How to remove some external js files from source?
You can use wp_dequeue_script to achieve this assuming they are using wp_enqueue_script to add the scripts in the first place. Learn more about enquene and dequeue: https://developer.wordpress.org/reference/functions/wp_enqueue_script/ https://codex.wordpress.org/Function_Reference/wp_dequeue_script function dequeue_script() { wp_dequeue_script( ‘http://buhehe.de/wp-content/themes/heatt/js/small-menu.js?ver=4.9.1’ ); wp_dequeue_script( ‘http://buhehe.de/wp-includes/js/wp-embed.min.js?ver=4.9.1’ ); } add_action( ‘wp_print_scripts’, ‘dequeue_script’, 100 );