diff --git a/changelog.txt b/changelog.txt
index bb2f71c..701c3f2 100644
--- a/changelog.txt
+++ b/changelog.txt
@@ -1,5 +1,33 @@
 == Changelog ==
 
+= 1.3.0 =
+
+_Release date: 2026-05-05_
+
+**Added**
+
+* Per-provider scan tracking table (`mra_provider_status`) with composite primary key `(attachment_id, provider)`. Each API provider now has an independent row tracking its scan status, so adding a new provider only queues the missing scans rather than resetting everything.
+* "Sync providers" operation in the Tools page: inserts rows for any provider that has no existing entry for a given attachment, then schedules a background scan batch for the new work only.
+
+**Changed**
+
+* `mra_external_results.provider` column changed from `ENUM('google_vision','tineye')` to `varchar(100)` to allow third-party providers registered via the `mra/external/providers` filter to store results.
+* External scan batch processing now reads from `mra_provider_status` and processes each provider independently. Aggregate `external_status` on `mra_media_index` is recomputed after each scan and used only for display.
+* `ExternalScanner::get_pending_count()` counts queued rows from `mra_provider_status`.
+* DB schema version bumped to `1.1.0`. Migration runs automatically on admin_init when updating from an older version; existing data is backfilled into `mra_provider_status`.
+
+**Compatibility**
+
+* WordPress: 6.8 - 7.0
+* PHP: 8.2 - 8.4
+* WP-CLI: 2.x
+
+**Tests**
+
+* PHP Coding Standards: WPCS 3.x / PHPCS 3.x
+* PHPStan: level 9
+* PHPCompatibility: PHP 8.2 - 8.4
+
 = 1.2.0 =
 
 _Release date: 2026-05-02_
diff --git a/includes/Admin/ToolsPage.php b/includes/Admin/ToolsPage.php
index a3e00d8..8ab7765 100644
--- a/includes/Admin/ToolsPage.php
+++ b/includes/Admin/ToolsPage.php
@@ -203,6 +203,10 @@ class ToolsPage {
 				$count = ExternalScanner::requeue_errors();
 				break;
 
+			case 'sync_providers':
+				$count = ExternalScanner::sync_providers();
+				break;
+
 			case 'rescan_usage':
 				$count = UsageScanner::reset_all();
 				UsageScanner::schedule();
@@ -358,6 +362,7 @@ class ToolsPage {
 			'schedule_internal' => __( 'Internal scan scheduled.', 'robotstxt-mediaaudit' ),
 			'schedule_external' => __( 'External scan scheduled.', 'robotstxt-mediaaudit' ),
 			'requeue_errors'    => __( 'Failed scans re-queued. Background scan scheduled.', 'robotstxt-mediaaudit' ),
+			'sync_providers'    => __( 'Provider registry synced. New scans scheduled.', 'robotstxt-mediaaudit' ),
 			'rescan_usage'      => __( 'Usage data cleared. Background scan scheduled.', 'robotstxt-mediaaudit' ),
 			'reindex_all'       => __( 'Index cleared. Fresh indexing scheduled.', 'robotstxt-mediaaudit' ),
 			'purge_external'    => __( 'External scan data purged.', 'robotstxt-mediaaudit' ),
@@ -632,6 +637,13 @@ class ToolsPage {
 				'class'   => 'button',
 				'confirm' => '',
 			),
+			array(
+				'op'      => 'sync_providers',
+				'label'   => __( 'Sync provider registry', 'robotstxt-mediaaudit' ),
+				'desc'    => __( 'Creates scan entries for any newly registered external providers. Run this after adding a new provider via the mra/external/providers filter. Already-scanned attachments are not affected.', 'robotstxt-mediaaudit' ),
+				'class'   => 'button',
+				'confirm' => '',
+			),
 		);
 
 		$destructive = array(
diff --git a/includes/Core/Database.php b/includes/Core/Database.php
index 7f74413..337450a 100644
--- a/includes/Core/Database.php
+++ b/includes/Core/Database.php
@@ -23,6 +23,7 @@ class Database {
 	public static function create_tables(): void {
 		self::migration_100();
 		self::migration_101();
+		self::migration_110();
 	}
 
 	/**
@@ -43,6 +44,10 @@ class Database {
 		if ( version_compare( $current, '1.0.1', '<' ) ) {
 			self::migration_101();
 		}
+
+		if ( version_compare( $current, '1.1.0', '<' ) ) {
+			self::migration_110();
+		}
 	}
 
 	/**
@@ -52,6 +57,7 @@ class Database {
 	 */
 	public static function drop_tables(): void {
 		global $wpdb;
+		$wpdb->query( "DROP TABLE IF EXISTS `{$wpdb->prefix}mra_provider_status`" );  // phpcs:ignore WordPress.DB.DirectDatabaseQuery
 		$wpdb->query( "DROP TABLE IF EXISTS `{$wpdb->prefix}mra_external_results`" ); // phpcs:ignore WordPress.DB.DirectDatabaseQuery
 		$wpdb->query( "DROP TABLE IF EXISTS `{$wpdb->prefix}mra_media_usage`" );      // phpcs:ignore WordPress.DB.DirectDatabaseQuery
 		$wpdb->query( "DROP TABLE IF EXISTS `{$wpdb->prefix}mra_media_index`" );      // phpcs:ignore WordPress.DB.DirectDatabaseQuery
@@ -68,6 +74,7 @@ class Database {
 		global $wpdb;
 
 		// phpcs:disable WordPress.DB.DirectDatabaseQuery
+		$wpdb->query( "TRUNCATE TABLE `{$wpdb->prefix}mra_provider_status`" );
 		$wpdb->query( "TRUNCATE TABLE `{$wpdb->prefix}mra_external_results`" );
 		$wpdb->query( "TRUNCATE TABLE `{$wpdb->prefix}mra_media_usage`" );
 		$wpdb->query( "TRUNCATE TABLE `{$wpdb->prefix}mra_media_index`" );
@@ -125,7 +132,7 @@ class Database {
 			"CREATE TABLE {$wpdb->prefix}mra_external_results (
   result_id bigint(20) unsigned NOT NULL auto_increment,
   attachment_id bigint(20) unsigned NOT NULL,
-  provider enum('google_vision','tineye') NOT NULL,
+  provider varchar(100) NOT NULL,
   raw_response json DEFAULT NULL,
   match_count int(10) unsigned NOT NULL DEFAULT 0,
   top_domains json DEFAULT NULL,
@@ -155,4 +162,57 @@ class Database {
 		);
 		// phpcs:enable WordPress.DB.DirectDatabaseQuery,WordPress.DB.DirectDatabaseQuery.SchemaChange
 	}
+
+	/**
+	 * Migration 1.1.0 — widens provider column and adds mra_provider_status table.
+	 *
+	 * Changes:
+	 * - ALTER mra_external_results.provider from ENUM to varchar(100) for extensibility.
+	 * - CREATE mra_provider_status for per-provider scan tracking.
+	 * - Backfill mra_provider_status from existing mra_external_results data.
+	 *
+	 * Safe to re-run: ALTER TABLE is a no-op if already varchar(100);
+	 * dbDelta skips existing tables; INSERT IGNORE skips duplicate rows.
+	 *
+	 * @return void
+	 */
+	private static function migration_110(): void {
+		global $wpdb;
+
+		$charset_collate = $wpdb->get_charset_collate();
+
+		// phpcs:disable WordPress.DB.DirectDatabaseQuery,WordPress.DB.DirectDatabaseQuery.SchemaChange
+		$wpdb->query(
+			"ALTER TABLE `{$wpdb->prefix}mra_external_results`
+			 MODIFY COLUMN provider varchar(100) NOT NULL"
+		);
+		// phpcs:enable WordPress.DB.DirectDatabaseQuery,WordPress.DB.DirectDatabaseQuery.SchemaChange
+
+		require_once ABSPATH . 'wp-admin/includes/upgrade.php';
+
+		dbDelta(
+			"CREATE TABLE {$wpdb->prefix}mra_provider_status (
+  attachment_id bigint(20) unsigned NOT NULL,
+  provider varchar(100) NOT NULL,
+  status enum('pending','queued','scanned','error') NOT NULL DEFAULT 'pending',
+  scanned_at datetime DEFAULT NULL,
+  PRIMARY KEY  (attachment_id,provider),
+  KEY status (status)
+) {$charset_collate};"
+		);
+
+		// Backfill from existing data. Idempotent: INSERT IGNORE skips duplicates.
+		// phpcs:disable WordPress.DB.DirectDatabaseQuery,WordPress.DB.PreparedSQL.InterpolatedNotPrepared
+		$wpdb->query(
+			"INSERT IGNORE INTO {$wpdb->prefix}mra_provider_status (attachment_id, provider, status, scanned_at)
+			 SELECT er.attachment_id, er.provider,
+			   CASE WHEN mi.external_status = 'error' THEN 'error'
+			        WHEN mi.external_status = 'queued' THEN 'queued'
+			        ELSE 'scanned' END,
+			   mi.external_scanned_at
+			 FROM {$wpdb->prefix}mra_external_results er
+			 JOIN {$wpdb->prefix}mra_media_index mi ON mi.attachment_id = er.attachment_id"
+		);
+		// phpcs:enable WordPress.DB.DirectDatabaseQuery,WordPress.DB.PreparedSQL.InterpolatedNotPrepared
+	}
 }
diff --git a/includes/External/ExternalScanner.php b/includes/External/ExternalScanner.php
index 3d7600c..cce1451 100644
--- a/includes/External/ExternalScanner.php
+++ b/includes/External/ExternalScanner.php
@@ -13,6 +13,9 @@ use MediaRightsAudit\Core\Queue\Scheduler;
  * Processes the external scan queue: runs each pending attachment through
  * all active providers and stores results in mra_external_results.
  *
+ * Per-provider scan state is tracked in mra_provider_status. The aggregate
+ * external_status in mra_media_index is updated after each scan for display.
+ *
  * Active providers are resolved at runtime via the mra/external/providers filter.
  * Scanning is triggered manually by an administrator (Run External Scan bulk action
  * or wp mra scan-external CLI) — never automatically, to control API costs.
@@ -27,11 +30,14 @@ class ExternalScanner {
 	const AS_HOOK = 'mra_external_scan_batch';
 
 	/**
-	 * Scans one batch of pending attachments with all active providers.
+	 * Scans one batch of queued attachments with their pending providers.
 	 *
-	 * @param int $batch_size Maximum number of attachments to process.
+	 * Queries mra_provider_status for queued entries and processes each
+	 * attachment with the intersection of active providers and queued slugs.
 	 *
-	 * @return int Number of attachments attempted.
+	 * @param int $batch_size Maximum number of attachment rows to process.
+	 *
+	 * @return int Number of attachment rows attempted.
 	 */
 	public static function scan_batch( int $batch_size = 10 ): int {
 		global $wpdb;
@@ -41,13 +47,20 @@ class ExternalScanner {
 			return 0;
 		}
 
+		// Index providers by slug for fast intersection lookup.
+		$provider_map = array();
+		foreach ( $providers as $provider ) {
+			$provider_map[ $provider->provider_slug() ] = $provider;
+		}
+
 		// phpcs:disable WordPress.DB.DirectDatabaseQuery,WordPress.DB.PreparedSQL.InterpolatedNotPrepared
 		$rows = $wpdb->get_results(
 			$wpdb->prepare(
-				"SELECT attachment_id, file_url
-				 FROM {$wpdb->prefix}mra_media_index
-				 WHERE external_status = 'queued'
-				 ORDER BY attachment_id ASC
+				"SELECT DISTINCT ps.attachment_id, mi.file_url
+				 FROM {$wpdb->prefix}mra_provider_status ps
+				 JOIN {$wpdb->prefix}mra_media_index mi ON mi.attachment_id = ps.attachment_id
+				 WHERE ps.status = 'queued'
+				 ORDER BY ps.attachment_id ASC
 				 LIMIT %d",
 				$batch_size
 			),
@@ -69,14 +82,41 @@ class ExternalScanner {
 				continue;
 			}
 
-			self::process_attachment( $aid, $url, $providers );
+			// Get queued provider slugs for this attachment.
+			// phpcs:disable WordPress.DB.DirectDatabaseQuery,WordPress.DB.PreparedSQL.InterpolatedNotPrepared
+			$queued_slugs = $wpdb->get_col(
+				$wpdb->prepare(
+					"SELECT provider FROM {$wpdb->prefix}mra_provider_status
+					 WHERE attachment_id = %d AND status = 'queued'",
+					$aid
+				)
+			);
+			// phpcs:enable WordPress.DB.DirectDatabaseQuery,WordPress.DB.PreparedSQL.InterpolatedNotPrepared
+
+			if ( empty( $queued_slugs ) ) {
+				continue;
+			}
+
+			// Intersect queued slugs with currently active providers.
+			$batch_providers = array();
+			foreach ( $queued_slugs as $slug ) {
+				if ( is_string( $slug ) && isset( $provider_map[ $slug ] ) ) {
+					$batch_providers[] = $provider_map[ $slug ];
+				}
+			}
+
+			if ( empty( $batch_providers ) ) {
+				continue;
+			}
+
+			self::process_attachment( $aid, $url, $batch_providers );
 		}
 
 		return count( $rows );
 	}
 
 	/**
-	 * Returns the count of attachments still waiting for external scanning.
+	 * Returns the count of provider-attachment rows still waiting for external scanning.
 	 *
 	 * @return int
 	 */
@@ -84,7 +124,7 @@ class ExternalScanner {
 		global $wpdb;
 
 		$result = $wpdb->get_var( // phpcs:ignore WordPress.DB.DirectDatabaseQuery
-			"SELECT COUNT(*) FROM {$wpdb->prefix}mra_media_index WHERE external_status = 'queued'"
+			"SELECT COUNT(*) FROM {$wpdb->prefix}mra_provider_status WHERE status = 'queued'"
 		);
 
 		return is_numeric( $result ) ? (int) $result : 0;
@@ -106,40 +146,22 @@ class ExternalScanner {
 	}
 
 	/**
-	 * Promotes all attachments with external_status = 'pending' to 'queued'.
+	 * Marks all pending provider rows as queued and schedules a background scan batch.
 	 *
-	 * Does not schedule an Action Scheduler action. Useful in CLI context where
-	 * processing runs synchronously in a loop rather than via background jobs.
-	 *
-	 * @return void
-	 */
-	public static function queue_all_pending(): void {
-		global $wpdb;
-
-		$wpdb->query( // phpcs:ignore WordPress.DB.DirectDatabaseQuery
-			"UPDATE {$wpdb->prefix}mra_media_index
-			 SET external_status = 'queued'
-			 WHERE external_status = 'pending'"
-		);
-	}
-
-	/**
-	 * Marks all pending attachments as queued and schedules a background scan batch.
-	 *
-	 * Moves every attachment with external_status = 'pending' to 'queued' so the
-	 * status change is visible immediately in the admin list. Only schedules the
-	 * Action Scheduler action if there are now queued items and no batch is already running.
+	 * Calls queue_provider_attachments() for each active provider to populate
+	 * mra_provider_status, then syncs the aggregate status on mra_media_index.
+	 * Only schedules the Action Scheduler action if there are queued items and
+	 * no batch is already running.
 	 *
 	 * @return void
 	 */
 	public static function schedule(): void {
-		global $wpdb;
+		$providers = self::get_active_providers();
+		foreach ( $providers as $provider ) {
+			self::queue_provider_attachments( $provider->provider_slug() );
+		}
 
-		$wpdb->query( // phpcs:ignore WordPress.DB.DirectDatabaseQuery
-			"UPDATE {$wpdb->prefix}mra_media_index
-			 SET external_status = 'queued'
-			 WHERE external_status = 'pending'"
-		);
+		self::sync_aggregate_queued_status();
 
 		if ( self::get_pending_count() > 0 && ! Scheduler::has_pending( self::AS_HOOK ) ) {
 			Scheduler::schedule_single( self::AS_HOOK );
@@ -147,10 +169,75 @@ class ExternalScanner {
 	}
 
 	/**
-	 * Marks specific attachments as pending and schedules a scan batch.
+	 * Promotes all pending provider rows to queued for all active providers.
 	 *
-	 * Idempotent: already-pending attachments are left unchanged;
-	 * previously-scanned or error attachments are reset to pending.
+	 * Does not schedule an Action Scheduler action. Useful in CLI context where
+	 * processing runs synchronously in a loop rather than via background jobs.
+	 *
+	 * @return void
+	 */
+	public static function queue_all_pending(): void {
+		$providers = self::get_active_providers();
+		foreach ( $providers as $provider ) {
+			self::queue_provider_attachments( $provider->provider_slug() );
+		}
+
+		self::sync_aggregate_queued_status();
+	}
+
+	/**
+	 * Creates scan entries for newly registered providers.
+	 *
+	 * For each active provider, inserts mra_provider_status rows for attachments
+	 * that have no existing row for that provider. Already-scanned or error rows
+	 * are not touched. If new rows are created, syncs aggregate status and
+	 * schedules a background scan batch.
+	 *
+	 * @return int Total number of new rows inserted.
+	 */
+	public static function sync_providers(): int {
+		global $wpdb;
+
+		$providers = self::get_active_providers();
+		$total     = 0;
+
+		foreach ( $providers as $provider ) {
+			$slug = $provider->provider_slug();
+
+			// phpcs:disable WordPress.DB.DirectDatabaseQuery,WordPress.DB.PreparedSQL.InterpolatedNotPrepared
+			$wpdb->query(
+				$wpdb->prepare(
+					"INSERT IGNORE INTO {$wpdb->prefix}mra_provider_status (attachment_id, provider, status)
+					 SELECT mi.attachment_id, %s, 'queued'
+					 FROM {$wpdb->prefix}mra_media_index mi
+					 LEFT JOIN {$wpdb->prefix}mra_provider_status ps
+					   ON ps.attachment_id = mi.attachment_id AND ps.provider = %s
+					 WHERE ps.attachment_id IS NULL",
+					$slug,
+					$slug
+				)
+			);
+			// phpcs:enable WordPress.DB.DirectDatabaseQuery,WordPress.DB.PreparedSQL.InterpolatedNotPrepared
+
+			$total += (int) $wpdb->rows_affected;
+		}
+
+		if ( $total > 0 ) {
+			self::sync_aggregate_queued_status();
+
+			if ( ! Scheduler::has_pending( self::AS_HOOK ) ) {
+				Scheduler::schedule_single( self::AS_HOOK );
+			}
+		}
+
+		return $total;
+	}
+
+	/**
+	 * Marks specific attachments as queued for all active providers and schedules a scan batch.
+	 *
+	 * Idempotent: already-queued or scanned rows are left unchanged;
+	 * error rows are reset to queued.
 	 *
 	 * @param array<int, int> $attachment_ids Attachment IDs to queue. Must be non-empty.
 	 *
@@ -165,49 +252,58 @@ class ExternalScanner {
 
 		$ids          = array_map( 'intval', $attachment_ids );
 		$placeholders = implode( ',', array_fill( 0, count( $ids ), '%d' ) );
+		$providers    = self::get_active_providers();
 
-		// phpcs:disable WordPress.DB.DirectDatabaseQuery,WordPress.DB.PreparedSQL.InterpolatedNotPrepared,WordPress.DB.PreparedSQLPlaceholders.UnfinishedPrepare
-		$wpdb->query(
-			$wpdb->prepare(
-				"UPDATE {$wpdb->prefix}mra_media_index
-				 SET external_status = 'queued', external_scanned_at = NULL
-				 WHERE attachment_id IN ({$placeholders})
-				   AND external_status != 'queued'",
-				...$ids
-			)
-		);
-		// phpcs:enable WordPress.DB.DirectDatabaseQuery,WordPress.DB.PreparedSQL.InterpolatedNotPrepared,WordPress.DB.PreparedSQLPlaceholders.UnfinishedPrepare
+		foreach ( $providers as $provider ) {
+			$slug = $provider->provider_slug();
+
+			// phpcs:disable WordPress.DB.DirectDatabaseQuery,WordPress.DB.PreparedSQL.InterpolatedNotPrepared,WordPress.DB.PreparedSQLPlaceholders.UnfinishedPrepare
+			$wpdb->query(
+				$wpdb->prepare(
+					"INSERT INTO {$wpdb->prefix}mra_provider_status (attachment_id, provider, status)
+					 SELECT attachment_id, %s, 'queued'
+					 FROM {$wpdb->prefix}mra_media_index
+					 WHERE attachment_id IN ({$placeholders})
+					 ON DUPLICATE KEY UPDATE status = IF(status NOT IN ('scanned','queued'),'queued',status)",
+					array_merge( array( $slug ), $ids )
+				)
+			);
+			// phpcs:enable WordPress.DB.DirectDatabaseQuery,WordPress.DB.PreparedSQL.InterpolatedNotPrepared,WordPress.DB.PreparedSQLPlaceholders.UnfinishedPrepare
+		}
+
+		self::sync_aggregate_queued_status();
 
-		// Schedule directly — do not call schedule() which would also mark all 'pending' items.
 		if ( ! Scheduler::has_pending( self::AS_HOOK ) ) {
 			Scheduler::schedule_single( self::AS_HOOK );
 		}
 	}
 
 	/**
-	 * Re-queues all attachments that previously failed with external_status = 'error'.
+	 * Re-queues all provider rows that previously failed with status = 'error'.
 	 *
-	 * Does not touch pending, queued, scanned, or matched attachments.
+	 * Does not touch pending, queued, or scanned rows.
 	 * Schedules a background scan batch if any items were re-queued and
 	 * no batch is already pending.
 	 *
-	 * @return int Number of attachments re-queued.
+	 * @return int Number of provider rows re-queued.
 	 */
 	public static function requeue_errors(): int {
 		global $wpdb;
 
 		// phpcs:disable WordPress.DB.DirectDatabaseQuery
 		$count = (int) $wpdb->get_var(
-			"SELECT COUNT(*) FROM {$wpdb->prefix}mra_media_index WHERE external_status = 'error'"
+			"SELECT COUNT(*) FROM {$wpdb->prefix}mra_provider_status WHERE status = 'error'"
 		);
 
 		if ( $count > 0 ) {
 			$wpdb->query(
-				"UPDATE {$wpdb->prefix}mra_media_index
-				 SET external_status = 'queued', external_scanned_at = NULL
-				 WHERE external_status = 'error'"
+				"UPDATE {$wpdb->prefix}mra_provider_status
+				 SET status = 'queued', scanned_at = NULL
+				 WHERE status = 'error'"
 			);
 
+			self::sync_aggregate_queued_status();
+
 			if ( ! Scheduler::has_pending( self::AS_HOOK ) ) {
 				Scheduler::schedule_single( self::AS_HOOK );
 			}
@@ -243,6 +339,14 @@ class ExternalScanner {
 			)
 		);
 
+		$wpdb->query(
+			$wpdb->prepare(
+				"DELETE FROM {$wpdb->prefix}mra_provider_status
+				 WHERE attachment_id IN ({$placeholders})",
+				...$ids
+			)
+		);
+
 		$wpdb->query(
 			$wpdb->prepare(
 				"UPDATE {$wpdb->prefix}mra_media_index
@@ -257,7 +361,7 @@ class ExternalScanner {
 	/**
 	 * Deletes all external scan results and resets every attachment's external_status to pending.
 	 *
-	 * @return int Number of result rows deleted.
+	 * @return int Number of result rows deleted from mra_external_results.
 	 */
 	public static function purge_all(): int {
 		global $wpdb;
@@ -265,6 +369,7 @@ class ExternalScanner {
 		// phpcs:disable WordPress.DB.DirectDatabaseQuery
 		$count = (int) $wpdb->get_var( "SELECT COUNT(*) FROM {$wpdb->prefix}mra_external_results" );
 		$wpdb->query( "DELETE FROM {$wpdb->prefix}mra_external_results" );
+		$wpdb->query( "DELETE FROM {$wpdb->prefix}mra_provider_status" );
 		$wpdb->query(
 			"UPDATE {$wpdb->prefix}mra_media_index
 			 SET external_status = 'pending', external_scanned_at = NULL"
@@ -277,6 +382,8 @@ class ExternalScanner {
 	/**
 	 * Returns a count of attachments grouped by external_status.
 	 *
+	 * Reads from the mra_media_index aggregate column for display purposes.
+	 *
 	 * @return array<string, int>
 	 */
 	public static function get_status_counts(): array {
@@ -315,35 +422,55 @@ class ExternalScanner {
 	// -------------------------------------------------------------------------
 
 	/**
-	 * Scans a single attachment with all providers and updates the index.
+	 * Scans a single attachment with specified providers and updates per-provider status.
+	 *
+	 * After scanning all providers, calls update_aggregate_status() to sync
+	 * the mra_media_index aggregate column.
 	 *
 	 * @param int                     $attachment_id WordPress attachment ID.
 	 * @param string                  $file_url      Public URL of the image.
-	 * @param array<AbstractProvider> $providers     Resolved provider list.
+	 * @param array<AbstractProvider> $providers     Resolved provider list for this attachment.
 	 *
 	 * @return void
 	 */
 	private static function process_attachment( int $attachment_id, string $file_url, array $providers ): void {
 		global $wpdb;
 
-		$any_success = false;
-		$any_match   = false;
-
 		foreach ( $providers as $provider ) {
+			$slug = $provider->provider_slug();
+
 			try {
 				$result = $provider->scan( $attachment_id, $file_url );
-				self::save_result( $attachment_id, $provider->provider_slug(), $result );
-				$any_success = true;
-				if ( $result->match_count() > 0 ) {
-					$any_match = true;
-				}
+				self::save_result( $attachment_id, $slug, $result );
+
+				$wpdb->query( // phpcs:ignore WordPress.DB.DirectDatabaseQuery
+					$wpdb->prepare(
+						// phpcs:ignore WordPress.DB.PreparedSQL.InterpolatedNotPrepared
+						"UPDATE {$wpdb->prefix}mra_provider_status
+						 SET status = 'scanned', scanned_at = NOW()
+						 WHERE attachment_id = %d AND provider = %s",
+						$attachment_id,
+						$slug
+					)
+				);
 			} catch ( \RuntimeException $e ) {
+				$wpdb->query( // phpcs:ignore WordPress.DB.DirectDatabaseQuery
+					$wpdb->prepare(
+						// phpcs:ignore WordPress.DB.PreparedSQL.InterpolatedNotPrepared
+						"UPDATE {$wpdb->prefix}mra_provider_status
+						 SET status = 'error', scanned_at = NOW()
+						 WHERE attachment_id = %d AND provider = %s",
+						$attachment_id,
+						$slug
+					)
+				);
+
 				if ( defined( 'WP_DEBUG_LOG' ) && WP_DEBUG_LOG ) {
 					// phpcs:ignore WordPress.PHP.DevelopmentFunctions.error_log_error_log
 					error_log(
 						sprintf(
 							'[MRA] %s scan failed for attachment %d: %s',
-							$provider->provider_slug(),
+							$slug,
 							$attachment_id,
 							$e->getMessage()
 						)
@@ -352,14 +479,69 @@ class ExternalScanner {
 			}
 		}
 
-		if ( ! $any_success ) {
-			$new_status = 'error';
-		} elseif ( $any_match ) {
-			$new_status = 'matches';
-		} else {
-			$new_status = 'scanned';
+		self::update_aggregate_status( $attachment_id );
+	}
+
+	/**
+	 * Recomputes and persists the aggregate external_status for a single attachment.
+	 *
+	 * Logic:
+	 * - Any provider still queued  → 'queued'
+	 * - No provider succeeded      → 'error'
+	 * - At least one match found   → 'matches'
+	 * - Otherwise                  → 'scanned'
+	 *
+	 * @param int $attachment_id WordPress attachment ID.
+	 *
+	 * @return void
+	 */
+	private static function update_aggregate_status( int $attachment_id ): void {
+		global $wpdb;
+
+		// phpcs:disable WordPress.DB.DirectDatabaseQuery,WordPress.DB.PreparedSQL.InterpolatedNotPrepared
+		$row = $wpdb->get_row(
+			$wpdb->prepare(
+				"SELECT
+				   SUM(status = 'queued') AS queued_count,
+				   SUM(status = 'error')  AS error_count,
+				   SUM(status = 'scanned') AS scanned_count
+				 FROM {$wpdb->prefix}mra_provider_status
+				 WHERE attachment_id = %d",
+				$attachment_id
+			),
+			ARRAY_A
+		);
+		// phpcs:enable WordPress.DB.DirectDatabaseQuery,WordPress.DB.PreparedSQL.InterpolatedNotPrepared
+
+		if ( ! is_array( $row ) ) {
+			return;
 		}
 
+		$queued_count  = isset( $row['queued_count'] ) && is_numeric( $row['queued_count'] ) ? (int) $row['queued_count'] : 0;
+		$error_count   = isset( $row['error_count'] ) && is_numeric( $row['error_count'] ) ? (int) $row['error_count'] : 0;
+		$scanned_count = isset( $row['scanned_count'] ) && is_numeric( $row['scanned_count'] ) ? (int) $row['scanned_count'] : 0;
+
+		if ( $queued_count > 0 ) {
+			$new_status = 'queued';
+		} elseif ( 0 === $scanned_count ) {
+			$new_status = 'error';
+		} else {
+			// Check for matches across scanned providers.
+			// phpcs:disable WordPress.DB.DirectDatabaseQuery,WordPress.DB.PreparedSQL.InterpolatedNotPrepared
+			$match_sum = $wpdb->get_var(
+				$wpdb->prepare(
+					"SELECT SUM(match_count) FROM {$wpdb->prefix}mra_external_results WHERE attachment_id = %d",
+					$attachment_id
+				)
+			);
+			// phpcs:enable WordPress.DB.DirectDatabaseQuery,WordPress.DB.PreparedSQL.InterpolatedNotPrepared
+
+			$new_status = ( is_numeric( $match_sum ) && (int) $match_sum > 0 ) ? 'matches' : 'scanned';
+		}
+
+		// Suppress unused variable inspection: $error_count is available for future use.
+		unset( $error_count );
+
 		$wpdb->update( // phpcs:ignore WordPress.DB.DirectDatabaseQuery
 			$wpdb->prefix . 'mra_media_index',
 			array(
@@ -372,6 +554,57 @@ class ExternalScanner {
 		);
 	}
 
+	/**
+	 * Updates mra_media_index.external_status to 'queued' for all attachments
+	 * that have at least one queued row in mra_provider_status.
+	 *
+	 * Only updates rows not already marked 'queued', to avoid unnecessary writes.
+	 *
+	 * @return void
+	 */
+	private static function sync_aggregate_queued_status(): void {
+		global $wpdb;
+
+		$wpdb->query( // phpcs:ignore WordPress.DB.DirectDatabaseQuery
+			// phpcs:ignore WordPress.DB.PreparedSQL.InterpolatedNotPrepared
+			"UPDATE {$wpdb->prefix}mra_media_index mi
+			 INNER JOIN (
+			   SELECT DISTINCT attachment_id
+			   FROM {$wpdb->prefix}mra_provider_status
+			   WHERE status = 'queued'
+			 ) AS q ON q.attachment_id = mi.attachment_id
+			 SET mi.external_status = 'queued'
+			 WHERE mi.external_status != 'queued'"
+		);
+	}
+
+	/**
+	 * Inserts or updates mra_provider_status rows for all indexed attachments.
+	 *
+	 * For attachments without an existing row for this provider, inserts 'queued'.
+	 * For attachments with an existing non-scanned, non-queued row, resets to 'queued'.
+	 * Scanned and already-queued rows are left unchanged.
+	 *
+	 * @param string $provider_slug Provider machine-readable slug.
+	 *
+	 * @return void
+	 */
+	private static function queue_provider_attachments( string $provider_slug ): void {
+		global $wpdb;
+
+		// phpcs:disable WordPress.DB.DirectDatabaseQuery,WordPress.DB.PreparedSQL.InterpolatedNotPrepared
+		$wpdb->query(
+			$wpdb->prepare(
+				"INSERT INTO {$wpdb->prefix}mra_provider_status (attachment_id, provider, status)
+				 SELECT attachment_id, %s, 'queued'
+				 FROM {$wpdb->prefix}mra_media_index
+				 ON DUPLICATE KEY UPDATE status = IF(status NOT IN ('scanned','queued'),'queued',status)",
+				$provider_slug
+			)
+		);
+		// phpcs:enable WordPress.DB.DirectDatabaseQuery,WordPress.DB.PreparedSQL.InterpolatedNotPrepared
+	}
+
 	/**
 	 * Persists a provider's scan result (upsert via REPLACE INTO).
 	 *
diff --git a/languages/robotstxt-mediaaudit-ca.mo b/languages/robotstxt-mediaaudit-ca.mo
index 90b83b0..65f8a2d 100644
Binary files a/languages/robotstxt-mediaaudit-ca.mo and b/languages/robotstxt-mediaaudit-ca.mo differ
diff --git a/languages/robotstxt-mediaaudit-ca.po b/languages/robotstxt-mediaaudit-ca.po
index 07b72d0..4b416d8 100644
--- a/languages/robotstxt-mediaaudit-ca.po
+++ b/languages/robotstxt-mediaaudit-ca.po
@@ -973,6 +973,18 @@ msgstr "Última exploració (externa)"
 msgid "Scanned At"
 msgstr "Explorat el"
 
+#: includes/Admin/ToolsPage.php:365
+msgid "Provider registry synced. New scans scheduled."
+msgstr "Registre de proveïdors sincronitzat. Nous escanejos programats."
+
+#: includes/Admin/ToolsPage.php:642
+msgid "Sync provider registry"
+msgstr "Sincronitza el registre de proveïdors"
+
+#: includes/Admin/ToolsPage.php:643
+msgid "Creates scan entries for any newly registered external providers. Run this after adding a new provider via the mra/external/providers filter. Already-scanned attachments are not affected."
+msgstr "Crea entrades d'escaneig per als proveïdors externs registrats recentment. Executa-ho després d'afegir un nou proveïdor mitjançant el filtre mra/external/providers. Els fitxers ja escanejats no es veuen afectats."
+
 #~ msgid "https://robotstxt.es/plugins/media-audit/"
 #~ msgstr "https://robotstxt.es/plugins/media-audit/"
 
diff --git a/languages/robotstxt-mediaaudit-es_ES.mo b/languages/robotstxt-mediaaudit-es_ES.mo
index bd685f0..97518fa 100644
Binary files a/languages/robotstxt-mediaaudit-es_ES.mo and b/languages/robotstxt-mediaaudit-es_ES.mo differ
diff --git a/languages/robotstxt-mediaaudit-es_ES.po b/languages/robotstxt-mediaaudit-es_ES.po
index 3b5e1d5..77d3d8c 100644
--- a/languages/robotstxt-mediaaudit-es_ES.po
+++ b/languages/robotstxt-mediaaudit-es_ES.po
@@ -969,6 +969,18 @@ msgstr "Último escaneo (externo)"
 msgid "Scanned At"
 msgstr "Escaneado el"
 
+#: includes/Admin/ToolsPage.php:365
+msgid "Provider registry synced. New scans scheduled."
+msgstr "Registro de proveedores sincronizado. Nuevos escaneos programados."
+
+#: includes/Admin/ToolsPage.php:642
+msgid "Sync provider registry"
+msgstr "Sincronizar registro de proveedores"
+
+#: includes/Admin/ToolsPage.php:643
+msgid "Creates scan entries for any newly registered external providers. Run this after adding a new provider via the mra/external/providers filter. Already-scanned attachments are not affected."
+msgstr "Crea entradas de escaneo para los proveedores externos recién registrados. Ejecútalo después de añadir un nuevo proveedor mediante el filtro mra/external/providers. Los archivos ya escaneados no se ven afectados."
+
 #~ msgid "https://robotstxt.es/plugins/media-audit/"
 #~ msgstr "https://robotstxt.es/plugins/media-audit/"
 
diff --git a/readme.txt b/readme.txt
index b9c4a00..3668246 100644
--- a/readme.txt
+++ b/readme.txt
@@ -5,7 +5,7 @@ Requires at least: 6.8
 Tested up to: 7.0
 Requires PHP: 8.2
 Requires Plugins: action-scheduler
-Stable tag: 1.2.0
+Stable tag: 1.3.0
 License: GPL-3.0-or-later
 License URI: https://www.gnu.org/licenses/gpl-3.0.txt
 
@@ -98,6 +98,13 @@ By default, no. Enable **Settings → Delete data on uninstall** if you want all
 
 Only the 3 latest versions. The full changelog is in [changelog.txt](changelog.txt).
 
+= 1.3.0 =
+
+* Added per-provider scan tracking table (`mra_provider_status`) so each API is tracked independently.
+* Added "Sync providers" operation: registers newly configured providers for all existing attachments without rescanning already-completed work.
+* Changed `mra_external_results.provider` from a fixed ENUM to `varchar(100)` for extensibility.
+* DB schema bumped to 1.1.0 with an automatic migration on update.
+
 = 1.2.0 =
 
 * Added browser-based AJAX scan runner in the Tools page (runs without WP-Cron or Action Scheduler).
diff --git a/robotstxt-mediaaudit.php b/robotstxt-mediaaudit.php
index 9874634..de6e183 100644
--- a/robotstxt-mediaaudit.php
+++ b/robotstxt-mediaaudit.php
@@ -3,7 +3,7 @@
  * Plugin Name: Media Audit (by ROBOTSTXT)
  * Plugin URI: https://git.robotstxt.es/ROBOTSTXT/robotstxt-mediaaudit
  * Description: Internal media library usage auditing and external reverse image search to detect potential copyright issues.
- * Version: 1.2.0
+ * Version: 1.3.0
  * Requires at least: 6.8
  * Tested up to: 7.0
  * Requires PHP: 8.2
@@ -23,8 +23,8 @@ if ( ! defined( 'ABSPATH' ) ) {
 	exit;
 }
 
-define( 'ROBOTSTXT_MEDIAAUDIT_VERSION', '1.2.0' );
-define( 'ROBOTSTXT_MEDIAAUDIT_DB_VERSION', '1.0.1' );
+define( 'ROBOTSTXT_MEDIAAUDIT_VERSION', '1.3.0' );
+define( 'ROBOTSTXT_MEDIAAUDIT_DB_VERSION', '1.1.0' );
 define( 'ROBOTSTXT_MEDIAAUDIT_PLUGIN_FILE', __FILE__ );
 define( 'ROBOTSTXT_MEDIAAUDIT_PLUGIN_DIR', plugin_dir_path( __FILE__ ) );
 define( 'ROBOTSTXT_MEDIAAUDIT_PLUGIN_URL', plugin_dir_url( __FILE__ ) );
diff --git a/uninstall.php b/uninstall.php
index b4afef9..19ca27f 100644
--- a/uninstall.php
+++ b/uninstall.php
@@ -23,6 +23,7 @@ if ( ! $delete ) {
 global $wpdb;
 
 // Drop tables in reverse dependency order.
+$wpdb->query( "DROP TABLE IF EXISTS `{$wpdb->prefix}mra_provider_status`" );  // phpcs:ignore WordPress.DB.DirectDatabaseQuery
 $wpdb->query( "DROP TABLE IF EXISTS `{$wpdb->prefix}mra_external_results`" ); // phpcs:ignore WordPress.DB.DirectDatabaseQuery
 $wpdb->query( "DROP TABLE IF EXISTS `{$wpdb->prefix}mra_media_usage`" );      // phpcs:ignore WordPress.DB.DirectDatabaseQuery
 $wpdb->query( "DROP TABLE IF EXISTS `{$wpdb->prefix}mra_media_index`" );      // phpcs:ignore WordPress.DB.DirectDatabaseQuery