ns2.delong.com has no CNAME records.
Question and response
Question
dig ns2.delong.com. NS
Answer
The response has no answer records.
Authority
delong.com. 60 SOA ns.delong.sj.ca.us. postmaster.delong.sj.ca.us. 2026011692 43200 300 604800 60
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0