For a website to receive visitors, people must be able to find it in search engines. When a search engine "crawls" a website to add content to its index, it scans all of the text in the website's content and HTML code to determine what the website is about. Search Engine Optimization (SEO) involves creating your website to contain the text and images that people are most likely to search for about a given topic. http://www.trifectaky.com/search-engine-optimization.php