もう一つ

index.php

@@ -54,6 +54,15 @@
     else {
       $url = str_replace('https://', '', $_POST['hozonsite']);
       $url = str_replace('http://', '', $url);
+      if (
+        !str_ends_with($url, '.html') &&
+        !str_ends_with($url, '/') &&
+        !str_ends_with($url, '.htm') &&
+        !str_ends_with($url, '.xhtml') &&
+        !str_ends_with($url, '.php') &&
+        !str_ends_with($url, '.asp') &&
+        !str_ends_with($url, '.aspx')
+      ) $url = $url.'/';
       $fullurl = 'archive/'.time();
       $exists = glob('archive/*/'.$url);