Since the first search engine was born in the ’90s, people who would try to exploit search algorithms and find the easy path to the top of the search results were also born. This has become problematic for search engines trying to provide users with the best results but spam websites would come out on top.
As a result, Google made improvements on its algorithm so that it can better evaluate websites for shady tactics and easily detect spam. And to avoid these websites from ruining the users’ experience, Google started slapping spam websites with manual actions.