Apex domains cannot have CNAME records.
Question and response
Question
dig coqui.com. NS
Answer
coqui.com. 2 NS ns1.coqui.net.
coqui.com. 2 NS ns2.coqui.net.
Authority
The response has no authority records.
Additional
ns1.coqui.net. 2 A 196.28.61.33
ns2.coqui.net. 2 A 196.28.61.34
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0