diff --git a/src/cli/document/clean.php b/src/cli/document/clean.php
index b410579..67d7c52 100644
--- a/src/cli/document/clean.php
+++ b/src/cli/document/clean.php
@@ -116,9 +116,7 @@ foreach ($config->cli->document->crawl->skip->stripos->url as $condition)
             implode(
                 '/',
                 str_split(
-                    md5(
-                        $document->get('url')
-                    )
+                    $document->getId()
                 )
             )
         );
diff --git a/src/cli/document/crawl.php b/src/cli/document/crawl.php
index 74a0232..4dd2c9c 100644
--- a/src/cli/document/crawl.php
+++ b/src/cli/document/crawl.php
@@ -13,14 +13,14 @@ function getLastSnapTime(array $files): int
 
     foreach ($files as $file)
     {
-        if (in_array($file, ['.', '..']))
+        if (is_dir($filename) || is_link($filename) || str_starts_with('.'))
         {
             continue;
         }
 
         $time[] = preg_replace(
-            '/\D/',
-            '',
+            '/^([\d]+)\.tar\.gz&/',
+            '$1',
             basename(
                 $file
             )
@@ -704,10 +704,6 @@ foreach($index->search('')
                 // Generate path
                 $time = time();
 
-                $md5url = md5(
-                    $document->get('url')
-                );
-
                 /// absolute
                 if (str_starts_with($config->snap->storage->tmp->directory, '/'))
                 {
@@ -725,7 +721,7 @@ foreach($index->search('')
                 $tmp = sprintf(
                     '%s/%s.%s.tar',
                     $filepath,
-                    $md5url,
+                    $document->getId(),
                     $time
                 );
 
@@ -822,7 +818,7 @@ foreach($index->search('')
                             implode(
                                 '/',
                                 str_split(
-                                    $md5url
+                                    $document->getId()
                                 )
                             )
                         );
@@ -960,7 +956,7 @@ foreach($index->search('')
                     $filepath = implode(
                         '/',
                         str_split(
-                            $md5url
+                            $document->getId()
                         )
                     );
 
diff --git a/src/webui/api.php b/src/webui/api.php
index db6346f..85c07e3 100644
--- a/src/webui/api.php
+++ b/src/webui/api.php
@@ -42,12 +42,12 @@ switch (!empty($_GET['action']) ? $_GET['action'] : false) {
 
                     exit;
 
-                    case isset($_GET['md5url']) && preg_match('/^[a-f0-9]{32}$/', $_GET['md5url']):
+                    case isset($_GET['id']) && preg_match('/^[\d]+$/', $_GET['id']):
 
                         echo json_encode(
                             [
                                 'status'  => false,
-                                'message' => _('valid md5url required')
+                                'message' => _('valid document identifier required')
                             ]
                         );
 
@@ -102,7 +102,7 @@ switch (!empty($_GET['action']) ? $_GET['action'] : false) {
                             implode(
                                 '/',
                                 str_split(
-                                    $_GET['md5url']
+                                    $_GET['id']
                                 )
                             ),
                             $_GET['time']
@@ -136,7 +136,7 @@ switch (!empty($_GET['action']) ? $_GET['action'] : false) {
                         header(
                             sprintf(
                                 'Content-Disposition: filename="snap.%s.%s"',
-                                $_GET['md5url'],
+                                $_GET['id'],
                                 basename(
                                     $filename
                                 )
@@ -175,7 +175,7 @@ switch (!empty($_GET['action']) ? $_GET['action'] : false) {
                         implode(
                             '/',
                             str_split(
-                                $_GET['md5url']
+                                $_GET['id']
                             )
                         ),
                         $_GET['time']
@@ -222,7 +222,7 @@ switch (!empty($_GET['action']) ? $_GET['action'] : false) {
                     header(
                         sprintf(
                             'Content-Disposition: filename="snap.%s.%s"',
-                            $_GET['md5url'],
+                            $_GET['id'],
                             basename(
                                 $filename
                             )
diff --git a/src/webui/explore.php b/src/webui/explore.php
index 6b33e52..0bf0f8a 100644
--- a/src/webui/explore.php
+++ b/src/webui/explore.php
@@ -77,14 +77,10 @@ $icon = $identicon->getImageDataUri('webp');
 $snaps = [];
 
 /// Prepare location
-$md5url = md5(
-  $document->url
-);
-
 $filepath = implode(
   '/',
   str_split(
-      $md5url
+    $document->getId()
   )
 );
 
@@ -109,18 +105,25 @@ if ($config->snap->storage->local->enabled)
   {
     foreach ((array) scandir($directory) as $filename)
     {
-      if (in_array($filename, ['.', '..']))
+      if (is_dir($filename) || is_link($filename) || str_starts_with('.'))
       {
         continue;
       }
 
-      $basename = basename($filename);
-      $time = preg_replace('/\D/', '', $basename);
+      $basename = basename(
+        $filename
+      );
+
+      $time = preg_replace(
+        '/^([\d]+)\.tar\.gz&/',
+        '',
+        $basename
+      );
 
       $snaps[_('Local')][] = (object)
       [
         'source' => 'local',
-        'md5url' => $md5url,
+        'id'     => $document->getId(),
         'name'   => $basename,
         'time'   => $time,
         'size'   => filesize(
@@ -161,13 +164,20 @@ foreach ($config->snap->storage->remote->ftp as $i => $ftp)
 
     foreach ((array) $remote->nlist($filepath) as $filename)
     {
-      $basename = basename($filename);
-      $time = preg_replace('/\D/', '', $basename);
+      $basename = basename(
+        $filename
+      );
+
+      $time = preg_replace(
+        '/^([\d]+)\.tar\.gz&/',
+        '',
+        $basename
+      );
 
       $snaps[sprintf(_('Server #%s'), $i + 1)][] = (object)
       [
         'source' => $i,
-        'md5url' => $md5url,
+        'id'     => $document->getId(),
         'name'   => $basename,
         'time'   => $time,
         'size'   => $remote->size($filename),
@@ -481,7 +491,7 @@ if ($config->webui->index->enabled)
                   <ul>
                     <?php foreach ($snap as $file) { ?>
                       <li>
-                        <a rel="nofollow" href="api.php?action=snap&method=download&source=<?php echo $file->source ?>&md5url=<?php echo $file->md5url ?>&time=<?php echo $file->time ?>">
+                        <a rel="nofollow" href="api.php?action=snap&method=download&source=<?php echo $file->source ?>&id=<?php echo $file->id ?>&time=<?php echo $file->time ?>">
                           <?php echo sprintf('%s (tar.gz / %s bytes)', date('c', $file->time), number_format($file->size)) ?>
                         </a>
                       </li>