. */ if ( ! function_exists( 'add_filter' ) ) { header( 'Status: 403 Forbidden' ); header( 'HTTP/1.1 403 Forbidden' ); exit(); } if ( ! defined( 'WPSEO_FILE' ) ) { define( 'WPSEO_FILE', __FILE__ ); } // Load the Yoast SEO plugin. require_once( dirname( WPSEO_FILE ) . '/wp-seo-main.php' );