What would cause all main pages to go from various PR1 PR2 PR3 to PR Unranked?

[irvingw]

Weird, my rankings have fallen on one of my sites and all the main pages that were ranking are now PR unranked.

We did ad some domains to a disavow file, but nothing major that should have had an impact like this. Pages are all allowed to be indexed and not blocked and are currently indexed in Google.

Can Google just come around and decide they don't like these pages anymore and PR unrank them all?

[garethbrown]

There's probably more to it than them not liking your pages You say you've uploaded a disavow file, did you get an unnatural link warning? Has your homepage lost PR as well? Might be worth sharing your URL so we can have a better look at what is going on.

[johnny122]

Hi,

I saw the same result for a webmaster that accepted paid links from a casino/poker room on his homepage. I don't know the other possible reasons. Hope community can help :).

I have question : did you lose ranks on your keywords ater the PR loss ?

Erwan.

[Kurt_Steinbrueck]

I've seen this as well with sites buying or selling links.  Also, keep in mind that the Google toolbar PR and a site's real PageRank (authority) are two different things.  I've seen Google mess with people's toolbar PR before without actually penalizing them (manually or by algorithm), especially when dealing with paid links.

Without more info, it's hard to identify what the real problem is.

Kurt Steinbrueck
OurChurch.Com

[Dr-Pete]

I'd second Erwan's questions - did other signals confirm the Toolbar PR update? Have you lost ranking, search traffic, etc.

Not only is TBPR notoriously unreliable, but this could reflect something that happened 3-6+ months ago, and maybe it's reversed by now. It's very, very hard to pin down a timeline from TBPR, and if you were penalized, a timeline is critical.