Google penalizes websites for a variety of reasons. The purpose of penalizing online businesses is to improve the user-experiences of the visitors. Websites deserve to be penalized if they:
☒ Buying links
☒ Duplicate/plagiarize content
☒ Overload content with keywords
☒ Hidden text on Content
☒ Using Spam to Rank
☒ Hidden links on Website
☒ Overuse anchor text
☒ Hide sponsors links