diff --git a/htroot/Crawler_p.java b/htroot/Crawler_p.java
index dcb21c0d2..411a32752 100644
--- a/htroot/Crawler_p.java
+++ b/htroot/Crawler_p.java
@@ -178,8 +178,7 @@ public class Crawler_p {
                     // add the prefix http:// if necessary
                     int pos = crawlingStart.indexOf("://",0);
                     if (pos == -1) {
-                        if (crawlingStart.startsWith("www")) crawlingStart = "http://" + crawlingStart;
-                        if (crawlingStart.startsWith("ftp")) crawlingStart = "ftp://" + crawlingStart;
+                        if (crawlingStart.startsWith("ftp")) crawlingStart = "ftp://" + crawlingStart; else crawlingStart = "http://" + crawlingStart;
                     }
                     try {
                         DigestURI crawlingStartURL = new DigestURI(crawlingStart);
diff --git a/htroot/HostBrowser.java b/htroot/HostBrowser.java
index 9d43b68d7..e1d2f169d 100644
--- a/htroot/HostBrowser.java
+++ b/htroot/HostBrowser.java
@@ -282,7 +282,7 @@ public class HostBrowser {
                 Map<String, ReversibleScoreMap<String>> outboundHosts = new HashMap<String, ReversibleScoreMap<String>>();
                 Map<String, InfoCacheEntry> infoCache = new HashMap<String, InfoCacheEntry>();
                 int hostsize = 0;
-                final List<byte[]> deleteIDs = new ArrayList<byte[]>();
+                final List<String> deleteIDs = new ArrayList<String>();
                 long timeout = System.currentTimeMillis() + TIMEOUT;
                 while ((doc = docs.take()) != AbstractSolrConnector.POISON_DOCUMENT) {
                     String u = (String) doc.getFieldValue(CollectionSchema.sku.getSolrFieldName());
@@ -292,7 +292,7 @@ public class HostBrowser {
                     infoCache.put(ids, new InfoCacheEntry(doc));
                     if (u.startsWith(path)) {
                         if (delete) {
-                            deleteIDs.add(ASCII.getBytes(ids));
+                            deleteIDs.add(ids);
                         } else {
                             if (error == null) storedDocs.add(u); else if (admin) errorDocs.put(u, error);
                         }
@@ -328,10 +328,7 @@ public class HostBrowser {
                     }
                     if (System.currentTimeMillis() > timeout) break;
                 }
-                if (deleteIDs.size() > 0) {
-                    for (byte[] b: deleteIDs) sb.crawlQueues.urlRemove(b);
-                    sb.index.fulltext().remove(deleteIDs, true);
-                }
+                if (deleteIDs.size() > 0) sb.remove(deleteIDs);
                 
                 // collect from crawler
                 List<Request> domainStackReferences = (admin) ? sb.crawlQueues.noticeURL.getDomainStackReferences(StackType.LOCAL, host, 1000, 3000) : new ArrayList<Request>(0);
diff --git a/htroot/IndexDeletion_p.java b/htroot/IndexDeletion_p.java
index 68d19af5e..d886191b2 100644
--- a/htroot/IndexDeletion_p.java
+++ b/htroot/IndexDeletion_p.java
@@ -45,7 +45,7 @@ import net.yacy.server.serverSwitch;
 
 public class IndexDeletion_p {
 
-    public static serverObjects respond(final RequestHeader header, final serverObjects post, final serverSwitch env) {
+    public static serverObjects respond(@SuppressWarnings("unused") final RequestHeader header, final serverObjects post, final serverSwitch env) {
         // return variable that accumulates replacements
         final Switchboard sb = (Switchboard) env;
         final serverObjects prop = new serverObjects();
@@ -126,8 +126,7 @@ public class IndexDeletion_p {
                     if (urlStub == null || urlStub.length() == 0) continue;
                     int pos = urlStub.indexOf("://",0);
                     if (pos == -1) {
-                        if (urlStub.startsWith("www")) urlStub = "http://" + urlStub;
-                        if (urlStub.startsWith("ftp")) urlStub = "ftp://" + urlStub;
+                        if (urlStub.startsWith("ftp")) urlStub = "ftp://" + urlStub; else urlStub = "http://" + urlStub;
                     }
                     try {
                         DigestURI u = new DigestURI(urlStub);
@@ -140,7 +139,6 @@ public class IndexDeletion_p {
                             }
                         } catch (InterruptedException e) {
                         }
-                        sb.tables.recordAPICall(post, "IndexDeletion_p.html", WorkTables.TABLE_API_TYPE_DELETION, "deletion, docs matching with " + urldelete);
                     } catch (MalformedURLException e) {}
                 }
                 
@@ -148,11 +146,8 @@ public class IndexDeletion_p {
                     count = ids.size();
                     prop.put("urldelete-active", count == 0 ? 2 : 1);
                 } else {
-                    try {
-                        defaultConnector.deleteByIds(ids);
-                        //webgraphConnector.deleteByQuery(webgraphQuery);
-                    } catch (IOException e) {
-                    }
+                    sb.remove(ids);
+                    sb.tables.recordAPICall(post, "IndexDeletion_p.html", WorkTables.TABLE_API_TYPE_DELETION, "deletion, docs matching with " + urldelete);
                     prop.put("urldelete-active", 2);
                 }
             } else {
diff --git a/htroot/PerformanceMemory_p.java b/htroot/PerformanceMemory_p.java
index 6c05a438a..357f4d666 100644
--- a/htroot/PerformanceMemory_p.java
+++ b/htroot/PerformanceMemory_p.java
@@ -30,7 +30,6 @@ import java.util.ConcurrentModificationException;
 import java.util.Iterator;
 import java.util.Map;
 
-import net.yacy.cora.federate.solr.connector.CachedSolrConnector;
 import net.yacy.cora.protocol.Domains;
 import net.yacy.cora.protocol.RequestHeader;
 import net.yacy.kelondro.index.Cache;
diff --git a/source/net/yacy/search/Switchboard.java b/source/net/yacy/search/Switchboard.java
index 1134e48ff..f658e512a 100644
--- a/source/net/yacy/search/Switchboard.java
+++ b/source/net/yacy/search/Switchboard.java
@@ -2800,6 +2800,18 @@ public final class Switchboard extends serverSwitch {
         }
     }
 
+    public void remove(final Collection<String> deleteIDs) {
+        this.index.fulltext().remove(deleteIDs);
+        for (String id: deleteIDs) {
+            this.crawlQueues.urlRemove(ASCII.getBytes(id));
+        }
+    }
+    
+    public void remove(final byte[] urlhash) {
+        this.index.fulltext().remove(urlhash);
+        this.crawlQueues.urlRemove(urlhash);
+    }
+
     public void stackURLs(Set<DigestURI> rootURLs, final CrawlProfile profile, final Set<DigestURI> successurls, final Map<DigestURI,String> failurls) {
         if (rootURLs == null || rootURLs.size() == 0) return;
         List<Thread> stackthreads = new ArrayList<Thread>(); // do this concurrently
@@ -2831,9 +2843,7 @@ public final class Switchboard extends serverSwitch {
 
         // remove url from the index to be prepared for a re-crawl
         final byte[] urlhash = url.hash();
-        this.index.fulltext().remove(urlhash);
-        this.crawlQueues.noticeURL.removeByURLHash(urlhash);
-        this.crawlQueues.errorURL.remove(urlhash);
+        remove(urlhash);
         
         // special handling of ftp protocol
         if (url.isFTP()) {
diff --git a/source/net/yacy/search/index/Fulltext.java b/source/net/yacy/search/index/Fulltext.java
index eac2a7e6f..d3a5fdec5 100644
--- a/source/net/yacy/search/index/Fulltext.java
+++ b/source/net/yacy/search/index/Fulltext.java
@@ -685,37 +685,32 @@ public final class Fulltext {
      * @param deleteIDs a list of urlhashes; each denoting a document
      * @param concurrently if true, then the method returnes immediately and runs concurrently
      */
-    public void remove(final List<byte[]> deleteIDs, final boolean concurrently) {
+    public void remove(final Collection<String> deleteIDs) {
         if (deleteIDs == null || deleteIDs.size() == 0) return;
-        Thread t = new Thread() {
-            public void run() {
-                try {
-                    synchronized (Fulltext.this.solrInstances) {
-                        for (byte[] urlHash: deleteIDs) {
-                            Fulltext.this.getDefaultConnector().deleteById(ASCII.String(urlHash));
-                            Fulltext.this.getWebgraphConnector().deleteByQuery(WebgraphSchema.source_id_s.getSolrFieldName() + ":\"" + ASCII.String(urlHash) + "\"");
-                        }
-                        Fulltext.this.commit(true);
-                    }
-                } catch (final Throwable e) {
-                    Log.logException(e);
-                }
-                if (Fulltext.this.urlIndexFile != null) try {
-                    for (byte[] urlHash: deleteIDs) {
-                        final Row.Entry r = Fulltext.this.urlIndexFile.remove(urlHash);
-                        if (r != null) Fulltext.this.statsDump = null;
-                    }
-                } catch (final IOException e) {}
-        }};
-        if (concurrently) t.start(); else t.run();
+        try {
+            synchronized (Fulltext.this.solrInstances) {
+                this.getDefaultConnector().deleteByIds(deleteIDs);
+                this.getWebgraphConnector().deleteByIds(deleteIDs);
+                this.commit(true);
+            }
+        } catch (final Throwable e) {
+            Log.logException(e);
+        }
+        if (Fulltext.this.urlIndexFile != null) try {
+            for (String id: deleteIDs) {
+                final Row.Entry r = Fulltext.this.urlIndexFile.remove(ASCII.getBytes(id));
+                if (r != null) Fulltext.this.statsDump = null;
+            }
+        } catch (final IOException e) {}
     }
     
     public boolean remove(final byte[] urlHash) {
         if (urlHash == null) return false;
         try {
+            String id = ASCII.String(urlHash);
             synchronized (this.solrInstances) {
-                this.getDefaultConnector().deleteById(ASCII.String(urlHash));
-                this.getWebgraphConnector().deleteByQuery(WebgraphSchema.source_id_s.getSolrFieldName() + ":\"" + ASCII.String(urlHash) + "\"");
+                this.getDefaultConnector().deleteById(id);
+                this.getWebgraphConnector().deleteById(id);
             }
         } catch (final Throwable e) {
             Log.logException(e);
diff --git a/source/net/yacy/search/index/Segment.java b/source/net/yacy/search/index/Segment.java
index 4e5d662c5..f8c451e02 100644
--- a/source/net/yacy/search/index/Segment.java
+++ b/source/net/yacy/search/index/Segment.java
@@ -136,6 +136,10 @@ public class Segment {
         this.writeWebgraph = check;
     }
     
+    public boolean writeToWebgraph() {
+        return this.writeWebgraph;
+    }
+    
     public boolean connectedRWI() {
         return this.termIndex != null;
     }