Root Files
wp-settings.php
PurposeCore bootstrap that initializes WordPress: loads core libraries, sets constants, configures DB/cache, loads plugins and themes, and fires the key...
Updated February 13, 2026
wp-signup.php
PurposeMultisite signup handler for new users and/or new sites, including validation and form rendering.FlowLoads WordPress (wp-load.php) and front-end context (wp-blog-header.php).Ensures...
Updated February 13, 2026
wp-trackback.php
PurposeHandles incoming trackbacks/pingbacks, validates data, and creates trackback comments.FlowLoads WordPress and runs wp( array( 'tb' => '1' ) ) when...
Updated February 13, 2026
xmlrpc.php
PurposeXML-RPC endpoint for remote publishing and legacy APIs (MetaWeblog, Blogger, MovableType, etc.).FlowDefines XMLRPC_REQUEST and clears cookies.Reads raw POST body and...
Updated February 13, 2026