Is this for all 404 pages? If you have a custom 404 page does Google still take over? I certainly don't mind Google removing the plain old 404 default pages (or

Is this for all 404 pages? If you have a custom 404 page does Google still take over? I certainly don't mind Google removing the plain old 404 default pages (or even better the pages with got 404 trying to locate the 404 page).