---- Zombie Traffic from Google and Traffic Shaping/Throttling - Analysis
Sgt_Kickaxe - 2:47 pm on Nov 22, 2012 (gmt 0)
4. Any clue HOW Google is accomplishing this effect?
Google already admitted that a small percentage of their results are served in order to test various things(from changes in layout to user reaction).
To take the idea further Google probably serves up zombie traffic on individual sites in order to get a baseline reading of various factors on each site. All sites/pages are graded individually and to measure them against others you need a baseline reading of some sort over time.
This is ironically a good way to zero out SEO changes to a site(which visitors don't see).