Search Engine Optimization is one of the techniques used to improve traffic to a website by obtaining a high-rank placement in the Search Engine Results Page (SERP) such as Google, Bing, Yahoo and others. Optimizing a website may involve editing its content, 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.