ns4.thehost.pro has no CNAME records.
Question and response
Question
dig ns4.thehost.pro. NS
Answer
The response has no answer records.
Authority
thehost.pro. 1132 SOA ns1.thehost.pro. hostmaster.thehost.pro. 2024110710 10800 3600 604800 86400
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0