WordPress at a glance
action is not described

after_signup_site action-hook . WP 4.4.0

Fires after site signup information has been written to the database.


add_action( 'after_signup_site', 'action_function_name_4535', 10, 7 );
function action_function_name_4535( $domain, $path, $title, $user, $user_email, $key, $meta ){
	// action...
The requested domain.
The requested path.
The requested site title.
The user's requested login name.
The user's email address.
The user's activation key.
Signup meta data. By default, contains the requested privacy setting and lang_id.


Since 4.4.0 Introduced.

Where the hook is called

wp-includes/ms-functions.php 801
do_action( 'after_signup_site', $domain, $path, $title, $user, $user_email, $key, $meta );

Where the hook is used (in WP core)

wp-includes/ms-default-filters.php 41
add_action( 'after_signup_site', 'wpmu_signup_blog_notification', 10, 7 );