This tutorial describes how you can quickly track 404s or Page Not Found errors on your website or blog.
When you type a non-existent web domain in your web browser (e.g. gmail.coms instead of gmail.com), you are redirected to an OpenDNS search page and not the default “Address Not Found” error in your browser. This fix will change the defaul OpenDNS setting.
Since 404 errors – that say Page Not Found – are like Greek to most people, Google is taking a more user friendly approach and they now try to guess the page you are looking for.