MikeLevin - 4:36 pm on Feb 28, 2013 (gmt 0) [edited by: goodroi at 5:57 pm (utc) on Feb 28, 2013]
Yes, it is likely on every search impression. I was hit with this. I knew my personal site couldn't be spiking up to 12K/day all of the sudden. It doesn't show in Google Analytics or HitTail, but it does show in WordPress JetPack. Here's a pic of my report. I was getting very close to pulling my weblogs from my host to go over them by hand until I read this. I'm using rel=prerender.
[edit reason] Please no links to personal blogs [/edit]
[edited by: goodroi at 5:57 pm (utc) on Feb 28, 2013]