ns.rdsnet.tech has no CNAME records.
Question and response
Question
dig ns.rdsnet.tech. NS
Answer
The response has no answer records.
Authority
rdsnet.tech. 3203 SOA ns.rdsnet.ro. dns-adm.rdsnet.ro. 2026020502 1200 180 2016000 3600
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0