Search Engine Optimization (SEO optimization, even after) is a process of editing and layout of the contents of a Web page or Web site, its potential importance for certain keywords to specific search engine, and, in particular, to ensure that external links to Web sites are correct title and wealth. This is done in order to achieve greater supply of organic search, and therefore increase the volume of visits, carried out by search engines.
SEO is one of the most important Web marketing activities and target different types of search, including image search, local search, and industry-specific vertical search engines.
SEO considers how search engines work and what people are looking for. Optimizing the website above to release their contents and HTML coding for an increase in their significance for specific keywords, and to remove obstacles to the activities of the search index. Sometimes, instead of the structure (relationships between its contents) should be changed, too. For this reason, from the perspective of the customer and always to optimize the best search engine, where the Web site developed to try to apply retroactively.
Another class of techniques, known as black hat SEO or spamdexing, use methods such as link farms and keyword stuffing that undermine the relevance of search results and experiences of users of search engines. In the search engine to find sites that use these techniques to eliminate from its indices.
The term “search engine friendly” refers to a web site, search optimized.