diff --git a/web/templates/entry_view.html b/web/templates/entry_view.html
index 647ed11..c6582df 100644
--- a/web/templates/entry_view.html
+++ b/web/templates/entry_view.html
@@ -223,4 +223,30 @@
     });
   })();
 </script>
+
+<script>
+(function(){
+  {% if user.is_authenticated %}
+  const entryId = {{ entry.id }};
+  let timer = null;
+
+  function visible(){ return document.visibilityState === 'visible'; }
+  function start(){
+    if (timer || !visible()) return;
+    timer = setTimeout(()=>{
+      const fd = new FormData();
+      fetch("{% url 'api_log_view' 0 %}".replace("0", entryId), {
+        method:'POST', body: fd,
+        headers: {'X-CSRFToken': (document.cookie.match(/(^|;)\s*csrftoken\s*=\s*([^;]+)/)||[]).pop() || '' }
+      }).catch(()=>{});
+    }, 10000); // 10 seconds
+  }
+  function stop(){ if (timer){ clearTimeout(timer); timer = null; } }
+
+  document.addEventListener('visibilitychange', ()=> visible() ? start() : stop());
+  window.addEventListener('pagehide', stop);
+  start();
+  {% endif %}
+})();
+</script>
 {% endblock %}
\ No newline at end of file