I am working with a client who apparently has been penalized by Bing. The site has been around for many years and they are an industry leader in their field. The site was previously indexed and received a substantial amount of traffic from Bing. Last week the site disappeared from Bing's index. A site: and url: search both show no results. Does anyone have a significant amount of knowledge or experience related to Bing penalties? Here is what I have done so far: http://www.bing.com/community/site_blogs/b/webmaster/archive/2009/03/19/getting-out-of-the-penalty-box.aspx This 2009 article states Bing's Summary Tool offers a "Site Status" section with a "Blocked" indicator which informs webmasters if a site is penalized. I have seen it before a long time ago, but apparently the field no longer exists. Is there a definitive means of determining if Bing has manually penalized a site besides a response from their Content Inclusion Request? Danny Sullivan wrote a great article about how Bing removed some sites for thin content last month. It seems two of the sites which were a focus of the article have been re-included in Bing's index. Bing claims an algorithm change where Danny seems skeptical. Either way this could be the same issue. http://searchengineland.com/bing-bans-holiday-deals-sites-102856 there are two recent complaints on Bing's forums about a similar issue where various webmasters shared their sites have been removed. There are no responses to these posts from Bing: http://www.bing.com/community/webmaster/f/12252/p/670360/9665163.aspx#9665163 and http://www.bing.com/community/webmaster/f/12252/t/670550.aspx?PageIndex=1 (the comments are relevant but not the initial post). Any ideas or suggestions would be helpful.