Pagerank-SEO, LLC is a metro Washington DC search engine optimization (SEO) company. PageRank-SEO provides articles, gap analysis studies, Keyword Density Reports, Keyword Effectiveness Index value ratings, and SEO tools in compliance with World Wide Web Consortium guidelines. Services include meta tag optimization, generating web analytics reports, SEO research and implementation. The primary objective in Search Engine Optimization is to be found. Specifically, to have one's web site achieve a higher placement on organic Search Engine Results Pages (SERPs). While there is some variance in different genres of search terms, on average, 68% of the click throughs from SERPs are from the top ten results, i.e. from the first page. Of these (again, depending on the genre) between 24-31% of the click throughs occur from the 1st listing found, i.e. the top result. Realizing a greater Click Through Rate (CTR) defines a successful search matrices.