Search engine optimisation or SEO is a method ,which when applied to a website , the site rankings in search engines increases. SEO is also known as internet marketing . There are many type of SEO  known as white hat ,grey hat and black hat . In these white hat is considered safest , which follows the guide lines of search engines . The higher a Web site ranks in the results of a search, the greater the chance that that site will be visited by a user. It is common practice for Internet users to not click through pages and pages of search results, so where a site ranks in a search is essential for directing more traffic toward the site.SEO helps to ensure that a site is accessible to a search engine and improves the chances that the site will be found by the search engine.There so many seo consultancy firms in chicao . Search Engine Optimization Chicago is mainly done by digitalthirdcoast . Chicago search engine optimisation companies are many , carefully select one worth among them . There are many other methods like PPP( pay per click) ,SMO (Social media optimisation ) . But among them SEO is the one which gives better ROI(return of investment ) usually .