Dear friends, PR referring to Page Rank start by Google for the Search Engine Ranking of a website to be displayed on the Google Search. Their are lots and lots of website that have PR 10. Lots of website have PR changed but people might have noticed that Google PR also have changed.
Yes you people might have already known that Google was on PR 10 since it was made but check out the PR of Google in current context. It has decreased. Yes it has decreased to PR 9.
Check out the PR change on the fastest PR checker tool.