ns2.twdcns.com has no CNAME records.
Question and response
Question
dig ns2.twdcns.com. NS
Answer
The response has no answer records.
Authority
twdcns.com. 1670 SOA aa-eorcrp-dscsgm4-ns.disney.com. corp\.dns\.domains.disney.com. 43 10800 3600 2419200 1800
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0