And can we recover it? Recently launched a upgraded e-commerce site and have taken a very heavy hit in traffic coming to the site, especially for previously well ranked keywords. Also the toolbar page rank is showing as N/A. Basically the client had a very old Joomla/VirtueMart site that hadn't really been upgraded since it launched back in 2008. In May their host upgraded the PHP on the host which in turn completely broke the site. We decided to migrate the data over and rebuild the site as a WooCommerce store. We got the new site back up on August 1st and since then the traffic is about a 1/4 or a 1/2 of what it was previously. There were major changes to the url structure, titles, meta descriptions, and the url changed from www to non-www We have a 301 redirect in place to handle the www url change, but have not had them in place to redirect the old VirtueMart pages to their WordPress counterparts, since we thought we had lost the old site.The old VirtueMart URL's were not very keyword or content friendly, and have been replaced with pretty friendly /category/product_name. I recently found a somewhat working development version of the old site, which could be used to setup the redirects from the old pages. Should we do this now or is it too late? And is there anything else we can do to recover what was lost in traffic and keyword ranking?