This document provides an overview of search engine optimization (SEO). It defines SEO as the process of optimizing on-page and off-page ranking factors to achieve high search engine rankings. It discusses how search engines work by crawling the web to index content and then ranking results. Popular search engines and SEO statistics are presented. The importance of SEO for marketing is explained. Key on-page and off-page ranking factors are identified. Steps for developing an SEO strategy and basic optimization techniques are outlined.
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