The world of SEO has rapidly evolved over the past few years. Search engines such as Google are struggling to make sure that they offer the best services to their customers, so that they can find what they are looking for easily and more effectively. This is the reason why Google algorithm updates such as Panda and Penguin were developed. The fact that these updates were very aggressive in getting rid of sites that were considered not useful to users was welcome for many users, but for SEO exper