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What Triggers the “Penguin”?
  • Buying links. It’s a violation of Google’s Webmaster Guidelines to acquire links that pass PageRank in exchange for money or products.
  • Lack of anchor text diversity. Text inside backlinks is another factor affecting the quality of your link profile. If this text is the same everywhere, it will look to Google like an attempt to manipulate your rankings.
  • Low quality of links. A backlink will set Penguin off if the content surrounding it is low-quality or contextually irrelevant to the linked page. You can’t always control who links to you, but you should do all you can to get rid of links that harm you.
  • Keyword stuffing. Surprise! You’d think this would be Panda’s territory, since keywords are on-page content. But Penguin also watches for an unnatural use of keywords. Have you ever encountered pages with long, near-meaningless sentences filled with dozens of search queries? That’s what keyword stuffing looks like at its worst.