SEO - Search Engine Optimization is the process to improve volume and quality of the traffic to a Web site from search engines by the intermediary (“organic” or “algorithmic”) of the “normal” results of research. SEO can also aim various kinds of research, including the search of image, local research, and industry-specific vertical search engines.

Strategy of sale to increase the relevance of a site, SEO considers how the algorithms of research function and which people to seek. The efforts of SEO can imply coding, the presentation, and the structure of a site, as well as the problems of repair which could entirely prevent programmes of indexing of Search Engine of spidering a site. Other, of the apparent efforts can include to add the single contents to a site, and to make sure that the contents are easily classified by search engines and also call upon the human visitors.

The optimizers of Search Engine can offer SEO like autonomous service or part of a broader selling campaign. Since effective SEO can require changes with the source code of HTML of a site, the tactics of SEO can be incorporated in the development and the design of Web site. The term “Search Engine friendly” can be employed to describe the designs of Web site, the menus, the content systems of management and the caddies it is easy to optimize that.