Greetings. We are having quite a few issues with crawling. First of all, we noticed that Rich Snippets aren't working; not only that, but the testing tool in Webmasters constantly says that "URL has not been found". We've been trying with W3C validator and we got a 400 error; Xenu Link Sleuth returns a blank page as well. In Webmasters, it wouldn't seem like crawling is an issue, although there is a meaninglessly high number of 404s - almost a third of our submitted pages, but this is extremely misleading (we have Wordpress and I'm using a broken link checker plugin). What's happening? Is this a problem with the code, a conflict with some WP plugin or what else? Please, help us. The URL is http://www.worldsfactory.net Thanks in advance.