SEO is a technique which helps search engines find and rank your site higher than the millions of other sites in response to a search query. SEO may target different kinds of search, including image search, local search, video search and industry-specific vertical search engines. As an Internet marketing strategy, SEO considers how search engines work and what people search for.
Optimizing a website may involve editing its content and HTML and associated coding to both increase its relevance to specific keywords and to remove barriers to the indexing activities of search engines. Promoting a site to increase the number of backlinks, or inbound links, is another SEO tactic.