diff --git a/htroot/yacy/crawlReceipt.java b/htroot/yacy/crawlReceipt.java
index eaf825ce0..4e3ace6f8 100644
--- a/htroot/yacy/crawlReceipt.java
+++ b/htroot/yacy/crawlReceipt.java
@@ -110,9 +110,15 @@ public final class crawlReceipt {
            stale       - the resource was reloaded but not processed because source had no changes
 
         */
-        
+
         final yacySeed otherPeer = yacyCore.seedDB.get(iam);
-        final String otherPeerName = iam + ":" + ((otherPeer == null) ? "NULL" : (otherPeer.getName() + "/" + otherPeer.getVersion()));        
+        if (otherPeer == null) {
+            prop.put("delay", "3600");
+            return prop;
+        } else {
+            otherPeer.setLastSeenUTC();
+        }
+        final String otherPeerName = iam + ":" + otherPeer.getName() + "/" + otherPeer.getVersion();
 
         if ((yacyCore.seedDB.mySeed() == null) || (!(yacyCore.seedDB.mySeed().hash.equals(youare)))) {
             // no yacy connection / unknown peers
diff --git a/htroot/yacy/query.java b/htroot/yacy/query.java
index b25d9e249..22b65c729 100644
--- a/htroot/yacy/query.java
+++ b/htroot/yacy/query.java
@@ -53,6 +53,7 @@ import de.anomic.server.serverObjects;
 import de.anomic.server.serverSwitch;
 import de.anomic.yacy.yacyCore;
 import de.anomic.yacy.yacyNetwork;
+import de.anomic.yacy.yacySeed;
 
 public final class query {
 
@@ -79,12 +80,20 @@ public final class query {
                   
 //      System.out.println("YACYQUERY: RECEIVED POST = " + ((post == null) ? "NULL" : post.toString()));
 
-//      final String iam    = post.get("iam", "");    // complete seed of the requesting peer
+        final String iam    = post.get("iam", "");    // complete seed of the requesting peer
         final String youare = post.get("youare", ""); // seed hash of the target peer, used for testing network stability
 //      final String key    = post.get("key", "");    // transmission key for response
         final String obj    = post.get("object", ""); // keyword for query subject
         final String env    = post.get("env", "");    // argument to query
 
+        final yacySeed otherPeer = yacyCore.seedDB.get(iam);
+        if (otherPeer == null) {
+            prop.put("response", "0");
+            return prop;
+        } else {
+            otherPeer.setLastSeenUTC();
+        }
+
         prop.put("mytime", serverDate.formatShortSecond());
 
         // check if we are the right target and requester has correct information about this peer
diff --git a/htroot/yacy/search.java b/htroot/yacy/search.java
index 0166add75..4160a2117 100644
--- a/htroot/yacy/search.java
+++ b/htroot/yacy/search.java
@@ -71,6 +71,16 @@ public final class search {
         final String  oseed  = post.get("myseed", ""); // complete seed of the requesting peer
 //      final String  youare = post.get("youare", ""); // seed hash of the target peer, used for testing network stability
         final String  key    = post.get("key", "");    // transmission key for response
+
+        final yacySeed otherPeer = yacySeed.genRemoteSeed(oseed, key, false);
+        if (otherPeer == null) {
+            prop.put("links", "");
+            prop.put("linkcount", "0");
+            prop.put("references", "");
+            return prop;
+        }
+        otherPeer.setLastSeenUTC();
+
         final String  query  = post.get("query", "");  // a string of word hashes that shall be searched and combined
         final String  exclude= post.get("exclude", "");// a string of word hashes that shall not be within the search result
         String  urls   = post.get("urls", "");         // a string of url hashes that are preselected for the search: no other may be returned
diff --git a/htroot/yacy/transfer.java b/htroot/yacy/transfer.java
index 499218c3c..7f13dbc3f 100644
--- a/htroot/yacy/transfer.java
+++ b/htroot/yacy/transfer.java
@@ -81,13 +81,14 @@ public final class transfer {
         prop.put("process_path", "");
         prop.put("process_maxsize", "0");
 
-        if (sb.isRobinsonMode() || !sb.rankingOn) {
-        	// in a robinson environment, do not answer. We do not do any transfer in a robinson cluster.
-        	return prop;
+        final yacySeed otherseed = yacyCore.seedDB.get(otherpeer);
+        if (otherseed == null || sb.isRobinsonMode() || !sb.rankingOn) {
+            // in a robinson environment, do not answer. We do not do any transfer in a robinson cluster.
+            return prop;
         }
+        otherseed.setLastSeenUTC();
 
-        yacySeed otherseed = yacyCore.seedDB.get(otherpeer);
-        if ((otherseed == null) || (filename.indexOf("..") >= 0)) {
+        if (filename.indexOf("..") >= 0) {
             // reject unknown peers: this does not appear fair, but anonymous senders are dangerous
             // reject paths that contain '..' because they are dangerous
             if (otherseed == null) sb.getLog().logFine("RankingTransmission: rejected unknown peer '" + otherpeer + "', current IP " + header.get("CLIENTIP", "unknown"));
diff --git a/htroot/yacy/transferRWI.java b/htroot/yacy/transferRWI.java
index 15ba2d4a8..2e796afb9 100644
--- a/htroot/yacy/transferRWI.java
+++ b/htroot/yacy/transferRWI.java
@@ -87,9 +87,18 @@ public final class transferRWI {
         boolean blockBlacklist = sb.getConfig("indexReceiveBlockBlacklist", "false").equals("true");
         boolean checkLimit    = sb.getConfigBool("indexDistribution.transferRWIReceiptLimitEnabled", true);
         final long cachelimit = sb.getConfigLong("indexDistribution.dhtReceiptLimit", 10000);
+
         final yacySeed otherPeer = yacyCore.seedDB.get(iam);
-        final String otherPeerName = iam + ":" + ((otherPeer == null) ? "NULL" : (otherPeer.getName() + "/" + otherPeer.getVersion()));                
-        
+        if (otherPeer == null) {
+            prop.put("unknownURL", "");
+            prop.put("result", "busy");
+            prop.put("pause", "120000");
+            return prop;
+        } else {
+            otherPeer.setLastSeenUTC();
+        }
+        final String otherPeerName = iam + ":" + otherPeer.getName() + "/" + otherPeer.getVersion();
+
         // response values
         String       result      = "ok";
         StringBuffer unknownURLs = new StringBuffer();
diff --git a/htroot/yacy/transferURL.java b/htroot/yacy/transferURL.java
index 6708b9e8e..07f2f25ff 100644
--- a/htroot/yacy/transferURL.java
+++ b/htroot/yacy/transferURL.java
@@ -82,13 +82,20 @@ public final class transferURL {
         final boolean granted = sb.getConfig("allowReceiveIndex", "false").equals("true");
         final boolean blockBlacklist = sb.getConfig("indexReceiveBlockBlacklist", "false").equals("true");
 
+        final yacySeed otherPeer = yacyCore.seedDB.get(iam);
+        if (otherPeer == null) {
+            prop.put("result", "error_not_granted");
+            prop.put("pause", "120000");
+            return prop;
+        } else {
+            otherPeer.setLastSeenUTC();
+        }
+        final String otherPeerName = iam + ":" + otherPeer.getName() + "/" + otherPeer.getVersion();
+
         // response values
         String result = "";
         String doublevalues = "0";
 
-        final yacySeed otherPeer = yacyCore.seedDB.get(iam);
-        final String otherPeerName = iam + ":" + ((otherPeer == null) ? "NULL" : (otherPeer.getName() + "/" + otherPeer.getVersion()));
-
         if ((youare == null) || (!youare.equals(yacyCore.seedDB.mySeed().hash))) {
         	sb.getLog().logInfo("Rejecting URLs from peer " + otherPeerName + ". Wrong target. Wanted peer=" + youare + ", iam=" + yacyCore.seedDB.mySeed().hash);
             result = "wrong_target";