The world of the internet has revolutionized the way people do business these days. In cyberspace, you must have a website to maximize your reach to the world. But, having a website is not enough; you also have to promote it through digital marketing. In online world there are many competitors and they have good position online for his keywords, because they did marketing and/or promotion works for his website to get good ranking online. So to get good ranking you need to understand that what is role of digital marketing in online website promotion.