS ns-1089.awsdns-08.org.
wavefield.us. 3 NS ns-872.awsdns-45.net.
wavefield.us. 3 NS ns-1478.awsdns-56.org.
Authority
The response has no authority records.
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0