fi.spf.supremebox.com has no CNAME records.
Question and response
Question
dig fi.spf.supremebox.com. NS
Answer
The response has no answer records.
Authority
supremebox.com. 1455 SOA dns1.supremebox.com. hostmaster.supremebox.com. 1772699706 16384 2048 1048576 2560
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0