Google Algorithm Change History: Are you know

Each year, Google changes its search algorithm around 500–600 times. While most of these changes are minor, every few months Google rolls out a “major” algorithmic update that affects search results in significant ways. For search marketers, knowing the dates of these Google updates can help explain changes in rankings and organic website traffic. Below, we’ve listed the major algorithmic changes that made the biggest impacts on search. Understanding these updates can help with search engine optimization. Unnamed Update — August 20, 2013 Multiple sources confirmed a Google algorithm update. MozCast spiked at 103° F on August 20th, while other sources indicated activity around August 21st. Ranking flux was heavy in the top 3 spots, which matched the first Penguin update, but Google has not confirmed this event.