poste.paskov.net has no CNAME records.
Question and response
Question
dig poste.paskov.net. NS
Answer
The response has no answer records.
Authority
paskov.net. 4790 SOA ns.paskov.net. hostmaster.paskov.net. 2020060835 14400 3600 2419200 14400
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0