Here's some code snippets you can add to your functions.php file to increase security, remove footprints and increase page speed. There are plugins that do this stuff, but imo it's easier to avoid plugins and stick to code.
These four are the most important ones imo, but there's plenty more you can do. Source for the code: https://tobiesen.com/wordpress/
PHP:
//remove emojis
remove_action( 'wp_head', 'print_emoji_detection_script', 7 );
remove_action( 'wp_print_styles', 'print_emoji_styles' );
PHP:
//remove login errors
add_filter('login_errors',create_function('$a', "return null;"));
PHP:
//remove junk code from the head
remove_action('wp_head', 'wp_generator');
remove_action('wp_head', 'wlwmanifest_link');
remove_action('wp_head', 'rsd_link');
remove_action('wp_head', 'wp_generator');
remove_action('wp_head', 'start_post_rel_link');
remove_action('wp_head', 'index_rel_link');
remove_action('wp_head', 'feed_links_extra', 3 );
remove_action('wp_head', 'feed_links', 2 );
remove_action('wp_head', 'parent_post_rel_link', 10, 0 );
remove_action('wp_head', 'start_post_rel_link', 10, 0 );
remove_action('wp_head', 'adjacent_posts_rel_link_wp_head', 10, 0);
Code:
//Remove query string from static resources, page speed
//Remove query string from static resources
function _remove_script_version( $src ){
if ( strpos( $src, 'ver=' ) )
$src = remove_query_arg( 'ver', $src );
return $src;
}
add_filter( 'script_loader_src', '_remove_script_version', 15, 1 );
add_filter( 'style_loader_src', '_remove_script_version', 15, 1 );These four are the most important ones imo, but there's plenty more you can do. Source for the code: https://tobiesen.com/wordpress/
