customers.globit.pl has no CNAME records.
Question and response
Question
dig customers.globit.pl. NS
Answer
The response has no answer records.
Authority
globit.pl. 10800 SOA ns1.oktaweb.pl. hostmaster.oktaweb.pl. 2024062503 28800 7200 1209600 86400
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0