Is there a module that allow to access a page using a specific URL? I remember seeing this module a while ago, but can't for the life of me finding it. What it did was to only allow a page to be accessible by a specific link you set for it. So, if you just entered the URL into your browser, you would be redirected to, say, your home page.

Does anyone recall this module?
I remember doing something similar with the Rules module a while ago.

Take a look at the integrations for extended functionality - I think you can use the Tokens module with it.