ns3.opusinteractive.io has no CNAME records.
Question and response
Question
dig ns3.opusinteractive.io. NS
Answer
The response has no answer records.
Authority
opusinteractive.io. 204 SOA ns1.opusinteractive.io. sysadmin.opusinteractive.com. 2026021001 3600 600 1209600 300
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0