diff --git a/.gitea/workflows/deploy.yml b/.gitea/workflows/deploy.yml
index b7ee905..04eb72f 100644
--- a/.gitea/workflows/deploy.yml
+++ b/.gitea/workflows/deploy.yml
@@ -25,3 +25,4 @@ jobs:
           password: ${{ secrets.FTP_PASS }}
           local-dir: ./
           server-dir: /public_html/
+
diff --git a/app.js b/app.js
index b5fed7a..2b45b81 100644
--- a/app.js
+++ b/app.js
@@ -478,3 +478,30 @@ window.addEventListener('keydown', (e)=>{
 
 // small helper to set initial focus - mobile browsers will not open keyboard for divs
 document.addEventListener('touchstart', ()=>{}, {passive:true})
+
+// load COMMIT_SHA from /version.js if present (no-cache fetch)
+;(function loadCommitSha(){
+  const el = document.getElementById('commit-sha')
+  if (!el) return
+  // prefer a no-cache fetch
+  fetch('/version.js', {cache: 'no-store'})
+    .then(r => {
+      if (!r.ok) throw new Error('no version.js')
+      return r.text()
+    })
+    .then(text => {
+      // naive parse: look for COMMIT_SHA = '...'; or window.COMMIT_SHA
+      let m = text.match(/COMMIT_SHA\s*=\s*['\"]([0-9a-fA-F]+)['\"]/)
+      if (m) return m[1]
+      m = text.match(/window\.COMMIT_SHA\s*=\s*['\"]([0-9a-fA-F]+)['\"]/)
+      if (m) return m[1]
+      return null
+    })
+    .catch(()=>{
+      // fallback to global
+      return (window && window.COMMIT_SHA) ? window.COMMIT_SHA : null
+    })
+    .then(sha => {
+      el.textContent = sha ? sha.slice(0,8) : 'unknown'
+    })
+})()
diff --git a/index.html b/index.html
index 17acb2d..56a730b 100644
--- a/index.html
+++ b/index.html
@@ -157,6 +157,7 @@
   </main>
   </div>
 
+    <footer class="app-footer">Commit: <span id="commit-sha">(loading)</span></footer>
   <script src="app.js"></script>
   </body>
 </html>
diff --git a/styles.css b/styles.css
index 4c9648e..af8d085 100644
--- a/styles.css
+++ b/styles.css
@@ -62,6 +62,8 @@ body{
 .summary h2{margin:6px 0}
 .summary p{font-size:18px}
 
+.app-footer{font-size:12px;color:var(--muted);text-align:center;padding:10px 0}
+
 @media (orientation:portrait){
   .screen{max-height:94vh}
 }