Apex domains cannot have CNAME records.
Question and response
Question
dig fduniform.com. NS
Answer
fduniform.com. 4 NS ns1.fduniform.com.
fduniform.com. 4 NS ns2.fduniform.com.
Authority
The response has no authority records.
Additional
ns1.fduniform.com. 4 A 107.158.144.22
ns2.fduniform.com. 4 A 173.232.171.5
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0