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From Blumentals Software:
Rapid SEO Tool is unique search engine optimization software designed to ease the task of getting web pages higher on search results. It will literally look at your web page code and suggest what should be improved to get better results. You don't even have to be an SEO professional. Rapid SEO Tool is the first full-scale side-by-side SEO software that will compare your SEO efforts against your competitors and suggest how to overtake them. Unlike other search engine optimization tools and keyword density analyzers, Rapid SEO Tool is not about keyword stuffing, but rather about smart comparison.