Apex domains cannot have CNAME records.
Question and response
Question
dig hardnoxllc.com. NS
Answer
hardnoxllc.com. 5 NS ns2.hardnoxllc.com.
hardnoxllc.com. 5 NS ns1.hardnoxllc.com.
Authority
The response has no authority records.
Additional
ns1.hardnoxllc.com. 5 A 62.171.142.121
ns2.hardnoxllc.com. 5 A 81.17.98.114
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0