I use chrome to check my google positioning for my site. So, it's not signed in to my google account and I clear the browsing history before closing it. I just checked one of my SERPS with it and without clicking the result my realtime visitor tracking showed me as being on the site with the search that I just performed. This is without viewing the site preview or in fact even moving the mouse outside the search box.
I found that to be a bit spooky. It doesn't do it with Firefox.
Interestingly, it doesn't show as a page view or a hit in my other, not realtime tracking.
It only does it if I am #1 for the search, I have just noticed. Is that odd or what?
What does that do to your stats if you're the number one result?
No idea. It doesn't show on my statcounter stats but maybe it shows in GA or my server stats. The only reason I noticed it is that I have a live chat client that tells me when someone hits the site realtime. Otherwise I would never have noticed it.
Sure it's not just a delay as realtime is not perfect?
No, without even clicking the result it does it. I think g1smd is correct - it's pre fetching.