ns3.om-powered.net has no CNAME records.
Question and response
Question
dig ns3.om-powered.net. NS
Answer
The response has no answer records.
Authority
om-powered.net. 610 SOA ns1.openminds.be. hostmaster.openminds.be. 2772532390 14400 3600 604800 3600
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0