Apex domains cannot have CNAME records.
Question and response
Question
dig poemsweetpoem.com. NS
Answer
poemsweetpoem.com. 5 NS ns1.poemsweetpoem.com.
poemsweetpoem.com. 5 NS ns2.poemsweetpoem.com.
Authority
The response has no authority records.
Additional
ns1.poemsweetpoem.com. 5 A 167.86.73.205
ns2.poemsweetpoem.com. 5 A 62.84.184.25
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0