Serve Media Library Files From a Different Domain or CDN
Points uploaded media at a separate host (like a CDN or assets subdomain) instead of your main site URL. Two approaches shown — a direct option update, and a filter-based version that avoids writing to the database.
/**
* Change Media Gallery URL
*/
if ( empty( get_option( 'upload_url_path' ) ) ) {
update_option( 'upload_url_path', 'http://assets.website.com/wp-content/uploads' );
}A cleaner alternative — filters the value on the fly instead of saving it to the options table:
/**
* Change Media Gallery URL
*/
add_filter( 'pre_option_upload_url_path', function() {
return 'http://assets.website.com/wp-content/uploads';
});
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