August 19, 2009 at 3:18 pm
#803263
Member
I don’t have solid proof, but I have seen a slight trend in some of the sites I have worked on where they begin to climb in ranking for key terms as traffic increased even though the content was static. I think it would make sense for google to want to give higher placement to sites that get a lot of traffic. Much like a link is a vote of confidence from a website, a visit, especially one of length is a vote of confidence from a viewer. I bet the equation takes into account bounces and only gives credit for visitors who stay for at least x seconds. My guess is 20-30 but it might be higher.