chello062179081030.chello.pl has no CNAME records.
Question and response
Question
dig chello062179081030.chello.pl. NS
Answer
The response has no answer records.
Authority
chello.pl. 10800 SOA ns1.upc.biz. domainadmin.libertyglobal.com. 2023121102 14400 3600 691200 43200
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0