get_option('url'); if (empty($url)) return; $minify_preloader = WP_Optimize_Minify_Preloader::instance(); // load pages with different user-agents values. $minify_preloader->preload_desktop($url); $minify_preloader->preload_amp($url); if (defined('WP_CLI') && WP_CLI) { WP_CLI::log($url); } /** * Action triggered after preloading a single url * * @param string $url The url to preload * @param object $minify_preloader Minify preloader instance */ do_action('wpoptimize_after_minify_preload_url', $url, $minify_preloader); /** * Allows to change the delay between each URL preload, to reduce server load. * * @param integer $preload_delay The delay between each request in microseconds (1000000 = 1 second). */ usleep(apply_filters('wpoptimize_minify_preload_delay', 500000)); return true; } }