diff --git a/article_netmgr.cc b/article_netmgr.cc
index f0f00119..7498b4a9 100644
--- a/article_netmgr.cc
+++ b/article_netmgr.cc
@@ -200,7 +200,7 @@ QNetworkReply * ArticleNetworkAccessManager::getArticleReply( QNetworkRequest co
     QUrl refererUrl = QUrl::fromEncoded( referer );
 
     if ( !url.host().endsWith( refererUrl.host() ) &&
-         getHostBaseFromUrl( url ) != getHostBaseFromUrl( refererUrl ) && !url.scheme().startsWith("data") )
+        Utils::Url::getHostBaseFromUrl( url ) != Utils::Url::getHostBaseFromUrl( refererUrl ) && !url.scheme().startsWith("data") )
     {
       gdWarning( "Blocking element \"%s\" due to not same domain", url.toEncoded().data() );
 
diff --git a/globalbroadcaster.cpp b/globalbroadcaster.cpp
index f473ca0f..4f84f714 100644
--- a/globalbroadcaster.cpp
+++ b/globalbroadcaster.cpp
@@ -28,13 +28,13 @@ Config::Preferences * GlobalBroadcaster::getPreference()
 
 void GlobalBroadcaster::addWhitelist( QString url )
 {
-  whitelist.push_back( url );
-  auto baseUrl = ::getHostBase( url );
-  whitelist.push_back( baseUrl );
+  whitelist.insert( url );
+  auto baseUrl = Utils::Url::getHostBase( url );
+  whitelist.insert( baseUrl );
 }
 
 bool GlobalBroadcaster::existedInWhitelist( QString url )
 {
-  return std::find( whitelist.begin(), whitelist.end(), url ) != whitelist.end();
+  return whitelist.contains(url);
 }
 // namespace global
diff --git a/globalbroadcaster.h b/globalbroadcaster.h
index daf627b7..20b44aea 100644
--- a/globalbroadcaster.h
+++ b/globalbroadcaster.h
@@ -16,7 +16,7 @@ class GlobalBroadcaster : public QObject
   Q_OBJECT
 private:
   Config::Preferences * preference;
-  std::vector<QString> whitelist;
+  QSet<QString> whitelist;
 
 public:
   void setPreference( Config::Preferences * _pre );
diff --git a/utils.cc b/utils.cc
index 928becee..37181c4a 100644
--- a/utils.cc
+++ b/utils.cc
@@ -5,3 +5,11 @@ QString Utils::Path::combine(const QString& path1, const QString& path2)
 {
   return QDir::cleanPath(path1 + QDir::separator() + path2);
 }
+
+QString Utils::Url::getSchemeAndHost( QUrl const & url )
+{
+  auto _url = url.url();
+  auto index = _url.indexOf("://");
+  auto hostEndIndex = _url.indexOf("/",index+3);
+  return _url.mid(0,hostEndIndex);
+}
diff --git a/utils.hh b/utils.hh
index e8cf5fe8..d5ce3a82 100644
--- a/utils.hh
+++ b/utils.hh
@@ -272,16 +272,6 @@ inline bool isAudioUrl( QUrl const & url )
          && ( Filetype::isNameOfSound( url.path().toUtf8().data() ) || url.host() == "apifree.forvo.com" );
 }
 
-}
-
-namespace Path{
-QString combine(const QString& path1, const QString& path2);
-}
-
-}
-
-namespace
-{
 /// Uses some heuristics to chop off the first domain name from the host name,
 /// but only if it's not too base. Returns the resulting host name.
 inline QString getHostBase( QString const & host )
@@ -315,8 +305,15 @@ inline QString getHostBaseFromUrl( QUrl const & url )
 
   return getHostBase( host );
 }
+
+QString getSchemeAndHost( QUrl const & url );
+
 }
 
+namespace Path{
+QString combine(const QString& path1, const QString& path2);
+}
 
+}
 
 #endif // UTILS_HH
diff --git a/weburlrequestinterceptor.cpp b/weburlrequestinterceptor.cpp
index 412532e9..faea2c06 100644
--- a/weburlrequestinterceptor.cpp
+++ b/weburlrequestinterceptor.cpp
@@ -15,7 +15,7 @@ void WebUrlRequestInterceptor::interceptRequest( QWebEngineUrlRequestInfo &info)
     if(info.requestUrl().scheme()=="file"){
       return;
     }
-    auto hostBase = getHostBase( info.requestUrl().host() );
+    auto hostBase = Utils::Url::getHostBase( info.requestUrl().host() );
     if( GlobalBroadcaster::instance()->existedInWhitelist( hostBase ) )
     {
       //whitelist url does not block