About a week ago I noticed that http://rapidsignal.com/ was sometimes having a PageRank of 6 (I see this in Google Toolbar). So I started checking http://www.pageranktool.net/ regularly, which checks a URL’s PageRank in multiple Google servers.

PR is constantly changing: sometimes most servers report a PR6 while other times half the servers report a PR5 and half a PR6. For two days now very few servers report a PR5. I hope it stabilizes on 6 :-)

I have no idea what triggered this change. It’s not like I suddenly got many new incoming links or anything. Not that I complain. On the other hand my position for relative searches hasn’t changed, from what I can see, so I’m not sure what’s the benefit of higher PR. Maybe better positioning will come in time or maybe I am not targeting keywords effectively.