The basic idea behind search engine optimization is to improve a Web page or an entire Web site to become more successful in search engine results. Sounds simple, but it isn't. On-page optimization is perhaps the most common task of search engine optimization and each page's performance within search engine results can often be improved greatly. Search engine optimization of today requires in-debt knowledge of search engines and content management. Designing a Web site, managing a Web site, marketing a Web site and building links for a Web site are all elements of a successful search engine optimization strategy.