yoyo.quintex.com has no CNAME records.
Question and response
Question
dig yoyo.quintex.com. NS
Answer
The response has no answer records.
Authority
quintex.com. 3521 SOA phoenix.quintex.com. john.quintex.com. 2023126599 60 60 60 3600
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0