sms.dsnet.ro has no CNAME records.
Question and response
Question
dig sms.dsnet.ro. NS
Answer
The response has no answer records.
Authority
dsnet.ro. 9381 SOA ns1.netprotect.ro. alex.netprotect.ro. 2022060102 28800 7200 10800 10800
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0