When you purchase domain names from register.hostgator.com. Check the box next to: "Set Custom Nameservers (Optional)" in the domains cart and add your desired name servers. The domain will be registered with the name servers configured from the start. Our knowledge base has a lot of resources to help you! When will my domain start working? Can I use my account and my site even though my domain name hasn't propagated yet? What is an addon domain? How do I create/remove an addon domain? How to] Flush DNS.