diff --git a/LICENSE_INTEGRATION.md b/LICENSE_INTEGRATION.md
index 06240a5..3dd51b1 100644
--- a/LICENSE_INTEGRATION.md
+++ b/LICENSE_INTEGRATION.md
@@ -1,85 +1,49 @@
-# Nieuwe License Validator en Updater
+# SitiWebUpdater2 - Globale Plugin Updater
 
-Deze plugin gebruikt nu een eigen licentie- en updatesysteem via plugins.robert.ooo in plaats van GitHub.
+Deze class gebruikt een globale registry zodat alle plugins die deze updater gebruiken hun licenties op één centrale pagina beheren.
 
 ## Gebruik
 
-### License Validator
+### Basis setup (per plugin)
 
 ```php
-require_once __DIR__ . '/includes/SitiLicenseValidator.php';
+require_once 'path/to/SitiWebUpdater2.php';
 
-// Initialiseer validator
-$validator = new SitiLicenseValidator();
-
-// Stel licentie in (van settings)
-$validator->set_license_key( get_option( 'siti_license_key' ) );
-
-// Verificeer
-$result = $validator->verify();
-if ( is_wp_error( $result ) ) {
-    // Toon fout
-    echo $result->get_error_message();
-} else {
-    // Licentie geldig
-    $version = $result['license']['pluginVersion'];
-}
-```
-
-### SitiWebUpdater2
-
-```php
-require_once __DIR__ . '/includes/SitiWebUpdater2.php';
-
-// Initialiseer updater
 $updater = new SitiWebUpdater2( __FILE__ );
-
-// Stel owner/repo in (bijv. van manifest.json)
-$updater->set_owner( 'siti-ai-product-content-generator' );
-$updater->set_repository( 'siti-ai-product-content-generator' );
-
-// Stel licentie in voor downloads
-$updater->set_license_key( get_option( 'siti_license_key' ) );
-
-// API URL (optioneel, default is plugins.robert.ooo)
-$updater->set_api_base_url( 'https://plugins.robert.ooo' );
+$updater->set_owner( 'jouw-github-username' );
+$updater->set_repository( 'jouw-plugin-repo' );
+$updater->initialize();
 ```
 
-## Instellingen
+### Automatische features
 
-Voeg in je admin settings pagina velden toe voor:
+De updater doet alles automatisch:
 
-- Licentiecode
-- API URL (optioneel)
+1. **Globale license pagina**: Voegt één instellingen pagina toe onder Instellingen > Plugin Licenties
+2. **Admin notices**: Toont rood bericht per plugin als licentie ongeldig is
+3. **Dagelijkse checks**: Controleert dagelijks alle licenties
+4. **Auto-updates**: Controleert op updates voor alle plugins
 
-Sla op in wp_options:
+### Centrale licentie pagina
 
-```php
-update_option( 'siti_license_key', sanitize_text_field( $_POST['license_key'] ) );
-update_option( 'siti_api_url', esc_url_raw( $_POST['api_url'] ) ?: 'https://plugins.robert.ooo' );
-```
+Alle plugins die SitiWebUpdater2 gebruiken verschijnen automatisch op de centrale pagina `Instellingen > Plugin Licenties`, waar je alle licentiecodes in één keer kunt beheren.
 
-## Cron Job voor Licentie Checks
+## Configuratie
 
-```php
-add_action( 'siti_daily_license_check', function() {
-    $validator = new SitiLicenseValidator();
-    $result = $validator->verify();
-    // Log of handel af
-} );
+- **Owner/Repo**: Stel in via `set_owner()` en `set_repository()`
+- **API URL**: Standaard `https://plugins.robert.ooo`, aanpasbaar met `set_api_base_url()`
+- **License key**: Wordt opgeslagen in eigen option key per plugin
 
-if ( ! wp_next_scheduled( 'siti_daily_license_check' ) ) {
-    wp_schedule_event( time(), 'daily', 'siti_daily_license_check' );
-}
-```
+## Option Keys (per plugin)
 
-## Admin Notices
+- `siti_updater_{plugin_slug}_license_key`: De licentiecode
+- `siti_updater_{plugin_slug}_license_data`: Gecachte licentie data
+- `siti_updater_{plugin_slug}_last_check`: Timestamp laatste check
 
-```php
-add_action( 'admin_notices', function() {
-    $validator = new SitiLicenseValidator();
-    if ( ! $validator->is_valid() ) {
-        echo '<div class="notice notice-error"><p>Licentie ongeldig. Controleer je instellingen.</p></div>';
-    }
-} );
-```
\ No newline at end of file
+## Cron Jobs (per plugin)
+
+- `siti_updater_daily_check_siti_updater_{plugin_slug}_`: Dagelijkse licentie verificatie
+
+## Herbruikbaarheid
+
+Deze class is volledig herbruikbaar in meerdere plugins. Elke plugin registreert zichzelf automatisch in de globale registry en verschijnt op de centrale licentie pagina.
\ No newline at end of file
diff --git a/includes/SitiLicenseValidator.php b/includes/SitiLicenseValidator.php
index 141c186..618f57d 100644
--- a/includes/SitiLicenseValidator.php
+++ b/includes/SitiLicenseValidator.php
@@ -10,10 +10,12 @@ class SitiLicenseValidator {
     private $api_base_url = 'https://plugins.robert.ooo';
     private $license_key;
     private $hostname;
+    private $plugin_version;
 
-    public function __construct( $license_key = null, $hostname = null ) {
+    public function __construct( $license_key = null, $hostname = null, $plugin_version = null ) {
         $this->license_key = $license_key ?: get_option( 'siti_license_key' );
         $this->hostname = $hostname ?: parse_url( home_url(), PHP_URL_HOST );
+        $this->plugin_version = $plugin_version;
     }
 
     /**
@@ -37,6 +39,13 @@ class SitiLicenseValidator {
         $this->hostname = $hostname;
     }
 
+    /**
+     * Set the plugin version for reporting purposes
+     */
+    public function set_plugin_version( $version ) {
+        $this->plugin_version = $version;
+    }
+
     /**
      * Verify the license
      *
@@ -56,8 +65,9 @@ class SitiLicenseValidator {
                 'Content-Type' => 'application/json',
             ),
             'body' => wp_json_encode( array(
-                'key'      => $this->license_key,
-                'hostname' => $this->hostname,
+                'key'            => $this->license_key,
+                'hostname'       => $this->hostname,
+                'currentVersion' => $this->plugin_version,
             ) ),
             'timeout' => 15,
         ) );
@@ -127,4 +137,4 @@ class SitiLicenseValidator {
         // In practice, you might want to proxy this through WordPress
         return $this->api_base_url . '/api/licenses/download?key=' . urlencode( $this->license_key ) . '&hostname=' . urlencode( $this->hostname ) . '&version=' . urlencode( $version );
     }
-}
\ No newline at end of file
+}
diff --git a/includes/SitiWebUpdater2.php b/includes/SitiWebUpdater2.php
index f12bad5..7bd679a 100644
--- a/includes/SitiWebUpdater2.php
+++ b/includes/SitiWebUpdater2.php
@@ -8,6 +8,9 @@
  */
 class SitiWebUpdater2 {
 
+    private static $instances = array();
+    private static $global_settings_registered = false;
+
     private $file;
     private $plugin;
     private $basename;
@@ -24,6 +27,9 @@ class SitiWebUpdater2 {
         $this->option_prefix = 'siti_updater_' . sanitize_key( dirname( plugin_basename( $this->file ) ) ) . '_';
         $this->set_plugin_properties();
 
+        // Register this instance globally
+        self::$instances[ $this->option_prefix ] = $this;
+
         add_action( 'admin_init', array( $this, 'set_plugin_properties' ) );
         add_action( 'admin_notices', array( $this, 'admin_notices' ) );
         add_action( 'siti_updater_daily_check_' . $this->option_prefix, array( $this, 'daily_license_check' ) );
@@ -38,7 +44,12 @@ class SitiWebUpdater2 {
     public function initialize() {
         add_filter( 'pre_set_site_transient_update_plugins', array( $this, 'check_for_updates' ) );
         add_filter( 'plugins_api', array( $this, 'plugin_info' ), 10, 3 );
-        add_action( 'admin_menu', array( $this, 'add_settings_page' ) );
+
+        // Register global settings page only once
+        if ( ! self::$global_settings_registered ) {
+            add_action( 'admin_menu', array( $this, 'add_global_settings_page' ) );
+            self::$global_settings_registered = true;
+        }
     }
 
     public function set_plugin_properties() {
@@ -51,6 +62,14 @@ class SitiWebUpdater2 {
         $this->active = is_plugin_active( $this->basename );
     }
 
+    public static function get_instances() {
+        return self::$instances;
+    }
+
+    public function get_plugin_data() {
+        return $this->plugin;
+    }
+
     public function set_owner( $owner ) {
         $this->owner = $owner;
     }
@@ -60,8 +79,15 @@ class SitiWebUpdater2 {
     }
 
     public function set_license_key( $key ) {
-        $this->license_key = $key;
-        update_option( $this->option_prefix . 'license_key', $key );
+        $sanitized_key = sanitize_text_field( (string) $key );
+        $stored_key    = get_option( $this->option_prefix . 'license_key', '' );
+
+        if ( $stored_key !== $sanitized_key ) {
+            $this->clear_cached_license_data();
+        }
+
+        $this->license_key = $sanitized_key;
+        update_option( $this->option_prefix . 'license_key', $sanitized_key );
     }
 
     public function get_license_key() {
@@ -71,10 +97,57 @@ class SitiWebUpdater2 {
         return $this->license_key;
     }
 
+    public function get_license_data() {
+        return $this->get_stored_license_data();
+    }
+
     public function set_api_base_url( $api_base_url ) {
         $this->api_base_url = rtrim( (string) $api_base_url, '/' );
     }
 
+    private function get_stored_license_data() {
+        $data = get_option( $this->option_prefix . 'license_data', array() );
+
+        return is_array( $data ) ? $data : array();
+    }
+
+    private function clear_cached_license_data() {
+        delete_option( $this->option_prefix . 'license_data' );
+        delete_option( $this->option_prefix . 'last_check' );
+    }
+
+    private function store_license_data( $body ) {
+        if ( ! is_array( $body ) ) {
+            $body = array();
+        }
+
+        $license_data = array();
+
+        if ( isset( $body['license'] ) && is_array( $body['license'] ) ) {
+            $license_data = $body['license'];
+        }
+
+        if ( empty( $license_data['key'] ) ) {
+            $license_data['key'] = $this->get_license_key();
+        }
+
+        $version = null;
+        if ( isset( $body['pluginVersion'] ) && $body['pluginVersion'] ) {
+            $version = $body['pluginVersion'];
+        } elseif ( isset( $body['version'] ) && $body['version'] ) {
+            $version = $body['version'];
+        } elseif ( isset( $license_data['pluginVersion'] ) && $license_data['pluginVersion'] ) {
+            $version = $license_data['pluginVersion'];
+        }
+
+        if ( $version ) {
+            $license_data['pluginVersion'] = $version;
+        }
+
+        update_option( $this->option_prefix . 'license_data', $license_data );
+        update_option( $this->option_prefix . 'last_check', current_time( 'mysql' ) );
+    }
+
     private function get_plugin_info() {
         if ( is_null( $this->plugin_response ) ) {
             $request_uri = sprintf( '%s/api/plugins/%s/%s', $this->api_base_url, $this->owner, $this->repository );
@@ -175,13 +248,15 @@ class SitiWebUpdater2 {
         }
 
         $hostname = parse_url( home_url(), PHP_URL_HOST );
+        $current_version = isset( $this->plugin['Version'] ) ? $this->plugin['Version'] : null;
         $response = wp_remote_post( $this->api_base_url . '/api/licenses/verify', array(
             'headers' => array(
                 'Content-Type' => 'application/json',
             ),
             'body' => wp_json_encode( array(
-                'key'      => $license_key,
-                'hostname' => $hostname,
+                'key'             => $license_key,
+                'hostname'        => $hostname,
+                'currentVersion'  => $current_version,
             ) ),
             'timeout' => 15,
         ) );
@@ -193,25 +268,45 @@ class SitiWebUpdater2 {
         $code = wp_remote_retrieve_response_code( $response );
         $body = json_decode( wp_remote_retrieve_body( $response ), true );
 
+        if ( ! is_array( $body ) ) {
+            $this->clear_cached_license_data();
+            return new WP_Error( 'verification_failed', 'Onverwacht antwoord van licentieserver.' );
+        }
+
         if ( 200 !== $code ) {
             $error_message = isset( $body['error'] ) ? $body['error'] : 'Licentie verificatie mislukt.';
+            $this->clear_cached_license_data();
             return new WP_Error( 'verification_failed', $error_message );
         }
 
         if ( empty( $body['valid'] ) ) {
+            $this->clear_cached_license_data();
             return new WP_Error( 'invalid_license', 'Licentie is ongeldig.' );
         }
 
-        // Store license data
-        update_option( $this->option_prefix . 'license_data', $body['license'] );
-        update_option( $this->option_prefix . 'last_check', current_time( 'mysql' ) );
+        $this->store_license_data( $body );
 
         return $body;
     }
 
     public function is_license_valid() {
-        $data = get_option( $this->option_prefix . 'license_data', array() );
-        return ! empty( $data ) && isset( $data['key'] );
+        $data = $this->get_license_data();
+        return ! empty( $data ) && ! empty( $data['key'] );
+    }
+
+    public function get_latest_known_version() {
+        $this->get_plugin_info();
+
+        if ( ! empty( $this->plugin_response['version'] ) ) {
+            return $this->plugin_response['version'];
+        }
+
+        $license_data = $this->get_license_data();
+        if ( isset( $license_data['pluginVersion'] ) && $license_data['pluginVersion'] ) {
+            return $license_data['pluginVersion'];
+        }
+
+        return null;
     }
 
     public function admin_notices() {
@@ -220,12 +315,12 @@ class SitiWebUpdater2 {
         }
 
         if ( ! $this->is_license_valid() ) {
-            $settings_url = admin_url( 'options-general.php?page=siti-updater-' . sanitize_title( $this->plugin['Name'] ) );
+            $settings_url = admin_url( 'options-general.php?page=siti-plugin-licenses' );
             echo '<div class="notice notice-error"><p>';
             printf(
                 esc_html__( '%s: Licentie ongeldig of niet ingesteld. Ga naar %s om je licentie in te voeren.', 'siti-updater' ),
                 esc_html( $this->plugin['Name'] ),
-                '<a href="' . esc_url( $settings_url ) . '">' . esc_html__( 'instellingen', 'siti-updater' ) . '</a>'
+                '<a href="' . esc_url( $settings_url ) . '">' . esc_html__( 'plugin licenties', 'siti-updater' ) . '</a>'
             );
             echo '</p></div>';
         }
@@ -238,56 +333,107 @@ class SitiWebUpdater2 {
         }
     }
 
-    public function add_settings_page() {
+    public function add_global_settings_page() {
         add_options_page(
-            sprintf( __( '%s Licentie', 'siti-updater' ), $this->plugin['Name'] ),
-            sprintf( __( '%s Licentie', 'siti-updater' ), $this->plugin['Name'] ),
+            __( 'Plugin Licenties', 'siti-updater' ),
+            __( 'Plugin Licenties', 'siti-updater' ),
             'manage_options',
-            'siti-updater-' . sanitize_title( $this->plugin['Name'] ),
-            array( $this, 'render_settings_page' )
+            'siti-plugin-licenses',
+            array( $this, 'render_global_settings_page' )
         );
     }
 
-    public function render_settings_page() {
+    public function render_global_settings_page() {
         if ( ! current_user_can( 'manage_options' ) ) {
             return;
         }
 
-        if ( isset( $_POST['siti_updater_license_key'] ) && wp_verify_nonce( $_POST['_wpnonce'], 'siti_updater_save' ) ) {
-            $this->set_license_key( sanitize_text_field( $_POST['siti_updater_license_key'] ) );
-            $result = $this->verify_license();
-            if ( is_wp_error( $result ) ) {
-                add_settings_error( 'siti_updater', 'license_error', $result->get_error_message() );
-            } else {
-                add_settings_error( 'siti_updater', 'license_success', __( 'Licentie succesvol opgeslagen en geverifieerd.', 'siti-updater' ), 'updated' );
+        if ( isset( $_POST['siti_updater_save'] ) && wp_verify_nonce( $_POST['_wpnonce'], 'siti_updater_save' ) ) {
+            foreach ( self::$instances as $prefix => $instance ) {
+                $key = $prefix . 'license_key';
+                if ( isset( $_POST[ $key ] ) ) {
+                    $instance->set_license_key( sanitize_text_field( $_POST[ $key ] ) );
+                    $result = $instance->verify_license();
+                    if ( is_wp_error( $result ) ) {
+                        $plugin_data = $instance->get_plugin_data();
+                        add_settings_error( 'siti_updater', 'license_error_' . $prefix, $plugin_data['Name'] . ': ' . $result->get_error_message() );
+                    } else {
+                        $plugin_data = $instance->get_plugin_data();
+                        add_settings_error( 'siti_updater', 'license_success_' . $prefix, $plugin_data['Name'] . ': ' . __( 'Licentie succesvol opgeslagen en geverifieerd.', 'siti-updater' ), 'updated' );
+                    }
+                }
             }
         }
 
         ?>
         <div class="wrap">
-            <h1><?php printf( esc_html__( '%s Licentie Instellingen', 'siti-updater' ), $this->plugin['Name'] ); ?></h1>
+            <h1><?php esc_html_e( 'Plugin Licenties', 'siti-updater' ); ?></h1>
             <p class="description">
-                <?php printf( esc_html__( 'Voer je licentiecode in voor %s om updates te ontvangen.', 'siti-updater' ), $this->plugin['Name'] ); ?>
+                <?php esc_html_e( 'Beheer licentiecodes voor al je plugins die het Siti update systeem gebruiken.', 'siti-updater' ); ?>
             </p>
 
             <?php settings_errors( 'siti_updater' ); ?>
 
             <form method="post" action="">
                 <?php wp_nonce_field( 'siti_updater_save' ); ?>
-                <table class="form-table">
-                    <tr>
-                        <th scope="row"><?php esc_html_e( 'Licentiecode', 'siti-updater' ); ?></th>
-                        <td>
-                            <input type="text" name="siti_updater_license_key" value="<?php echo esc_attr( $this->get_license_key() ); ?>" class="regular-text" />
-                            <p class="description"><?php esc_html_e( 'Verkrijg je licentiecode van plugins.robert.ooo', 'siti-updater' ); ?></p>
-                        </td>
-                    </tr>
+                <table class="wp-list-table widefat fixed striped">
+                    <thead>
+                        <tr>
+                            <th><?php esc_html_e( 'Plugin', 'siti-updater' ); ?></th>
+                            <th><?php esc_html_e( 'Licentiecode', 'siti-updater' ); ?></th>
+                            <th><?php esc_html_e( 'Geldig', 'siti-updater' ); ?></th>
+                            <th><?php esc_html_e( 'Huidige versie', 'siti-updater' ); ?></th>
+                            <th><?php esc_html_e( 'Nieuwste versie', 'siti-updater' ); ?></th>
+                        </tr>
+                    </thead>
+                    <tbody>
+                        <?php foreach ( self::$instances as $prefix => $instance ) :
+                            $license_data   = $instance->get_license_data();
+                            $is_valid       = $instance->is_license_valid();
+                            $plugin_data    = $instance->get_plugin_data();
+                            $current_version = $plugin_data['Version'];
+                            $latest_known    = $instance->get_latest_known_version();
+                            $latest_version  = $latest_known ? $latest_known : ( isset( $license_data['pluginVersion'] ) ? $license_data['pluginVersion'] : '-' );
+                        ?>
+                            <tr>
+                                <td>
+                                    <strong><?php echo esc_html( $plugin_data['Name'] ); ?></strong>
+                                    <br>
+                                    <small><?php echo esc_html( $plugin_data['Description'] ); ?></small>
+                                </td>
+                                <td>
+                                    <input type="text" 
+                                           name="<?php echo esc_attr( $prefix . 'license_key' ); ?>" 
+                                           value="<?php echo esc_attr( $instance->get_license_key() ); ?>" 
+                                           class="regular-text" 
+                                           placeholder="<?php esc_attr_e( 'Voer licentiecode in...', 'siti-updater' ); ?>" />
+                                    <p class="description">
+                                        <?php printf( esc_html__( 'Licentie voor %s. Verkrijg je code van plugins.robert.ooo', 'siti-updater' ), $plugin_data['Name'] ); ?>
+                                    </p>
+                                </td>
+                                <td>
+                                    <span class="license-status <?php echo $is_valid ? 'valid' : 'invalid'; ?>">
+                                        <?php echo $is_valid ? '<span style="color: green;">✓ ' . esc_html__( 'Ja', 'siti-updater' ) . '</span>' : '<span style="color: red;">✗ ' . esc_html__( 'Nee', 'siti-updater' ) . '</span>'; ?>
+                                    </span>
+                                </td>
+                                <td>
+                                    <?php echo esc_html( $current_version ); ?>
+                                </td>
+                                <td>
+                                    <?php echo esc_html( $latest_version ); ?>
+                                    <?php if ( $latest_version && '-' !== $latest_version && version_compare( $latest_version, $current_version, '>' ) ) : ?>
+                                        <br><small style="color: orange;"><?php esc_html_e( 'Update beschikbaar!', 'siti-updater' ); ?></small>
+                                    <?php endif; ?>
+                                </td>
+                            </tr>
+                        <?php endforeach; ?>
+                    </tbody>
                 </table>
                 <p class="submit">
-                    <input type="submit" name="submit" class="button button-primary" value="<?php esc_attr_e( 'Licentie opslaan', 'siti-updater' ); ?>" />
+                    <input type="submit" name="siti_updater_save" class="button button-primary" value="<?php esc_attr_e( 'Licenties opslaan', 'siti-updater' ); ?>" />
                 </p>
             </form>
         </div>
         <?php
     }
-}
\ No newline at end of file
+}