Apex domains cannot have CNAME records.
Question and response
Question
dig rafaeljuliana.com. NS
Answer
rafaeljuliana.com. 5 NS ns2.rafaeljuliana.com.
rafaeljuliana.com. 5 NS ns1.rafaeljuliana.com.
Authority
The response has no authority records.
Additional
ns1.rafaeljuliana.com. 5 A 67.21.75.133
ns2.rafaeljuliana.com. 5 A 212.83.166.134
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0