diff --git a/pbrr/settings.py b/pbrr/settings.py
index 27bed48..7ebbd4e 100644
--- a/pbrr/settings.py
+++ b/pbrr/settings.py
@@ -5,6 +5,9 @@
 
 from pbrr.log import Log
 
+# For development, debugging, etc.
+SET_LAST_FETCH_MARK = False
+
 SETTINGS_FILENAME = "settings.json"
 KEY_LAST_FETCH = "last_fetch"
 # domains to skip (e.g. can't fetch right now via pbrr). to be manually added editing the settings json
@@ -30,7 +33,7 @@ def load(self) -> None:
                 data = json.load(file_handle)
 
             last_fetch = data.get(KEY_LAST_FETCH, None)
-            if last_fetch:
+            if last_fetch and SET_LAST_FETCH_MARK:
                 self.last_fetch_mark = datetime.utcfromtimestamp(last_fetch)
                 Log.info("> Previous fetch mark was: {}".format(self.last_fetch_mark))
 
@@ -49,7 +52,7 @@ def save(self) -> None:
             Log.error_and_exit("Output path '{}' not found".format(self.base_output_path))
 
         data = {
-            KEY_LAST_FETCH: fetch_mark.timestamp(),
+            KEY_LAST_FETCH: fetch_mark.timestamp() if SET_LAST_FETCH_MARK else None,
             KEY_SKIP_URLS: self.skip_urls,
             KEY_EMOJI_ICONS: self.category_icons,
             KEY_SKIP_FILTERS: self.skip_filters,
@@ -58,4 +61,7 @@ def save(self) -> None:
         with open(file_path, "w") as file_handle:
             json.dump(data, file_handle, indent=None)
 
-        Log.info("> Fetch mark set to: {}".format(fetch_mark))
+        if SET_LAST_FETCH_MARK:
+            Log.info("> Fetch mark set to: {}".format(fetch_mark))
+        else:
+            Log.info("> Fetch mark skipped")
diff --git a/pbrr/templates/js/pbrr.js b/pbrr/templates/js/pbrr.js
index b8ded1b..9e4e8b1 100644
--- a/pbrr/templates/js/pbrr.js
+++ b/pbrr/templates/js/pbrr.js
@@ -48,7 +48,9 @@
                 feedNode[0].dataset.currentEntries.length > 0 ? feedNode[0].dataset.currentEntries.split(",") : [];
             const currentReadEntries = readFeedData(feedNode[0].id);
 
-            if (currentEntries.length === 0 || currentReadEntries.size >= currentEntries.length) {
+            // No data returned from server, or no new entries
+            if (currentEntries.length === 0
+                || currentEntries.filter(entry => !currentReadEntries.has(entry)).length === 0) {
                 spanNode.hide();
             } else {
                 parentDivNode.collapse("show");
@@ -77,7 +79,7 @@
             }
         }
 
-        if (currentReadEntries.size >= entries.length) {
+        if (entries.filter(entry => !currentReadEntries.has(entry)).length === 0) {
             document.getElementById(feedId)
                     .getElementsByClassName("last-update-date")[0]
                     .classList