diff --git a/app/Helpers/utils.php b/app/Helpers/utils.php
index 01ea031..7892505 100644
--- a/app/Helpers/utils.php
+++ b/app/Helpers/utils.php
@@ -1,7 +1,7 @@
 <?php
 /**
-* Get an associative array with localeCodes as keys and translated URLs of current page as value
-*/
+ * Get an associative array with localeCodes as keys and translated URLs of current page as value
+ */
 function getLocalizedURLArray()
 {
     $localesOrdered = LaravelLocalization::getLocalesOrder();
@@ -11,3 +11,18 @@ function getLocalizedURLArray()
     }
     return $localizedURLs;
 }
+
+function get_domain($host)
+{
+    $myhost = strtolower(trim($host));
+    $count = substr_count($myhost, '.');
+    if ($count === 2) {
+        if (strlen(explode('.', $myhost)[1]) > 3) {
+            $myhost = explode('.', $myhost, 2)[1];
+        }
+
+    } else if ($count > 2) {
+        $myhost = get_domain(explode('.', $myhost, 2)[1]);
+    }
+    return $myhost;
+}
diff --git a/routes/web.php b/routes/web.php
index 35d4c5a..b590567 100644
--- a/routes/web.php
+++ b/routes/web.php
@@ -16,17 +16,6 @@ use Illuminate\Support\Facades\Route;
 $base_domain = config('app.url');
 $alias_domain = config('app.alias_url');
 
-function get_domain($host){
-    $myhost = strtolower(trim($host));
-    $count = substr_count($myhost, '.');
-    if($count === 2){
-      if(strlen(explode('.', $myhost)[1]) > 3) $myhost = explode('.', $myhost, 2)[1];
-    } else if($count > 2){
-      $myhost = get_domain(explode('.', $myhost, 2)[1]);
-    }
-    return $myhost;
-  }
-
 Route::group([
     'domain' => 'doi.' . get_domain($base_domain),
     'as' => 'doi'