ns3.infobunker.com has no CNAME records.
Question and response
Question
dig ns3.infobunker.com. NS
Answer
The response has no answer records.
Authority
infobunker.com. 1490 SOA ns1.infobunker.com. hostmaster.infobunker.com. 2025121701 28800 7200 2419200 3600
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0