diff --git a/ss2013/1_Web Mining/Uebungen/2_Uebung/crawler.py b/ss2013/1_Web Mining/Uebungen/2_Uebung/crawler.py
index 2faa2d2a..939d4f3f 100644
--- a/ss2013/1_Web Mining/Uebungen/2_Uebung/crawler.py	
+++ b/ss2013/1_Web Mining/Uebungen/2_Uebung/crawler.py	
@@ -34,15 +34,22 @@ extractor = URLLister()
 extractor.feed(page.read())
 
 i = 1
+numberOfSites = 1000
+lastHost = ""
 # crawl 100 sites...
-while(i <= 100): 
+while(i <= numberOfSites):
+    # get random url from queue
     url = random.choice(extractor.urls)
-    ## remove url from queue
-    extractor.urls.remove(url)
-    print "currently visited url: "+url
-    page = urllib.urlopen(url)
-    extractor.feed(page.read())
-    i = i + 1
+    
+    # check if lastHost == currentHost
+    if urlparse(url).netloc != urlparse(lastHost).netloc:
+        ## remove url from queue
+        extractor.urls.remove(url)
+        print "("+str(i)+"/"+str(numberOfSites)+") currently visited url: "+url
+        page = urllib.urlopen(url)
+        extractor.feed(page.read())
+        i = i + 1
+        lastHost = url
 
 
 extractor.close()