diff --git a/src/main/java/eu/openaire/urls_worker/util/AssignmentsHandler.java b/src/main/java/eu/openaire/urls_worker/util/AssignmentsHandler.java
index 37c69cc..8286c7d 100644
--- a/src/main/java/eu/openaire/urls_worker/util/AssignmentsHandler.java
+++ b/src/main/java/eu/openaire/urls_worker/util/AssignmentsHandler.java
@@ -44,8 +44,14 @@ public class AssignmentsHandler {
 
     public static long numHandledAssignmentsBatches = 0;    // No need to be synchronized.
 
-    public static final long idUrlsToHandleBeforeClearingDomainAndPathTrackingData = 300_000;
+    public static final long idUrlsToHandleBeforeClearingDomainAndPathBlockingData = 300_000;
+    public static long timesClearingDomainAndPathBlockingData = 0;
+
+    public static final long idUrlsToHandleBeforeClearingDomainAndPathTrackingData = 600_000;
+    public static long timesClearingDomainAndPathTrackingData = 0;
+
     public static final long idUrlsToHandleBeforeClearingDuplicateUrlsData = 200_000;
+    public static long timesClearingDuplicateUrlsData = 0;
 
 
     public AssignmentsHandler()
@@ -135,11 +141,21 @@ public class AssignmentsHandler {
         // Every time we reach a "limit" of handled id-url clear some data-structures of the underlying "PublicationsRetriever" program.
         // This helps with reducing the memory consumption over the period of weeks or months, and also give a 2nd chance to some domains which may be blocked due to a connectivity issues, but after a month they may be fine.
         long idUrlPairsHandled = (numHandledAssignmentsBatches * UrlsWorkerApplication.maxAssignmentsLimitPerBatch);
-        if ( idUrlPairsHandled >= idUrlsToHandleBeforeClearingDuplicateUrlsData )
-            UrlUtils.duplicateUrls.clear();
 
-        if ( idUrlPairsHandled >= idUrlsToHandleBeforeClearingDomainAndPathTrackingData )
+        if ( idUrlPairsHandled >= ((timesClearingDuplicateUrlsData +1) * idUrlsToHandleBeforeClearingDuplicateUrlsData) ) {
+            UrlUtils.duplicateUrls.clear();
+            timesClearingDuplicateUrlsData ++;
+        }
+
+        if ( idUrlPairsHandled >= ((timesClearingDomainAndPathTrackingData +1) * idUrlsToHandleBeforeClearingDomainAndPathTrackingData) ) {
             GenericUtils.clearDomainAndPathTrackingData();
+            timesClearingDomainAndPathTrackingData ++;
+            timesClearingDomainAndPathBlockingData ++;  // Increment this also, as we avoid the following check in this case, but the counter has to be increased nevertheless.
+            // This includes the "blocking data", we may say "if this condition is true, do not bother checking the just-blocking condition"
+        } else if ( idUrlPairsHandled >= ((timesClearingDomainAndPathBlockingData +1) * idUrlsToHandleBeforeClearingDomainAndPathBlockingData) ) {
+            GenericUtils.clearDomainAndPathBlockingData();
+            timesClearingDomainAndPathBlockingData ++;
+        }
 
         if ( GeneralController.shouldShutdownWorker
                 || (AssignmentsHandler.numHandledAssignmentsBatches == UrlsWorkerApplication.maxAssignmentsBatchesToHandleBeforeShutdown) )