diff --git a/defaults/yacy.init b/defaults/yacy.init
index 726a7d9dc..e9ceda2aa 100644
--- a/defaults/yacy.init
+++ b/defaults/yacy.init
@@ -964,20 +964,19 @@ search.ranking.rwi.profile =
 search.ranking.solr.collection.boostname.tmpa.0=Default Profile
 search.ranking.solr.collection.boostfields.tmpa.0=url_paths_sxt^1000.0,synonyms_sxt^1.0,title^10000.0,text_t^2.0,h1_txt^1000.0,h2_txt^100.0,host_organization_s^100000.0
 search.ranking.solr.collection.boostquery.tmpa.0=fuzzy_signature_unique_b:true^100000.0
-search.ranking.solr.collection.boostfunction.tmpa.0=scale(references_external_i,1,20)
-#search.ranking.solr.collection.boostfunction.tmpa.0=product(recip(rord(last_modified),1,1000,1000),div(product(log(product(references_external_i,references_exthosts_i)),div(references_internal_i,host_extent_i)),add(clickdepth_i,1)))
+search.ranking.solr.collection.boostfunction.tmpb.0=scale(cr_host_norm_i,1,20)
 search.ranking.solr.collection.boostname.tmpa.1=Date Profile: sort by date in descending order for a '/data' usage
 search.ranking.solr.collection.boostfields.tmpa.1=text_t^1.0
 search.ranking.solr.collection.boostquery.tmpa.1=fuzzy_signature_unique_b:true^100000.0
-search.ranking.solr.collection.boostfunction.tmpa.1=recip(rord(last_modified),1,1000,1000)
+search.ranking.solr.collection.boostfunction.tmpb.1=recip(rord(last_modified),1,1000,1000)
 search.ranking.solr.collection.boostname.tmpa.2=Intranet Profile: when a search is done on a singe domain only, i.e. if a site:-operator is used
 search.ranking.solr.collection.boostfields.tmpa.2=url_paths_sxt^1000.0,synonyms_sxt^1.0,title^10000.0,text_t^2.0,h1_txt^1000.0,h2_txt^100.0
 search.ranking.solr.collection.boostquery.tmpa.2=fuzzy_signature_unique_b:true^100000.0
-search.ranking.solr.collection.boostfunction.tmpa.2=product(recip(rord(last_modified),1,10000,10000),product(references_exthosts_i,pow(div(references_internal_i,host_extent_i),2)))
+search.ranking.solr.collection.boostfunction.tmpb.2=scale(cr_host_norm_i,1,20)
 search.ranking.solr.collection.boostname.tmpa.3=_unused3
 search.ranking.solr.collection.boostfields.tmpa.3=text_t^1.0
 search.ranking.solr.collection.boostquery.tmpa.3=fuzzy_signature_unique_b:true^100000.0
-search.ranking.solr.collection.boostfunction.tmpa.3=div(add(1,references_i),add(url_chars_i,pow(clickdepth_i,2)))
+search.ranking.solr.collection.boostfunction.tmpb.3=
 
 # the following values are used to identify duplicate content
 search.ranking.solr.doubledetection.minlength=3
diff --git a/source/net/yacy/search/SwitchboardConstants.java b/source/net/yacy/search/SwitchboardConstants.java
index 61eabc3bd..36868777c 100644
--- a/source/net/yacy/search/SwitchboardConstants.java
+++ b/source/net/yacy/search/SwitchboardConstants.java
@@ -493,7 +493,7 @@ public final class SwitchboardConstants {
     public static final String SEARCH_RANKING_SOLR_COLLECTION_BOOSTNAME_         = "search.ranking.solr.collection.boostname.tmpa."; // temporary until we know best default values; add the index number (0..3) to that string
     public static final String SEARCH_RANKING_SOLR_COLLECTION_BOOSTFIELDS_       = "search.ranking.solr.collection.boostfields.tmpa.";
     public static final String SEARCH_RANKING_SOLR_COLLECTION_BOOSTQUERY_        = "search.ranking.solr.collection.boostquery.tmpa.";
-    public static final String SEARCH_RANKING_SOLR_COLLECTION_BOOSTFUNCTION_     = "search.ranking.solr.collection.boostfunction.tmpa.";
+    public static final String SEARCH_RANKING_SOLR_COLLECTION_BOOSTFUNCTION_     = "search.ranking.solr.collection.boostfunction.tmpb.";
     
     /**
      * system tray