Apex domains cannot have CNAME records.
Question and response
Question
dig esencia-design.com. NS
Answer
esencia-design.com. 5 NS ns1.esencia-design.com.
esencia-design.com. 5 NS ns2.esencia-design.com.
Authority
The response has no authority records.
Additional
ns1.esencia-design.com. 5 A 104.206.1.174
ns2.esencia-design.com. 5 A 173.232.67.242
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0