ns3.v2tel.dk has no CNAME records.
Question and response
Question
dig ns3.v2tel.dk. NS
Answer
The response has no answer records.
Authority
v2tel.dk. 3493 SOA ns1.v2tel.dk. hostmaster.v2tel.dk. 2025040903 10800 3600 604800 3600
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0