diff --git a/runtime/lib/webdav-warmup-audit.php b/runtime/lib/webdav-warmup-audit.php
new file mode 100644
index 0000000..cd2bfa0
--- /dev/null
+++ b/runtime/lib/webdav-warmup-audit.php
@@ -0,0 +1,112 @@
+<?php
+if (PHP_SAPI !== 'cli')
+{
+  http_response_code(404);
+  exit;
+}
+
+$piwigo_root = realpath(dirname(__DIR__, 3));
+if ($piwigo_root === false)
+{
+  fwrite(STDERR, "Piwigo-Root wurde nicht gefunden.\n");
+  exit(1);
+}
+define('PHPWG_ROOT_PATH', rtrim($piwigo_root, DIRECTORY_SEPARATOR).DIRECTORY_SEPARATOR);
+
+$_SERVER['REMOTE_ADDR'] = '127.0.0.1';
+$_SERVER['SERVER_ADDR'] = '127.0.0.1';
+$_SERVER['SERVER_NAME'] = 'localhost';
+$_SERVER['HTTP_HOST'] = 'localhost';
+$_SERVER['SERVER_PORT'] = '80';
+$_SERVER['REQUEST_METHOD'] = 'GET';
+$_SERVER['REQUEST_URI'] = '/';
+$_SERVER['SCRIPT_NAME'] = '/plugins/bratonien_tools/runtime/lib/webdav-warmup-audit.php';
+$_SERVER['PHP_SELF'] = $_SERVER['SCRIPT_NAME'];
+$_SERVER['QUERY_STRING'] = '';
+$_SERVER['HTTP_USER_AGENT'] = 'Bratonien-WebDAV-Warmup-Audit/0.9.7.1.8';
+$_SERVER['HTTPS'] = 'off';
+
+require_once(PHPWG_ROOT_PATH.'include/common.inc.php');
+if (!defined('BRATONIEN_TOOLS_PATH'))
+{
+  fwrite(STDERR, "Bratonien Tools ist nicht aktiv.\n");
+  exit(1);
+}
+require_once(BRATONIEN_TOOLS_PATH.'include/webdav_materialize_runtime.inc.php');
+
+$total = 0;
+$connector = 0;
+$errors = array();
+$warnings = array();
+$resolved_to_ids = array();
+
+$result = pwg_query('SELECT id, path FROM '.IMAGES_TABLE.' ORDER BY id');
+while ($row = pwg_db_fetch_assoc($result))
+{
+  $total++;
+  $image_id = (int)$row['id'];
+  $info = bratonien_tools_webdav_materialize_source_info($image_id);
+  if (!$info) continue;
+  $connector++;
+
+  $logical = (string)$row['path'];
+  if ($logical === '')
+  {
+    $errors[] = 'Bild #'.$image_id.': Piwigo-Pfad ist leer.';
+    continue;
+  }
+  if (strpos($logical, '/') !== 0)
+  {
+    $logical = PHPWG_ROOT_PATH.ltrim(preg_replace('#^\./#', '', $logical), '/');
+  }
+
+  $resolved = realpath($logical);
+  if ($resolved === false || !is_file($resolved))
+  {
+    $errors[] = 'Bild #'.$image_id.': Piwigo-Pfad kann nicht auf eine Datei aufgelöst werden: '.$logical;
+    continue;
+  }
+
+  $normalized = str_replace('\\', '/', $resolved);
+  $expected = '/nc-webdav-source/connection-'.(int)$info['connection_id'].'/root-'.(int)$info['root_fileid'].'/';
+  if (strpos($normalized, $expected) === false)
+  {
+    $errors[] = 'Bild #'.$image_id.': realpath liegt nicht in der erwarteten Connector-Wurzel: '.$normalized;
+  }
+
+  $webdav_path = trim((string)($info['webdav_path'] ?? ''), '/');
+  if ($webdav_path === '')
+  {
+    $errors[] = 'Bild #'.$image_id.': WebDAV-Pfad fehlt.';
+  }
+  if ((int)($info['connection_id'] ?? 0) < 1 || (int)($info['root_fileid'] ?? 0) < 1)
+  {
+    $errors[] = 'Bild #'.$image_id.': Verbindung oder Root-fileid ist ungültig.';
+  }
+  if ((int)($info['fileid'] ?? 0) < 1)
+  {
+    $warnings[] = 'Bild #'.$image_id.': Nextcloud-fileid fehlt; Original-Fallback bleibt möglich.';
+  }
+
+  if (!isset($resolved_to_ids[$normalized])) $resolved_to_ids[$normalized] = array();
+  $resolved_to_ids[$normalized][] = $image_id;
+}
+
+foreach ($resolved_to_ids as $path => $ids)
+{
+  if (count($ids) > 1)
+  {
+    $warnings[] = 'Mehrere Piwigo-Bild-IDs zeigen auf dieselbe physische Connector-Quelle: '.implode(',', $ids).' -> '.$path;
+  }
+}
+
+printf("WebDAV-Warmup-Pfadaudit\n");
+printf("Piwigo-Bilder gesamt: %d\n", $total);
+printf("Connector-Bilder: %d\n", $connector);
+printf("Fehler: %d\n", count($errors));
+printf("Warnungen: %d\n", count($warnings));
+
+foreach ($errors as $error) fwrite(STDERR, "ERROR: ".$error."\n");
+foreach ($warnings as $warning) fwrite(STDOUT, "WARN: ".$warning."\n");
+
+exit($errors ? 2 : 0);