Have mozrank factors changed to cause drop?

[thappe]

Our site's mozrank recently dropped, but so did all our competitors. Have there been some updates to the factors to cause this change?

[KeriMorgret]

The domain authority has changed for many sites, though I'm not sure how much effect it's having on MozRank. Check out the answer from a linkscape engineer on this thread at http://www.seomoz.org/q/domain-authority-decrease-after-open-site-explorer-update-reasons. Let me know if that provides enough of an answer for you, or if you'd like me to research this more.

[thappe]

I'm sorry, I actually meant to say domain authority.