diff --git a/mongo/mongocrawler.py b/mongo/mongocrawler.py
index e05bee8..da8ac11 100644
--- a/mongo/mongocrawler.py
+++ b/mongo/mongocrawler.py
@@ -33,10 +33,11 @@ DBNAME=os.getenv("SUCKER_DBNAME","crawler")
 MINFILESIZE=300
 MAXFILESIZE=10000000
 MINTEXTSIZE=200
-CHECK_PARAGRAPH_SIZE=150
+CHECK_PARAGRAPH_SIZE=200
 TEXT_TRASH_SIZE=200
 TEXT_TRASH_RATIO=0.6
 DISCOVER_LINK_RATIO = 0.3
+DISCOVER_DOMAIN_RATIO = 0.5
 SAMPLE_SET_SIZE =10000
 CLASSIFIER_SET_SIZE = 200
 STOP_PATHS=["xml","rss","login","admin"]
@@ -61,6 +62,7 @@ def get_bs_links(link,html):
             netloc = parsed.netloc
             path = os.path.normpath(parsed.path)
             scheme = parsed.scheme
+            query = parsed.query
             # internal link
             if parsed.netloc == "":
                 scheme = base.scheme
@@ -74,7 +76,7 @@ def get_bs_links(link,html):
             if path.endswith(")"):
                 # javascript
                 continue
-            href = urllib.parse.urlunparse((scheme,netloc,path,"","",""))
+            href = urllib.parse.urlunparse((scheme,netloc,path,"",query,""))
             href = courlan.normalize_url(href)
             links.add(href)
         except ValueError as err:
@@ -232,7 +234,6 @@ def index_page(db,original_link,final_link,html,doc):
     state = "good"
     link = original_link
     if original_link != final_link:
-        print(original_link,final_link)
         linkcol.update_one({"url":original_link},{"$set":{"status":"redirect"}})
         link = final_link
     if html is None:
@@ -250,7 +251,6 @@ def index_page(db,original_link,final_link,html,doc):
         origsz = 0
         for chs,paragraph_size in zip(doc["paragraph_checksums"],doc["paragraph_sizes"]):
             # index paragraph checksums
-            print(checkcol)
             nd = checkcol.find_one({"_id":chs})
             if nd is None:
                 origsz += paragraph_size
@@ -258,7 +258,6 @@ def index_page(db,original_link,final_link,html,doc):
 
         if (1 - (origsz / tsz)) > TEXT_TRASH_RATIO:
             state = "copy"
-        print(origsz)
     if state == "good":
         htdoc = get_link_doc(link,state)
         htdoc["html"] = html
@@ -273,10 +272,7 @@ def index_page(db,original_link,final_link,html,doc):
         del doc["url"]
         contentcol.update_one({"url":link},{"$set":doc},upsert=True)
         for chs in doc["paragraph_checksums"]:
-            try:
-                checkcol.insert_one({"_id":chs})
-            except pymongo.errors.DuplicateKeyError as err:
-                pass
+            checkcol.update_one({"_id":chs},{"$inc":{"count":1}},upsert=True)
 
     linkdoc = get_link_doc(link,state)
     del linkdoc["url"]
@@ -304,7 +300,6 @@ def save_batch_info(db,host,states,docs):
       "batch_size": batch_size,
     }
     db["batches"].insert_one(batchdoc)
-    print(batchdoc)
 
 
 def extract_links(link_batch:list,responses:list,hostname:str,rules,default_status="frontlink")->list:
@@ -315,15 +310,11 @@ def extract_links(link_batch:list,responses:list,hostname:str,rules,default_stat
         if html is None or len(html) < 256:
             continue
         page_links = get_bs_links(final_link,html)
-        #external_links = courlan.extract_links(html,final_link,external_bool=True,language=LANGUAGE)
-        #internal_links = courlan.extract_links(html,final_link,external_bool=False,language=LANGUAGE)
-        #print(extracted_links)
         for link in page_links:
             if not courlan.is_external(link,final_link) and not is_robot_good(link,rules):
                 badrobot += 1
                 continue
             status = str(default_status)
-            #print(link,status)
             links[link] = status
     outlinks = []
     badlink = 0
@@ -449,7 +440,6 @@ class LinkClassifier:
             goodprob += g
             b = math.log(self.badcounter[feature] + self.alpha) - bcc
             badprob += b
-            print(feature,g,b)
         pa = math.exp(goodprob + gp)
         pb = math.exp(badprob + bp)
         return pa - pb #+ random.uniform(-0.001,0.001)
@@ -730,7 +720,7 @@ def crawl_summary():
         {"$sort":{"original_text_size":-1}},
     ])
     print(">>>> Batches")
-    headers = ["_id","document_count","good_document_count","batch_count","text_size","original_text_size"]
+    headers = ["_id","document_count","good_document_count","batch_size","original_text_size"]
     print("\t".join(headers))
     for item in res:
         values = [str(item[x]) for x in headers]
@@ -761,7 +751,7 @@ def sample_domains():
     all_domains = []
     for domain in domains:
         all_domains.append(domain)
-    sample_size = min(int(DISCOVER_LINK_RATIO* BATCHSIZE), len(all_domains))
+    sample_size = min(int(DISCOVER_DOMAIN_RATIO* BATCHSIZE), len(all_domains))
     print(">>> Discover domains {}".format(sample_size))
     sample_domains = random.sample(all_domains,sample_size)
     domaincol = db["domains"]
@@ -770,7 +760,7 @@ def sample_domains():
     all_domains = []
     for item in res:
         all_domains.append(item["host"])
-    sample_size = min(int((1 - DISCOVER_LINK_RATIO) * BATCHSIZE),len(all_domains))
+    sample_size = min(int((1 - DISCOVER_DOMAIN_RATIO) * BATCHSIZE),len(all_domains))
     print(">>>> Best domains {}".format(sample_size))
     sample_domains += random.sample(all_domains,sample_size)
     for domain in sample_domains: