TheOptimizationIdiot - 6:11 pm on Mar 8, 2013 (gmt 0)
It seems like when I observe SERP position with WMT, my KW positions tend to rise while total impression stays the same.
Some of that is possible depending on how much the rise is. If you go from 10 to 5 your impressions would stay the same, because it's all on the same page, but if you're going from 12 to 4 it would seem like the impressions should increase quite a bit unless something like the "page one full of results from one site bs" is driving a much higher % of people to page two than used to visit it and then they could remain relatively static even for a bigger jump in positions.
That is only possible through active and intentional algorithmatic SERP index shuffling isn't it?
It seems that way but I can't decide if it's personalization or just "split testing" and the average position of when the result set you're in stays relatively constant but that result set is only shown 1/2 or 1/3 the time, which would make it look like you're in the same position all day every day when you're really only showing to people in the position you're seeing listed a fraction of the time you would if there was only one result set. (I think I'm saying what I'm thinking right, but please try to go with the point if it's not coming out in a way that's quite making sense.)