It has a proprietary algorithm that looks at the keywords people are finding you with and letting you know which long tail keywords you have a clear shot of ranking high (e.g. position #1) for so you can write specific content targeting that phrase. Unfortunately, it's getting harder to do this as more referrer traffic is coming in as (not provided)
Thanks! That makes sense. I've noticed more and more "not provided". What's the deal with that? I was assuming I was doing something wrong :-( I don't much seo.
If you're authenticated when doing a search, google hides the kw for the target site. What you see now in keywords is just from users that aren't signed-in.
