pss25.win.hostgator.com has no NS records.
NS records for this zone are defined at win.hostgator.com.
NS records for this zone are defined at win.hostgator.com.
Question and response
Question
dig pss25.win.hostgator.com. NS
Answer
The response has no answer records.
Authority
win.hostgator.com. 1800 SOA brady.ns.cloudflare.com. dns.cloudflare.com. 2399242383 10000 2400 604800 1800
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0