WordPress adds a lot of stuff through wp_head() hook included in most WordPress themes. Some of this stuff is useful, but some other isn’t. Here’s a quick recipe to clean up the wp_head() easily without using a plugin.
Paste the following lines of code into your functions.php file:
remove_action( 'wp_head', 'rsd_link' ); remove_action( 'wp_head', 'wlwmanifest_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', 'adjacent_posts_rel_link' ); remove_action( 'wp_head', 'wp_shortlink_wp_head' );
Thanks to Noumaan Yaqoob for the code!