I thought I would share a solution I just implemented. If you are using a Godaddy custom error page it might up as 200 instead as 404 in the header. This is especially true if you use 404.html as they suggest. Solution? Create a page 404.php with below snippet. Problem solved!
Code:<?php header("HTTP/1.0 404 Not Found"); ?> <html> <head> <meta name="robots" content="noindex, nofollow"> <TITLE>Page Not Found</TITLE> </head> bla bla