There is a very simple way of checking whether or not your server is configured correctly and that the server response code is optimal for SEO. This is important for search robot requests and can affect your position by as much as ten places in a search result if it’s setup incorrectly.
Simply visit http://responsetester.appspot.com type in your website’s URL into the box and click test now.
The responsinator (as the tool is named) will give you a score, hopefully an A+ if all is well.