Static 404

Quickly output a 404 for static files that aren't found, rather than loading the normal 404 page. Any static files ( images, text, pdfs, etc ) that don't exist will 404 as soon as possible, rather than loading the entire WordPress application. Details By default, the list of extensions to check are the results of wp_get_ext_types, but can be filtered with static_404_extensions. The output is a static page with the text 404 Not Found, this text can be edited by filtering static_404_message.