Search engine optimization or SEO describes the process of increasing the visibility of a website on search engines such as Google, Bing or Yahoo in order to increase website traffic. Its goal is to improve a web page so that the search engine can read and analyze it. At best, this results in the website ranking in the top ten search results. The most important tasks include creating and optimizing relevant content, using specific keywords, title tags, or meta descriptions, and building backlinks to the website. Search engine optimization can be divided into two categories: on-page and off-page SEO. On-page SEO focuses on the website itself while off-page SEO refers to page ranking factors that occur outside of a website, like backlinks from another site.