How can I check if a place is private (using TeleportService) ?

I'm doing a random teleport place for me and my friends. It selects a math.random number and if the math.random number is a valid place, it will teleport everyone in the game. But, if the game is a valid place, there's a chance that the place is private. How can I check if a place is private and how can I check other place stats such as visits or server size?