diff --git a/plugin/WWBNIndex/ajax.php b/plugin/WWBNIndex/ajax.php
index 5dae8aeb7f..722fb7a776 100644
--- a/plugin/WWBNIndex/ajax.php
+++ b/plugin/WWBNIndex/ajax.php
@@ -18,7 +18,7 @@ $platformID = getPlatformId();
 
 $r = $_POST;
 
-if ($wwbnIndex->check_site_availability($_SERVER['HTTP_HOST']) != 200) {
+if (empty($_SERVER['SERVER_NAME']) || $_SERVER['SERVER_NAME'] === 'localhost' || filter_var($_SERVER['SERVER_NAME'], FILTER_VALIDATE_IP) || $wwbnIndex->check_site_availability($_SERVER['HTTP_HOST']) != 200) {
     echo json_encode(array("error" => true, "title" => "Site not accessible", "message" => "Please make sure your site is viewable in public.")); die();
 }
 
diff --git a/plugin/WWBNIndex/submitIndex.php b/plugin/WWBNIndex/submitIndex.php
index e6cd22eee7..bec192e210 100644
--- a/plugin/WWBNIndex/submitIndex.php
+++ b/plugin/WWBNIndex/submitIndex.php
@@ -10,7 +10,7 @@ $wwbnIndex = new WWBNIndex();
 //     return false;
 // }
 
-if ($wwbnIndex->check_site_availability($_SERVER['HTTP_HOST']) == 200) {
+if (!empty($_SERVER['SERVER_NAME']) && $_SERVER['SERVER_NAME'] !== 'localhost' && !filter_var($_SERVER['SERVER_NAME'], FILTER_VALIDATE_IP) && $wwbnIndex->check_site_availability($_SERVER['HTTP_HOST']) == 200) {
 
     $data = array(
         "apiName"           => "submitIndexUponInstall",