Google Penguin 2.0 now live - Penguin Update Releases!

Releases

Version Date Factors Impact
Penguin 2.0 25/26 May 2012 Data refresh
~2.3% (English Searches)
Penguin 1.2 05 October 2012 Data refresh
~0.1% (English Searches)
~0.4% (Spanish Searches)
~0.3% (Italian Searches)
~0.4% (French Searches)
Penguin 1.1 25/26 May 2012 Data refresh
~0.3% (English Searches)
Penguin 1.0 24-26 April 2012 Keyword stuffing, Spun content,
Unnatural linking
~3% (English Searches)

Penguin 1.1

It's only just gone live so not a lot of data but Matt Cutts described it as a refresh, which should mean a reprocessing of sites already hit. If you made changes you get to know if they were the right ones, check your traffic and rankings.

Penguin 1.0 factors

What Google Say

  • Keyword Stuffing
  • Spun content
  • Unnatural linking

What the web says

Inlinks

  • Paid links
  • Link networks
  • Low quality
  • Footer links
  • Unnatural link profiles

Keywords

  • Onpage keyword stuffing
  • Overuse of keywords in anchor text
  • Exact domain name match