Penguin 5, With The Penguin 2.1 Spam-Filtering Algorithm, Is Now Live

The fifth confirmed release of Google’s “Penguin” spam fighting algorithm is live. That makes it Penguin 5 by our count. But since this Penguin update is using a slightly improved version of Google’s “Penguin 2″ second-generation technology, Google itself is calling it “Penguin 2.1.” Don’t worry. We’ll explain the numbering nonsense below, as well as what this all means for publishers.

New Version Of Penguin Live Today

The head of Google’s web spam team, Matt Cutts, shared the news on Twitter, saying the latest release would impact about 1 percent of all searches:

Source: http://searchengineland.com/penguin-2-1-and-5-live-173632