Forum Moderators: Robert Charlton & goodroi
The exact same thing happened with my site yesterday. But our serps are fine. If we'd been penalized we'd be out of the serps right?
Just to pinpoint that PR0 is also a penalty, Grey bar (not even PR0) is a removal from the index.
Sometimes google gives PR0 / no more backlinks to a site in order to penalize it, but keep it in its index.
Grey bar is when the page is not in the index - I have seen a homepage go grey bar as just that page has been dropped from the index (while the rest of the site remains) - and then the home page gets listed again and PR returns.
PR0 could just be very low PR caused by crawling problems. (eg my theory that Google can not determine the root page)
With G having so many bugs at the moment it is hard to tell what is definetly a penalty and what is a bug.