diff --git a/projects/packages/my-jetpack/_inc/utils/async-notification-bubble.ts b/projects/packages/my-jetpack/_inc/utils/async-notification-bubble.ts
new file mode 100644
index 0000000000000..7ecc6b664773e
--- /dev/null
+++ b/projects/packages/my-jetpack/_inc/utils/async-notification-bubble.ts
@@ -0,0 +1,46 @@
+/**
+ * My Jetpack Notification Bubble async loader.
+ * Fetches fresh alert data via REST API without blocking page load.
+ */
+import apiFetch from '@wordpress/api-fetch';
+
+// Minimal type for counting non-silent alerts.
+type Alert = {
+	is_silent?: boolean;
+};
+
+type AlertsResponse = Record< string, Alert >;
+
+apiFetch< AlertsResponse >( {
+	path: 'my-jetpack/v1/red-bubble-notifications',
+	method: 'POST',
+} )
+	.then( alerts => {
+		const count = Object.values( alerts ).filter( a => ! a.is_silent ).length;
+		const menuItem = document.querySelector( '#toplevel_page_jetpack .wp-menu-name' );
+
+		if ( ! menuItem ) {
+			return;
+		}
+
+		const bubble = menuItem.querySelector( '.awaiting-mod' );
+
+		if ( count > 0 ) {
+			if ( bubble ) {
+				bubble.className = 'awaiting-mod';
+				bubble.textContent = String( count );
+			} else {
+				const span = document.createElement( 'span' );
+				span.className = 'awaiting-mod';
+				span.textContent = String( count );
+				menuItem.appendChild( document.createTextNode( ' ' ) );
+				menuItem.appendChild( span );
+			}
+		} else if ( bubble ) {
+			bubble.remove();
+		}
+	} )
+	.catch( ( error: Error ) => {
+		// eslint-disable-next-line no-console
+		console.error( '[My Jetpack] Failed to fetch notification alerts:', error );
+	} );
diff --git a/projects/packages/my-jetpack/changelog/MYJP-268-bubble-async b/projects/packages/my-jetpack/changelog/MYJP-268-bubble-async
new file mode 100644
index 0000000000000..795ebd3ab3ee5
--- /dev/null
+++ b/projects/packages/my-jetpack/changelog/MYJP-268-bubble-async
@@ -0,0 +1,4 @@
+Significance: patch
+Type: changed
+
+My Jetpack: Check red bubble notification async when cache is not available.
diff --git a/projects/packages/my-jetpack/src/class-initializer.php b/projects/packages/my-jetpack/src/class-initializer.php
index fdeb897d30f97..e64d3106d7d74 100644
--- a/projects/packages/my-jetpack/src/class-initializer.php
+++ b/projects/packages/my-jetpack/src/class-initializer.php
@@ -688,12 +688,15 @@ public static function get_idc_container_id() {
 	}
 
 	/**
-	 * Conditionally append the red bubble notification to the "Jetpack" menu item if there are alerts to show
+	 * Conditionally append the red bubble notification to the "Jetpack" menu item if there are alerts to show.
+	 *
+	 * On My Jetpack page: Uses blocking behavior to fetch fresh data.
+	 * On other admin pages: Uses cached data only to avoid blocking, with async JS fetch if cache is empty.
 	 *
 	 * @return void
 	 */
 	public static function maybe_show_red_bubble() {
-		global $menu;
+		global $menu, $pagenow;
 
 		// Don't show red bubble alerts for non-admin users
 		// These alerts are generally only actionable for admins
@@ -708,14 +711,32 @@ public static function maybe_show_red_bubble() {
 			return;
 		}
 
-		$rbn = new Red_Bubble_Notifications();
+		// Check if we're on the My Jetpack page
+		// phpcs:ignore WordPress.Security.NonceVerification.Recommended
+		$page               = isset( $_GET['page'] ) ? sanitize_text_field( wp_unslash( $_GET['page'] ) ) : '';
+		$is_my_jetpack_page = $pagenow === 'admin.php' && $page === 'my-jetpack';
+
+		if ( $is_my_jetpack_page ) {
+			// On My Jetpack page: use blocking behavior for fresh data.
+			add_filter( 'my_jetpack_red_bubble_notification_slugs', array( Red_Bubble_Notifications::class, 'add_red_bubble_alerts' ) );
+			$red_bubble_alerts = Red_Bubble_Notifications::get_red_bubble_alerts();
+		} else {
+			// On other pages: use cached data only to avoid blocking.
+			$cached_alerts = Red_Bubble_Notifications::get_cached_alerts();
+
+			if ( false === $cached_alerts ) {
+				// No cache - fetch asynchronously via JS.
+				add_action( 'admin_enqueue_scripts', array( __CLASS__, 'enqueue_red_bubble_script' ) );
+				return;
+			}
+
+			$red_bubble_alerts = $cached_alerts;
+		}
 
-		// filters for the items in this file
-		add_filter( 'my_jetpack_red_bubble_notification_slugs', array( $rbn, 'add_red_bubble_alerts' ) );
+		// Filter out silent alerts
 		$red_bubble_alerts = array_filter(
-			$rbn::get_red_bubble_alerts(),
+			$red_bubble_alerts,
 			function ( $alert ) {
-				// We don't want to show the red bubble for silent alerts
 				return empty( $alert['is_silent'] );
 			}
 		);
@@ -731,6 +752,24 @@ function ( $alert ) {
 		}
 	}
 
+	/**
+	 * Enqueue the notification bubble script.
+	 * Fetches fresh alert data via REST API without blocking page load.
+	 *
+	 * @return void
+	 */
+	public static function enqueue_red_bubble_script() {
+		Assets::register_script(
+			'my_jetpack_notification_bubble',
+			'../build/async-notification-bubble.js',
+			__FILE__,
+			array(
+				'enqueue'   => true,
+				'in_footer' => true,
+			)
+		);
+	}
+
 	/**
 	 * Get list of module names sorted by their recommendation score
 	 *
diff --git a/projects/packages/my-jetpack/src/class-red-bubble-notifications.php b/projects/packages/my-jetpack/src/class-red-bubble-notifications.php
index 06eea0b29fd68..74da7f992c255 100644
--- a/projects/packages/my-jetpack/src/class-red-bubble-notifications.php
+++ b/projects/packages/my-jetpack/src/class-red-bubble-notifications.php
@@ -368,6 +368,17 @@ public static function add_red_bubble_alerts( array $red_bubble_slugs ) {
 		}
 	}
 
+	/**
+	 * Get cached red bubble alerts without triggering expensive computation.
+	 * Returns the cached transient value or an empty array if not cached.
+	 *
+	 * @return array Cached alerts or empty array.
+	 */
+	public static function get_cached_alerts() {
+		$stored_alerts = get_transient( self::MY_JETPACK_RED_BUBBLE_TRANSIENT_KEY );
+		return $stored_alerts !== false ? $stored_alerts : array();
+	}
+
 	/**
 	 * Collect all possible alerts that we might use a red bubble notification for
 	 *
diff --git a/projects/packages/my-jetpack/webpack.config.js b/projects/packages/my-jetpack/webpack.config.js
index 1555ba45ffafe..f7c9016438df2 100644
--- a/projects/packages/my-jetpack/webpack.config.js
+++ b/projects/packages/my-jetpack/webpack.config.js
@@ -5,6 +5,7 @@ module.exports = [
 	{
 		entry: {
 			index: './_inc/admin.jsx',
+			'async-notification-bubble': './_inc/utils/async-notification-bubble.ts',
 		},
 		mode: jetpackWebpackConfig.mode,
 		devtool: jetpackWebpackConfig.devtool,
diff --git a/projects/plugins/backup/changelog/MYJP-268-bubble-async b/projects/plugins/backup/changelog/MYJP-268-bubble-async
new file mode 100644
index 0000000000000..795ebd3ab3ee5
--- /dev/null
+++ b/projects/plugins/backup/changelog/MYJP-268-bubble-async
@@ -0,0 +1,4 @@
+Significance: patch
+Type: changed
+
+My Jetpack: Check red bubble notification async when cache is not available.
diff --git a/projects/plugins/boost/changelog/MYJP-268-bubble-async b/projects/plugins/boost/changelog/MYJP-268-bubble-async
new file mode 100644
index 0000000000000..795ebd3ab3ee5
--- /dev/null
+++ b/projects/plugins/boost/changelog/MYJP-268-bubble-async
@@ -0,0 +1,4 @@
+Significance: patch
+Type: changed
+
+My Jetpack: Check red bubble notification async when cache is not available.
diff --git a/projects/plugins/jetpack/changelog/MYJP-268-bubble-async b/projects/plugins/jetpack/changelog/MYJP-268-bubble-async
new file mode 100644
index 0000000000000..cc73c077fc0c1
--- /dev/null
+++ b/projects/plugins/jetpack/changelog/MYJP-268-bubble-async
@@ -0,0 +1,4 @@
+Significance: patch
+Type: enhancement
+
+My Jetpack: Check red bubble notification async when cache is not available.
diff --git a/projects/plugins/protect/changelog/MYJP-268-bubble-async b/projects/plugins/protect/changelog/MYJP-268-bubble-async
new file mode 100644
index 0000000000000..795ebd3ab3ee5
--- /dev/null
+++ b/projects/plugins/protect/changelog/MYJP-268-bubble-async
@@ -0,0 +1,4 @@
+Significance: patch
+Type: changed
+
+My Jetpack: Check red bubble notification async when cache is not available.
diff --git a/projects/plugins/search/changelog/MYJP-268-bubble-async b/projects/plugins/search/changelog/MYJP-268-bubble-async
new file mode 100644
index 0000000000000..795ebd3ab3ee5
--- /dev/null
+++ b/projects/plugins/search/changelog/MYJP-268-bubble-async
@@ -0,0 +1,4 @@
+Significance: patch
+Type: changed
+
+My Jetpack: Check red bubble notification async when cache is not available.
diff --git a/projects/plugins/social/changelog/MYJP-268-bubble-async b/projects/plugins/social/changelog/MYJP-268-bubble-async
new file mode 100644
index 0000000000000..795ebd3ab3ee5
--- /dev/null
+++ b/projects/plugins/social/changelog/MYJP-268-bubble-async
@@ -0,0 +1,4 @@
+Significance: patch
+Type: changed
+
+My Jetpack: Check red bubble notification async when cache is not available.
diff --git a/projects/plugins/starter-plugin/changelog/MYJP-268-bubble-async b/projects/plugins/starter-plugin/changelog/MYJP-268-bubble-async
new file mode 100644
index 0000000000000..795ebd3ab3ee5
--- /dev/null
+++ b/projects/plugins/starter-plugin/changelog/MYJP-268-bubble-async
@@ -0,0 +1,4 @@
+Significance: patch
+Type: changed
+
+My Jetpack: Check red bubble notification async when cache is not available.
diff --git a/projects/plugins/videopress/changelog/MYJP-268-bubble-async b/projects/plugins/videopress/changelog/MYJP-268-bubble-async
new file mode 100644
index 0000000000000..795ebd3ab3ee5
--- /dev/null
+++ b/projects/plugins/videopress/changelog/MYJP-268-bubble-async
@@ -0,0 +1,4 @@
+Significance: patch
+Type: changed
+
+My Jetpack: Check red bubble notification async when cache is not available.