How to Disable RSS Feeds and RSS Feed Links in WordPress?

Simple way to disable RSS Feeds is to add below to functions.php file.

add_action( 'do_feed', 'aioo_crunchify_perf_disable_feed', 1 );
add_action( 'do_feed_rdf', 'aioo_crunchify_perf_disable_feed', 1 );
add_action( 'do_feed_rss', 'aioo_crunchify_perf_disable_feed', 1 );
add_action( 'do_feed_rss2', 'aioo_crunchify_perf_disable_feed', 1 );
add_action( 'do_feed_atom', 'aioo_crunchify_perf_disable_feed', 1 );
add_action( 'do_feed_rss2_comments', 'aioo_crunchify_perf_disable_feed', 1 );
add_action( 'do_feed_atom_comments', 'aioo_crunchify_perf_disable_feed', 1 );

Simple way to disable RSS feed links:

add_action( 'feed_links_show_posts_feed', '__return_false', - 1 );
add_action( 'feed_links_show_comments_feed', '__return_false', - 1 );
remove_action( 'wp_head', 'feed_links', 2 );
remove_action( 'wp_head', 'feed_links_extra', 3 );

Is there any other way to disable RSS Feeds and RSS Feed Links using Plugin?

Yes.

• Download plugin All-in-One Optimizer and Customizer.
• Enable toggle: Disable RSS Feeds.
• Enable toggle: Disable RSS Feed Links

That’s it. And you are all set.