Website Rankings Dropped April 12

[AdamWormann]

A client website dropped drastically on April 12.  Outside of some branded keywords, search results dropped off of the first page and are buried on page 3+ at best.  Nothing has changed on the site, and there were no problems with the link profile.  GWT has no manual actions.  Kind of at a loss.

Does anyone know if there was an algorithm update or anything external that may be causing some problems here?  Site is www.averybiomedical.com if you want to take a look, but I'm just curious if there was anything I should be aware of.  Thanks for the help!

[WhoWuddaThunk]

Google doesn't always tell you when you when they take action on a site.  It could have been some minor algorithm tweak that put you over the edge in some capacity.  We took over two clients who had a massive amount of linking between their own websites.  This randomly caused a penalty.  I'm 99% sure this is the cause because removing them fixed it, putting them back broke it again and removing it the final time fixed it for good.

Maybe look at your link profile for excessive site wides, or any over optimization.