*.u28.multacom.com has no CNAME records.
Question and response
Question
dig *.u28.multacom.com. NS
Answer
The response has no answer records.
Authority
Multacom.COM. 1239 SOA ns2.Multacom.COM. webmaster.Multacom.COM. 2025082901 43200 900 604800 3600
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0