Why are there spikes in the RankPulse Index?
As is evident from the RankPule Index on the homepage, Google is constantly making changes to search results. Google seems to make small daily tweaks to the algorithm, but about once a month, they enact massive reindexings. During these times, there are significant fluctuations in results, and some sites drop out of the top ten, only to be replaced with other sites. The spikes in the RankPulse Index are graphical representations of these severe amendments.
