ns910.hostgator.com has no CNAME records.
Question and response
Question
dig ns910.hostgator.com. NS
Answer
The response has no answer records.
Authority
hostgator.com. 637 SOA cody.ns.cloudflare.com. dns.cloudflare.com. 2397265122 10000 2400 604800 1800
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0