Gradio Spaces sharing to only users who have link

Is there a way to host an app on Gradio Spaces so that the app is accessible to people who have a specific link? I’m thinking of similar to how Google Docs let’s you limit viewing to only people who have the url. I want to be able to share my app with other people, but I’ve been getting too many strangers using it when I make its visibility completely public.

What about using gradio’s built in authentication? Sharing Your App