diff --git a/apps/web/src/dashboard/app.js b/apps/web/src/dashboard/app.js
index 5e392b6..d944cfc 100644
--- a/apps/web/src/dashboard/app.js
+++ b/apps/web/src/dashboard/app.js
@@ -44,14 +44,28 @@ async function api(path, opts = {}) {
 }
 
 // Format relative time
-function timeAgo(date) {
-  const s = Math.floor((Date.now() - new Date(date).getTime()) / 1000);
-  if (s < 60) return `${s}s ago`;
+function formatAgo(ms) {
+  const s = Math.floor(ms / 1000);
+  if (s < 60)   return `${s}s ago`;
   if (s < 3600) return `${Math.floor(s / 60)}m ago`;
-  if (s < 86400) return `${Math.floor(s / 3600)}h ago`;
+  if (s < 86400)return `${Math.floor(s / 3600)}h ago`;
   return `${Math.floor(s / 86400)}d ago`;
 }
 
+function timeAgo(date) {
+  const ts = new Date(date).getTime();
+  const elapsed = Date.now() - ts;
+  return `<span class="timestamp" data-ts="${ts}">${formatAgo(elapsed)}</span>`;
+}
+
+// Tick all live timestamps every second
+setInterval(() => {
+  document.querySelectorAll('.timestamp[data-ts]').forEach(el => {
+    const elapsed = Date.now() - Number(el.dataset.ts);
+    el.textContent = formatAgo(elapsed);
+  });
+}, 1000);
+
 // Render a tiny sparkline SVG from latency values
 function sparkline(values, width = 120, height = 32) {
   if (!values.length) return '';
diff --git a/apps/web/src/views/detail.ejs b/apps/web/src/views/detail.ejs
index 4837076..d5d58bf 100644
--- a/apps/web/src/views/detail.ejs
+++ b/apps/web/src/views/detail.ejs
@@ -164,7 +164,7 @@
           : '<span class="text-gray-500">—</span>';
         document.getElementById('stat-latency').textContent = avgLatency != null ? `${avgLatency}ms` : '—';
         document.getElementById('stat-uptime').textContent = uptime != null ? `${uptime}%` : '—';
-        document.getElementById('stat-last').textContent = lastPing ? timeAgo(lastPing.checked_at) : '—';
+        document.getElementById('stat-last').innerHTML = lastPing ? timeAgo(lastPing.checked_at) : '—';
 
         // Latency chart
         renderLatencyChart(results.slice().reverse());