Complete list of Google algorithm updates for 2009.
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|#||Date||Update||Update type||Noticeable effect|
|2||Aug 10, 2009||Caffeine (Preview)||Infrastructure||None|
|1||Feb, 2009||Vince||Ranking signals||No estimate given|
On August 10 2009, Google announced an upcoming major improvement to the size, index, speed, accuracy, and comprehensiveness of their search engine index. This next-generation architecture, named Caffeine, was now available to the public on a temporary server for testing and feedback.
On June 8 2010, Google announced that Caffeine was live on all data centers.
What first appeared to be an update that favoured known brands in search results, Vince was later described by Google's Matt Cutts as increased importance of rankings signals such as trust and authority.
As Google's algorithms improve, search-friendly website rankings do as well. Learn more about search engine optimization.