diff --git a/database/migrations/2025_12_26_000000_add_indexes_to_web_socket_dialog_msgs.php b/database/migrations/2025_12_26_000000_add_indexes_to_web_socket_dialog_msgs.php
new file mode 100644
index 000000000..ace8897bd
--- /dev/null
+++ b/database/migrations/2025_12_26_000000_add_indexes_to_web_socket_dialog_msgs.php
@@ -0,0 +1,40 @@
+<?php
+
+use Illuminate\Database\Migrations\Migration;
+use Illuminate\Database\Schema\Blueprint;
+use Illuminate\Support\Facades\Schema;
+
+class AddIndexesToWebSocketDialogMsgs extends Migration
+{
+    /**
+     * Run the migrations.
+     *
+     * @return void
+     */
+    public function up()
+    {
+        Schema::table('web_socket_dialog_msgs', function (Blueprint $table) {
+            $table->index(['dialog_id', 'deleted_at', 'id']);
+            $table->index(['reply_id', 'deleted_at']);
+        });
+
+        Schema::table('web_socket_dialog_msg_reads', function (Blueprint $table) {
+            $table->index(['userid', 'silence', 'read_at'], 'idx_ws_msg_reads_userid_silence_read_at');
+            $table->index(['dialog_id', 'userid', 'mention', 'read_at'], 'idx_ws_msg_reads_dialog_user_mention_read_at');
+        });
+
+        Schema::table('user_checkin_records', function (Blueprint $table) {
+            $table->index(['userid', 'mac', 'date'], 'idx_user_checkin_records_userid_mac_date');
+        });
+    }
+
+    /**
+     * Reverse the migrations.
+     *
+     * @return void
+     */
+    public function down()
+    {
+        // No-op: do not drop indexes automatically.
+    }
+}