Force Log In / Register

How do you want that to work? Is the user supposed to log in before then see anything, or do you want a modal overlay telling users ot login before then can see anything on the current page that they are looking at?

Either way, you could be in trouble with SEO. Google is very smart with things like that these days, and “hiding” content for logged-in only users pretty much hides it from the search engine bots as well, so anything that’s behind a gateway won’t get indexed and won’t count towards your sites rankings.