diff --git a/source/net/yacy/peers/Protocol.java b/source/net/yacy/peers/Protocol.java
index 88b3ddf5f..0eeb23863 100644
--- a/source/net/yacy/peers/Protocol.java
+++ b/source/net/yacy/peers/Protocol.java
@@ -62,6 +62,7 @@ import java.util.concurrent.atomic.AtomicInteger;
 import net.yacy.migration;
 import net.yacy.cora.date.GenericFormatter;
 import net.yacy.cora.document.analysis.Classification;
+import net.yacy.cora.document.analysis.Classification.ContentDomain;
 import net.yacy.cora.document.encoding.ASCII;
 import net.yacy.cora.document.encoding.UTF8;
 import net.yacy.cora.document.feed.RSSFeed;
@@ -559,7 +560,7 @@ public final class Protocol {
         final String wordhashes,
         final String excludehashes,
         final String language,
-        final String contentdom,
+        final ContentDomain contentdom,
         final int count,
         final long time,
         final int maxDistance,
@@ -653,7 +654,7 @@ public final class Protocol {
         final SearchEvent event,
         final String wordhashes,
         final String urlhashes,
-        final String contentdom,
+        final ContentDomain contentdom,
         final int count,
         final long time,
         final int maxDistance,
@@ -848,7 +849,7 @@ public final class Protocol {
             final String excludehashes,
             final String urlhashes,
             final String language,
-            final String contentdom,
+            final ContentDomain contentdom,
             final int count,
             final long time,
             final int maxDistance,
@@ -900,8 +901,9 @@ public final class Protocol {
             parts.put("modifier", UTF8.StringBody(event.query.modifier.toString()));
             parts.put("language", UTF8.StringBody(language));
             parts.put("sitehash", UTF8.StringBody(event.query.modifier.sitehash));
+            //parts.put("sitehost", UTF8.StringBody(event.query.modifier.sitehost));
             parts.put("author", UTF8.StringBody(event.query.modifier.author));
-            parts.put("contentdom", UTF8.StringBody(contentdom));
+            parts.put("contentdom", UTF8.StringBody(contentdom == null ? ContentDomain.ALL.toString() : contentdom.toString()));
             parts.put("ttl", UTF8.StringBody("0"));
             parts.put("maxdist", UTF8.StringBody(Integer.toString(maxDistance)));
             parts.put("profile", UTF8.StringBody(crypt.simpleEncode(event.query.ranking.toExternalString())));
diff --git a/source/net/yacy/peers/RemoteSearch.java b/source/net/yacy/peers/RemoteSearch.java
index 728b4a5af..fd4017a74 100644
--- a/source/net/yacy/peers/RemoteSearch.java
+++ b/source/net/yacy/peers/RemoteSearch.java
@@ -34,6 +34,7 @@ import java.util.SortedMap;
 
 import org.apache.solr.client.solrj.SolrQuery;
 
+import net.yacy.cora.document.analysis.Classification.ContentDomain;
 import net.yacy.cora.document.encoding.ASCII;
 import net.yacy.cora.storage.HandleSet;
 import net.yacy.cora.util.ConcurrentLog;
@@ -53,7 +54,8 @@ public class RemoteSearch extends Thread {
     public static final ConcurrentLog log = new ConcurrentLog("DHT");
     
     final private SearchEvent event;
-    final private String wordhashes, excludehashes, contentdom;
+    final private String wordhashes, excludehashes;
+    final private ContentDomain contentdom;
     final private int partitions;
     final private SecondarySearchSuperviser secondarySearchSuperviser;
     final private Blacklist blacklist;
@@ -68,7 +70,7 @@ public class RemoteSearch extends Thread {
               final String wordhashes,
               final String excludehashes,
               final String language,
-              final String contentdom,
+              final ContentDomain contentdom,
               final int count,
               final long time,
               final int maxDistance,
@@ -228,7 +230,7 @@ public class RemoteSearch extends Thread {
                         QueryParams.hashSet2hashString(event.query.getQueryGoal().getIncludeHashes()),
                         QueryParams.hashSet2hashString(event.query.getQueryGoal().getExcludeHashes()),
                         event.query.targetlang == null ? "" : event.query.targetlang,
-                        event.query.contentdom == null ? "all" : event.query.contentdom.toString(),
+                        event.query.contentdom == null ? ContentDomain.ALL : event.query.contentdom,
                         count,
                         time,
                         event.query.maxDistance,
@@ -273,7 +275,7 @@ public class RemoteSearch extends Thread {
                                 event,
                                 QueryParams.hashSet2hashString(wordhashes),
                                 urlhashes,
-                                "all",
+                                ContentDomain.ALL,
                                 20,
                                 time,
                                 999,