diff --git a/CRM/Contact/Form/Contact.php b/CRM/Contact/Form/Contact.php
index 7314693bca2..9d92c7dd880 100644
--- a/CRM/Contact/Form/Contact.php
+++ b/CRM/Contact/Form/Contact.php
@@ -615,6 +615,7 @@ public static function formRule($fields, &$errors, $contactId, $contactType) {
       $blocks['Address'] = $otherEditOptions['Address'];
     }
 
+    $website_types = array();
     $openIds = array();
     $primaryID = FALSE;
     foreach ($blocks as $name => $label) {
@@ -629,8 +630,17 @@ public static function formRule($fields, &$errors, $contactId, $contactType) {
           }
 
           if ($dataExists) {
-            // skip remaining checks for website
             if ($name == 'website') {
+              if (!empty($blockValues['website_type_id'])) {
+                if (empty($website_types[$blockValues['website_type_id']])) {
+                  $website_types[$blockValues['website_type_id']] = $blockValues['website_type_id'];
+                }
+                else {
+                  $errors["{$name}[1][website_type_id]"] = ts('Contacts may only have one website of each type at most.');
+                }
+              }
+
+              // skip remaining checks for website
               continue;
             }
 
diff --git a/CRM/Contact/Form/Inline/Website.php b/CRM/Contact/Form/Inline/Website.php
index c4664a66519..14f64d71587 100644
--- a/CRM/Contact/Form/Inline/Website.php
+++ b/CRM/Contact/Form/Inline/Website.php
@@ -87,6 +87,8 @@ public function buildQuickForm() {
       CRM_Contact_Form_Edit_Website::buildQuickForm($this, $blockId, TRUE);
     }
 
+    $this->addFormRule(array('CRM_Contact_Form_Inline_Website', 'formRule'), $this);
+
   }
 
   /**
@@ -128,4 +130,38 @@ public function postProcess() {
     $this->response();
   }
 
+  /**
+   * Global validation rules for the form.
+   *
+   * @param array $fields
+   *   Posted values of the form.
+   * @param array $errors
+   *   List of errors to be posted back to the form.
+   * @param CRM_Contact_Form_Inline_Website $form
+   *
+   * @return array
+   */
+  public static function formRule($fields, $errors, $form) {
+    $hasData = $errors = array();
+    if (!empty($fields['website']) && is_array($fields['website'])) {
+      $types = array();
+      foreach ($fields['website'] as $instance => $blockValues) {
+        $dataExists = CRM_Contact_Form_Contact::blockDataExists($blockValues);
+
+        if ($dataExists) {
+          $hasData[] = $instance;
+          if (!empty($blockValues['website_type_id'])) {
+            if (empty($types[$blockValues['website_type_id']])) {
+              $types[$blockValues['website_type_id']] = $blockValues['website_type_id'];
+            }
+            else {
+              $errors["website[" . $instance . "][website_type_id]"] = ts('Contacts may only have one website of each type at most.');
+            }
+          }
+        }
+      }
+    }
+    return $errors;
+  }
+
 }