ns4.databank.com has no CNAME records.
Question and response
Question
dig ns4.databank.com. NS
Answer
The response has no answer records.
Authority
databank.com. 3181 SOA ns3.databank.com. ipadmin.databank.com. 2026021215 7200 3600 1209600 3600
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0