If you are looking for a "piece" of code related to this, it usually falls into two categories: it for security or fixing it if your remote apps aren't connecting. 1. Piece to Disable XML-RPC / RSD (Security)
The URL structure {keyword}/xmlrpc.php?rsd refers to the endpoint of a WordPress site. RSD is a protocol that allows external software—like mobile apps or desktop blogging clients—to "discover" the available APIs (such as XML-RPC) and services supported by your website.
xmlrpc.php in WordPress: What Is It and How To Disable It - Elementor {keyword}/xmlrpc.php?rsd
Many site owners disable this because the xmlrpc.php file is a frequent target for and DDoS pingback attacks .
Adding this snippet to your theme’s functions.php file will turn off the XML-RPC interface. add_filter( 'xmlrpc_enabled', '__return_false' ); Use code with caution. If you are looking for a "piece" of
If you want to completely block access at the server level (returning a 403 Forbidden error), add this to your .htaccess file: order deny,allow deny from all Use code with caution. 3. Piece to Verify Functionality
If you need it to work (e.g., for the Jetpack plugin or the WordPress mobile app) and are seeing errors like "XML-RPC server accepts POST requests only," this is actually a normal response to a GET request in your browser. To verify if it is truly active and reachable, you can use the XML-RPC Validator . RSD is a protocol that allows external software—like
To stop the ?rsd link from appearing in your site's header, use this piece of code: remove_action('wp_head', 'rsd_link'); Use code with caution. 2. Piece to Block Access (via .htaccess)