diff --git a/htroot/env/grafics/usecase_freeworld.png b/htroot/env/grafics/usecase_freeworld.png
index b8c34c90c..bbfad827e 100644
Binary files a/htroot/env/grafics/usecase_freeworld.png and b/htroot/env/grafics/usecase_freeworld.png differ
diff --git a/htroot/env/grafics/usecase_intranet.png b/htroot/env/grafics/usecase_intranet.png
index 3e44e062f..7911ec278 100644
Binary files a/htroot/env/grafics/usecase_intranet.png and b/htroot/env/grafics/usecase_intranet.png differ
diff --git a/htroot/env/grafics/usecase_webportal.png b/htroot/env/grafics/usecase_webportal.png
index fc874bf74..d49e610c9 100644
Binary files a/htroot/env/grafics/usecase_webportal.png and b/htroot/env/grafics/usecase_webportal.png differ
diff --git a/source/de/anomic/http/httpd.java b/source/de/anomic/http/httpd.java
index 54f423a1b..705046028 100644
--- a/source/de/anomic/http/httpd.java
+++ b/source/de/anomic/http/httpd.java
@@ -198,7 +198,7 @@ public final class httpd implements serverHandler {
         this.clientIP = this.userAddress.getHostAddress();
         if (this.userAddress.isAnyLocalAddress()) this.clientIP = "localhost";
         if (this.clientIP.startsWith("0:0:0:0:0:0:0:1")) this.clientIP = "localhost";
-        if (this.clientIP.equals("127.0.0.1")) this.clientIP = "localhost";
+        if (this.clientIP.startsWith("127.")) this.clientIP = "localhost";
         final String proxyClient = switchboard.getConfig("proxyClient", "*");
         final String serverClient = switchboard.getConfig("serverClient", "*");
 
diff --git a/source/de/anomic/icap/icapd.java b/source/de/anomic/icap/icapd.java
index 9c1f7f808..17021566c 100644
--- a/source/de/anomic/icap/icapd.java
+++ b/source/de/anomic/icap/icapd.java
@@ -115,7 +115,7 @@ public class icapd implements serverHandler {
         this.clientIP = this.userAddress.getHostAddress();
         if (this.userAddress.isAnyLocalAddress()) this.clientIP = "localhost";
         if (this.clientIP.startsWith("0:0:0:0:0:0:0:1")) this.clientIP = "localhost";
-        if (this.clientIP.equals("127.0.0.1")) this.clientIP = "localhost";
+        if (this.clientIP.startsWith("127.")) this.clientIP = "localhost";
     }
     
     public String greeting() {
diff --git a/source/de/anomic/server/serverCore.java b/source/de/anomic/server/serverCore.java
index 25356234c..1099f5789 100644
--- a/source/de/anomic/server/serverCore.java
+++ b/source/de/anomic/server/serverCore.java
@@ -201,7 +201,7 @@ public final class serverCore extends serverAbstractBusyThread implements server
     }
     
     public static final boolean isLocalhost(String hostname) {
-        return hostname.equals("localhost") || hostname.equals("127.0.0.1") || hostname.startsWith("0:0:0:0:0:0:0:1");
+        return hostname.equals("localhost") || hostname.startsWith("127.") || hostname.startsWith("0:0:0:0:0:0:0:1");
     }
 
     // class initializer
diff --git a/source/de/anomic/yacy/yacySeed.java b/source/de/anomic/yacy/yacySeed.java
index 6ec6747b2..9a1393ea1 100644
--- a/source/de/anomic/yacy/yacySeed.java
+++ b/source/de/anomic/yacy/yacySeed.java
@@ -860,16 +860,16 @@ public class yacySeed {
         if (ip == null) return "IP is null";
         if (ip.length() < 8) return "IP is too short: " + ip;
         if (!natLib.isProper(ip)) return "IP is not proper: " + ip; //this does not work with staticIP
-        if (ip.equals("localhost") || ip.equals("127.0.0.1") || (ip.startsWith("0:0:0:0:0:0:0:1"))) return "IP for localhost rejected";
+        if (ip.equals("localhost") || ip.startsWith("127.") || (ip.startsWith("0:0:0:0:0:0:0:1"))) return "IP for localhost rejected";
         
         // seedURL
         final String seedURL = this.dna.get(SEEDLIST);
         if (seedURL != null && seedURL.length() > 0) {
-            if (!seedURL.startsWith("http://") && !seedURL.startsWith("http://")) return "wrong protocol for seedURL";
+            if (!seedURL.startsWith("http://") && !seedURL.startsWith("https://")) return "wrong protocol for seedURL";
             try {
                 URL url = new URL(seedURL);
                 String host = url.getHost();
-                if (host.equals("localhost") || host.equals("127.0.0.1") || (host.startsWith("0:0:0:0:0:0:0:1"))) return "seedURL in localhost rejected";
+                if (host.equals("localhost") || host.startsWith("127.") || (host.startsWith("0:0:0:0:0:0:0:1"))) return "seedURL in localhost rejected";
             } catch (MalformedURLException e) {
                 return "seedURL malformed";
             }
diff --git a/source/de/anomic/yacy/yacyURL.java b/source/de/anomic/yacy/yacyURL.java
index f754a5a87..a22e1eb6b 100644
--- a/source/de/anomic/yacy/yacyURL.java
+++ b/source/de/anomic/yacy/yacyURL.java
@@ -762,7 +762,7 @@ public class yacyURL implements Serializable {
     // checks for local/global IP range and local IP
     public boolean isLocal() {
         if (this.hash == null) {
-            if (this.host.startsWith("0:0:0:0:0:0:0:1") || this.host.equals("127.0.0.1") || this.host.equals("localhost")) return true;
+            if (this.host.startsWith("0:0:0:0:0:0:0:1") || this.host.startsWith("127.") || this.host.equals("localhost")) return true;
             synchronized (this) {
                 this.hash = urlHashComputation();
             }