topstar - 3:27 pm on May 24, 2012 (gmt 0)
major change to your site's content, content management system, or server architecture.
After losing traffic since last October (Panda) and now Penguin I redesigned the whole site and within hours of launching the new site it lost all top rankings. 301s and 404s are set up correctly. Is this sandbox or a new filter and how long would it take to come back? Anyone else had a major change (layout, urls, internal linking) during the last months?