cz7763.eudc.cloud has no CNAME records.
Question and response
Question
dig cz7763.eudc.cloud. NS
Answer
The response has no answer records.
Authority
eudc.cloud. 3454 SOA alpha.host-telecom.com. noc.host-telecom.com. 2025121701 3600 1800 1209600 86400
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0