I am looking for a tool that can measure keyword SE results overlap. I.e. if I have 1000 keywords that are similar, if I select Google I want to know what percentage of unique results each keyword generates. The number of times, I use Scrapebox, and after a massive scrape it removes duplicates and it says 80% to 90% duplicates removed, has got me thinking. That's with 1 SE...how bad must it be when you are using SE's powered on the same engine! What a waste to go and have to parse all these URL's in the various tools we use. Do you have any ideas on how to do this??? I.e. measure keyword SE results overlap?