diff -r 7b1b88e27a20 -r 48c4eec2b7e6 wp/wp-admin/network/sites.php
--- a/wp/wp-admin/network/sites.php	Thu Sep 29 08:06:27 2022 +0200
+++ b/wp/wp-admin/network/sites.php	Fri Sep 05 18:40:08 2025 +0200
@@ -28,23 +28,21 @@
 		'id'      => 'overview',
 		'title'   => __( 'Overview' ),
 		'content' =>
-			'<p>' . __( 'Add New takes you to the Add New Site screen. You can search for a site by Name, ID number, or IP address. Screen Options allows you to choose how many sites to display on one page.' ) . '</p>' .
-			'<p>' . __( 'This is the main table of all sites on this network. Switch between list and excerpt views by using the icons above the right side of the table.' ) . '</p>' .
+		'<p>' . __( 'Add New Site takes you to the screen for adding a new site to the network. You can search for a site by Name, ID number, or IP address. Screen Options allows you to choose how many sites to display on one page.' ) . '</p>' .
+		'<p>' . __( 'This is the main table of all sites on this network. Switch between list and excerpt views by using the icons above the right side of the table.' ) . '</p>' .
 			'<p>' . __( 'Hovering over each site reveals seven options (three for the primary site):' ) . '</p>' .
 			'<ul><li>' . __( 'An Edit link to a separate Edit Site screen.' ) . '</li>' .
 			'<li>' . __( 'Dashboard leads to the Dashboard for that site.' ) . '</li>' .
 			'<li>' . __( 'Deactivate, Archive, and Spam which lead to confirmation screens. These actions can be reversed later.' ) . '</li>' .
-			'<li>' . __( 'Delete which is a permanent action after the confirmation screens.' ) . '</li>' .
-			'<li>' . __( 'Visit to go to the front-end site live.' ) . '</li></ul>' .
-			'<p>' . __( 'The site ID is used internally, and is not shown on the front end of the site or to users/viewers.' ) . '</p>' .
-			'<p>' . __( 'Clicking on bold headings can re-sort this table.' ) . '</p>',
+			'<li>' . __( 'Delete which is a permanent action after the confirmation screen.' ) . '</li>' .
+			'<li>' . __( 'Visit to go to the front-end of the live site.' ) . '</li></ul>',
 	)
 );
 
 get_current_screen()->set_help_sidebar(
 	'<p><strong>' . __( 'For more information:' ) . '</strong></p>' .
-	'<p>' . __( '<a href="https://wordpress.org/support/article/network-admin-sites-screen/">Documentation on Site Management</a>' ) . '</p>' .
-	'<p>' . __( '<a href="https://wordpress.org/support/forum/multisite/">Support Forums</a>' ) . '</p>'
+	'<p>' . __( '<a href="https://developer.wordpress.org/advanced-administration/multisite/admin/#network-admin-sites-screen">Documentation on Site Management</a>' ) . '</p>' .
+	'<p>' . __( '<a href="https://wordpress.org/support/forum/multisite/">Support forums</a>' ) . '</p>'
 );
 
 get_current_screen()->set_screen_reader_content(
@@ -102,7 +100,7 @@
 			header( 'Content-Type: text/html; charset=utf-8' );
 		}
 
-		if ( get_network()->site_id == $id ) {
+		if ( is_main_site( $id ) ) {
 			wp_die( __( 'Sorry, you are not allowed to change the current site.' ) );
 		}
 
@@ -118,8 +116,20 @@
 					<input type="hidden" name="id" value="<?php echo esc_attr( $id ); ?>" />
 					<input type="hidden" name="_wp_http_referer" value="<?php echo esc_attr( wp_get_referer() ); ?>" />
 					<?php wp_nonce_field( $site_action . '_' . $id, '_wpnonce', false ); ?>
-					<p><?php printf( $manage_actions[ $site_action ], $site_address ); ?></p>
-					<?php submit_button( __( 'Confirm' ), 'primary' ); ?>
+					<?php
+					if ( 'deleteblog' === $site_action ) {
+						$submit = __( 'Delete this site permanently' );
+						?>
+						<div class="notice notice-warning inline">
+							<p><?php _e( 'Deleting a site is a permanent action that cannot be undone. This will delete the entire site and its uploads directory.' ); ?>
+						</div>
+						<?php
+					} else {
+						$submit = __( 'Confirm' );
+					}
+					?>
+					<p><?php printf( $manage_actions[ $site_action ], "<strong>{$site_address}</strong>" ); ?></p>
+					<?php submit_button( $submit, 'primary' ); ?>
 				</form>
 			</div>
 		<?php
@@ -142,7 +152,7 @@
 			}
 
 			$updated_action = 'not_deleted';
-			if ( '0' != $id && get_network()->site_id != $id && current_user_can( 'delete_site', $id ) ) {
+			if ( 0 !== $id && ! is_main_site( $id ) && current_user_can( 'delete_site', $id ) ) {
 				wpmu_delete_blog( $id, true );
 				$updated_action = 'delete';
 			}
@@ -154,7 +164,7 @@
 			foreach ( (array) $_POST['site_ids'] as $site_id ) {
 				$site_id = (int) $site_id;
 
-				if ( get_network()->site_id == $site_id ) {
+				if ( is_main_site( $site_id ) ) {
 					continue;
 				}
 
@@ -181,8 +191,10 @@
 			if ( isset( $_POST['action'] ) && isset( $_POST['allblogs'] ) ) {
 				$doaction = $_POST['action'];
 
-				foreach ( (array) $_POST['allblogs'] as $key => $val ) {
-					if ( '0' != $val && get_network()->site_id != $val ) {
+				foreach ( (array) $_POST['allblogs'] as $site_id ) {
+					$site_id = (int) $site_id;
+
+					if ( 0 !== $site_id && ! is_main_site( $site_id ) ) {
 						switch ( $doaction ) {
 							case 'delete':
 								require_once ABSPATH . 'wp-admin/admin-header.php';
@@ -197,12 +209,14 @@
 										<ul class="ul-disc">
 											<?php
 											foreach ( $_POST['allblogs'] as $site_id ) :
+												$site_id = (int) $site_id;
+
 												$site         = get_site( $site_id );
 												$site_address = untrailingslashit( $site->domain . $site->path );
 												?>
 												<li>
 													<?php echo $site_address; ?>
-													<input type="hidden" name="site_ids[]" value="<?php echo (int) $site_id; ?>" />
+													<input type="hidden" name="site_ids[]" value="<?php echo esc_attr( $site_id ); ?>" />
 												</li>
 											<?php endforeach; ?>
 										</ul>
@@ -217,7 +231,7 @@
 							case 'spam':
 							case 'notspam':
 								$updated_action = ( 'spam' === $doaction ) ? 'all_spam' : 'all_notspam';
-								update_blog_status( $val, 'spam', ( 'spam' === $doaction ) ? '1' : '0' );
+								update_blog_status( $site_id, 'spam', ( 'spam' === $doaction ) ? '1' : '0' );
 								break;
 						}
 					} else {
@@ -354,7 +368,14 @@
 	}
 
 	if ( ! empty( $msg ) ) {
-		$msg = '<div id="message" class="updated notice is-dismissible"><p>' . $msg . '</p></div>';
+		$msg = wp_get_admin_notice(
+			$msg,
+			array(
+				'type'        => 'success',
+				'dismissible' => true,
+				'id'          => 'message',
+			)
+		);
 	}
 }
 
@@ -367,7 +388,7 @@
 <h1 class="wp-heading-inline"><?php _e( 'Sites' ); ?></h1>
 
 <?php if ( current_user_can( 'create_sites' ) ) : ?>
-	<a href="<?php echo esc_url( network_admin_url( 'site-new.php' ) ); ?>" class="page-title-action"><?php echo esc_html_x( 'Add New', 'site' ); ?></a>
+	<a href="<?php echo esc_url( network_admin_url( 'site-new.php' ) ); ?>" class="page-title-action"><?php echo esc_html__( 'Add New Site' ); ?></a>
 <?php endif; ?>
 
 <?php