It is a domain name with the ending Ninja after the dot. Ex. warrior.ninja. Anyone who is brave enough can get one. It is a great domain name for anyone that wants to spice the name up. History This TLD was delegated on 28 of December, 2013, but became available for the public the next year - 28 May 2014. At the moment there are more than 30,000 registered domains using .ninja. If you want to get