At our SMX Advanced conference earlier this month, the head of Google’s spam fighting team, Matt Cutts, explained that the Panda filter isn’t running all the time. Right now, it’s too much computing power to be running this particular analysis of pages.
Instead, Google runs the filter periodically to calculate the values it needs. Each new run so far has also coincided with changes to the filter, some big, some small, that Google hopes improves catching poor quality content. So far, the Panda schedule has been like this:
Panda Update 1.0: Feb. 24, 2011
Panda Update 2.0: April 11, 2011 (about 7 weeks later)
Panda Update 2.1: May 10, 2011 (about 4 weeks later)
Panda Update 2.2: June 16, 2011 (about 5 weeks later)
Recovering From Panda
For anyone who was hit by Panda, it’s important to understand that the changes you’ve made won’t have any immediate impact.
For instance, if you started making improvements to your site the day after Panda 1.0 happened, none of those would have registered for getting you back into Google’s good graces until the next time Panda scores were assessed — which wasn’t until around April 11.
With the latest Panda round now live, Google says it’s possible some sites that were hit by past rounds might see improvements, if they themselves have improved.