diff --git a/app/node_views/results.html b/app/node_views/results.html
index a7559ae..000d825 100644
--- a/app/node_views/results.html
+++ b/app/node_views/results.html
@@ -53,6 +53,9 @@
                             <li ng-if="phantomasResults.metrics.iframesCount">
                                 Number of iframes: {{phantomasResults.metrics.iframesCount}}
                             </li>
+                            <li ng-if="phantomasResults.metrics.DOMidDuplicated">
+                                IDs duplicated: {{phantomasResults.metrics.DOMidDuplicated}}
+                            </li>
                         </ul>
                     </div>
                 </div>
diff --git a/app/public/scripts/resultsCtrl.js b/app/public/scripts/resultsCtrl.js
index f6055c1..3816175 100644
--- a/app/public/scripts/resultsCtrl.js
+++ b/app/public/scripts/resultsCtrl.js
@@ -156,7 +156,8 @@ app.controller('ResultsCtrl', function ($scope) {
         var note = 'A';
         var score = $scope.phantomasResults.metrics.DOMelementsCount +
                     Math.pow($scope.phantomasResults.metrics.DOMelementMaxDepth, 2) +
-                    $scope.phantomasResults.metrics.iframesCount * 50;
+                    $scope.phantomasResults.metrics.iframesCount * 50 +
+                    $scope.phantomasResults.metrics.DOMidDuplicated * 25;
         if (score > 1000) {
             note = 'B';
         }