diff --git a/crawler/crawler.py b/crawler/crawler.py
index f49ed30..3e9616f 100755
--- a/crawler/crawler.py
+++ b/crawler/crawler.py
@@ -70,7 +70,7 @@ def stop(self):
 
 if __name__ == "__main__":
 	c = Crawler(10, 4, MONGODB_HOST, MONGODB_PORT, MONGODB_DBNAME, MONGODB_COLLECTION,
-		feeds=['http://www.pornhub.com'],
+		feeds=['http://www.youporn.com'],
 		nb_ask_feeds=0)
 	try:
 		c.loop()
diff --git a/crawler/fetcher.py b/crawler/fetcher.py
index 1a0707c..bee41e3 100644
--- a/crawler/fetcher.py
+++ b/crawler/fetcher.py
@@ -26,6 +26,7 @@ def __init__(self, robot, queue_in, queue_out, max_depth, proxies):
 		self._is_working = threading.Event()
 
 	def stop(self):
+		self.mongodbAPI.stop()
 		self.e_stop.set()
 
 	def is_working(self):
@@ -113,6 +114,7 @@ def extract(self, html, url):
 			return extractor
 		
 	def url_need_a_visit(self, url):
+		return True
 		p = urllib.parse.urlparse(url)
 		if p.scheme in ('http','https'):
 			return self.mongodbAPI.url_need_a_visit(url)
diff --git a/crawler/mongodbapi.py b/crawler/mongodbapi.py
index 996082d..8c6f629 100644
--- a/crawler/mongodbapi.py
+++ b/crawler/mongodbapi.py
@@ -3,7 +3,7 @@
 import urllib.request
 import urllib.error
 import threading
-
+import queue
 
 from tools import *
 
@@ -15,19 +15,30 @@ class MongodbAPI:
 	def __init__(self, host='localhost', port=8080):
 		self.host = host
 		self.port = port
+		
+		self.queue = queue.Queue()
+		self.e_stop = threading.Event()
+		
+		self.t = threading.Thread(target=self.loop_send, name="MongoAPI.loop_send")
+		self.t.setDaemon(True)
+		self.t.start()
+
 
+	def stop(self):
+		self.e_stop.set()
+	
 	def add_page(self, *, url):
 		page = {
 			'url': url
 		}
-		self.send("add_page", dict_to_json(page), block=False)
+		self.queue.put("add_page", dict_to_json(page))
 
 	def add_link(self, *, source, target):
 		link = {
 			'source': source,
 			'target': target,
 		}
-		self.send("add_link", dict_to_json(link), block=False)
+		self.queue.put("add_link", dict_to_json(link))
 
 	def url_need_a_visit(self, url):
 		url = { 'url' : url }
@@ -39,27 +50,31 @@ def get_urls_to_visit(self, max_urls):
 		r = self.send("get_urls_to_visit", dict_to_json(req))
 		return eval(r)
 	
-	def send(self, operation, req, *, block=True):
+	def send(self, operation, req):
 		url = "http://{host}:{port}/_rest_/{operation}".format(
 			host=self.host,
 			port=self.port,
 			operation=operation
 		)
 		encoded_req = req.encode()
-		def _f():
-			try:
-				r = urllib.request.urlopen(url, encoded_req)
-			except urllib.error.URLError as ex:
-				print("ERROR", self.__class__.__name__, "send :", ex, "url=", url, "req=", req, "\n"+get_traceback())
-			else:
-				return r
-		if block:
-			r = _f()
-			return r.read().decode() if r else ""
+		s = ""
+		try:
+			r = urllib.request.urlopen(url, encoded_req)
+		except urllib.error.URLError as ex:
+			print("ERROR", self.__class__.__name__, "send :", ex, "url=", url, "req=", req, "\n"+get_traceback())
 		else:
-			t = threading.Thread(target=_f)
-			t.start()
-
+			s = r.read().decode()
+			r.close()
+		finally:
+			return s
 
+	def loop_send(self):
+		while not self.e_stop.is_set():
+			try:
+				operation, req = self.queue.get(True, 0.5)
+			except:
+				pass
+			else:
+				self.send(operation,req)