ispconfig.vm4.ro has no CNAME records.
Question and response
Question
dig ispconfig.vm4.ro. NS
Answer
The response has no answer records.
Authority
vm4.ro. 5522 SOA ns1.he.net. hostmaster.he.net. 2026021000 86400 7200 3600000 86400
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0