Page Speed Checker with the aid of SEO eBook (loose) is a Firefox extension that lets users effortlessly reveal internet site rankings for targeted keywords in Google (US and global variations), Yahoo, and Microsoft Live Search. But on occasion the consequences this unfastened Ping Tool checker affords may be alternatively faulty. The point is that the Rank Checker clusters a hundred results according to page to decrease scraping on Google. Such type of clustering can motive a shift in rating if compared to handiest seeing 10 outcomes in step with SERP.