I am trying to create a user manual for our software which would be stored on WordPress. But I don't want it accessible to just anyone, it should be hidden, at the very least not indexed by search engines. I know how to set pages not to be indexed so that they are "private".
But is there a way to take it a step further and have the pages ONLY load if they are referred by the software? So let's say a user is in one of our modules and there's a Help button, they click on it and it takes them to the right page on WP. But WP checks to see where the link came from and if it came from the software it will display, otherwise not.
That would be the best case scenario, any ideas if this is achievable?