webcluster4.cube.zeppelin-group.com has no CNAME records.
Question and response
Question
dig webcluster4.cube.zeppelin-group.com. NS
Answer
The response has no answer records.
Authority
zeppelin-group.com. 86 SOA ns1.register.it. hostmaster.register.it. 2025110604 10800 3600 604800 86400
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0