sys7.bocigroup.com has no CNAME records.
Question and response
Question
dig sys7.bocigroup.com. NS
Answer
The response has no answer records.
Authority
bocigroup.com. 305 SOA ns15.imsbiz.com. dnsadmin.imsbiz.com. 2025120401 10800 3600 604800 900
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0