Matt Cutts: Google Penguin 2.1 is Going Live Today

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Google Penguin 2.1 is launching today, according to a tweet from Google's Distinguished Engineer Matt Cutts.

The first update to the second-generation Penguin algorithm designed to target web spam will affect "~1% of searches to a noticeable degree."

Google Penguin 2.0 went live on May 22 and affected 2.3 percent of English-U.S. queries. When it launched, Cutts explained that while it was the fourth Penguin-related launch, Google referred to the change internally as Penguin 2.0 because it was an updated algorithm rather than just a data refresh.

"It's a brand new generation of algorithms," Cutts said in May. "The previous iteration of Penguin would essentially only look at the home page of a site. The newer generation of Penguin goes much deeper and has a really big impact in certain small areas."

This is Google's fifth Penguin-related launch.

Google originally launched the algorithm that was eventually become known as Penguin 1.0 in April 2012. There were two refreshes last year: in May and October.

You can learn more about Google Penguin 2.0 in our stories below.

About the author

Danny Goodwin formerly was Associate Editor of Search Engine Watch, where he also covered the latest search marketing and industry news. He joined Incisive Media in October 2007, in charge of copy editing columns that appeared on both Search Engine Watch and ClickZ. Prior to a life in the search industry, he worked in the journalism field, working in numerous newsroom positions, before later working as a freelance copy editor.