diff --git a/index.php b/index.php
index 00b2786..d81be84 100644
--- a/index.php
+++ b/index.php
@@ -22,6 +22,7 @@ if ($_SERVER['REQUEST_METHOD'] === 'POST') {
     $fileId = extractBoxFileId($boxUrl);
     $result = null;
     $error = null;
+    $debugInfo = []; // Debug information
 
     if ($fileId) {
         // Prepare data for webhook
@@ -32,9 +33,11 @@ if ($_SERVER['REQUEST_METHOD'] === 'POST') {
             'timestamp' => date('Y-m-d H:i:s')
         ];
 
+        $debugInfo['sent_data'] = $data;
+
         // Initialize cURL session
         $ch = curl_init($webhookUrl);
-        
+
         // Set cURL options
         curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
         curl_setopt($ch, CURLOPT_POST, true);
@@ -42,22 +45,28 @@ if ($_SERVER['REQUEST_METHOD'] === 'POST') {
         curl_setopt($ch, CURLOPT_HTTPHEADER, [
             'Content-Type: application/json'
         ]);
-        
+
         // Execute cURL request
         $response = curl_exec($ch);
-        
+        $debugInfo['raw_response'] = $response;
+
         // Check for errors
         if (curl_errno($ch)) {
             $error = 'cURL Error: ' . curl_error($ch);
+            $debugInfo['curl_error'] = curl_error($ch);
         } else {
             $httpCode = curl_getinfo($ch, CURLINFO_HTTP_CODE);
+            $debugInfo['http_code'] = $httpCode;
+
             if ($httpCode >= 200 && $httpCode < 300) {
                 $result = json_decode($response, true);
+                $debugInfo['decoded_result'] = $result;
+                $debugInfo['json_decode_error'] = json_last_error_msg();
             } else {
                 $error = "HTTP Error: $httpCode - $response";
             }
         }
-        
+
         // Close cURL session
         curl_close($ch);
     } else {
@@ -317,6 +326,44 @@ if ($_SERVER['REQUEST_METHOD'] === 'POST') {
         </form>
         </div> <!-- end protected-content -->
 
+        <!-- DEBUG SECTION - Always show after POST -->
+        <?php if ($_SERVER['REQUEST_METHOD'] === 'POST'): ?>
+        <div class="result" style="background-color: #fff3cd; border: 2px solid #ffc107; padding: 15px; margin-top: 20px;">
+            <h2>🔍 DEBUG INFORMATION</h2>
+
+            <div style="margin-bottom: 15px;">
+                <strong>POST Request Received:</strong> Yes<br>
+                <strong>Box URL:</strong> <?php echo htmlspecialchars($boxUrl ?? 'Not set'); ?><br>
+                <strong>Username:</strong> <?php echo htmlspecialchars($username ?? 'Not set'); ?><br>
+                <strong>File ID:</strong> <?php echo htmlspecialchars($fileId ?? 'Not extracted'); ?><br>
+            </div>
+
+            <?php if (!empty($debugInfo)): ?>
+            <div style="background: white; padding: 10px; border-radius: 4px; margin-bottom: 10px;">
+                <h3>Debug Info:</h3>
+                <pre style="max-height: 300px; overflow: auto;"><?php echo htmlspecialchars(print_r($debugInfo, true)); ?></pre>
+            </div>
+            <?php endif; ?>
+
+            <div style="background: white; padding: 10px; border-radius: 4px; margin-bottom: 10px;">
+                <h3>$result variable:</h3>
+                <strong>isset($result):</strong> <?php echo isset($result) ? 'TRUE' : 'FALSE'; ?><br>
+                <strong>is_null($result):</strong> <?php echo is_null($result) ? 'TRUE' : 'FALSE'; ?><br>
+                <strong>Type:</strong> <?php echo gettype($result); ?><br>
+                <?php if ($result): ?>
+                    <pre style="max-height: 300px; overflow: auto;"><?php echo htmlspecialchars(print_r($result, true)); ?></pre>
+                <?php endif; ?>
+            </div>
+
+            <div style="background: white; padding: 10px; border-radius: 4px;">
+                <h3>$error variable:</h3>
+                <strong>isset($error):</strong> <?php echo isset($error) ? 'TRUE' : 'FALSE'; ?><br>
+                <strong>Value:</strong> <?php echo htmlspecialchars($error ?? 'NULL'); ?>
+            </div>
+        </div>
+        <?php endif; ?>
+        <!-- END DEBUG SECTION -->
+
         <?php if (isset($result) || isset($error)): ?>
         <div class="result">
             <h2>Result</h2>