diff --git a/configs/bank-landing/index.html b/configs/bank-landing/index.html
index 2b91de6..7b432f1 100644
--- a/configs/bank-landing/index.html
+++ b/configs/bank-landing/index.html
@@ -69,6 +69,25 @@
       margin: 0 auto;
       padding: 2.25rem 1.25rem 3.5rem;
     }
+    /* Technical stack strip (software + versions) — top of page */
+    .stack-bar {
+      margin: 0;
+      padding: 0.35rem 0.75rem;
+      background: #0042b3;
+      color: #d6e4ff;
+      font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
+      font-size: 0.62rem;
+      font-weight: 500;
+      letter-spacing: 0.02em;
+      line-height: 1.35;
+      text-align: center;
+      border-bottom: 1px solid rgba(164, 201, 255, 0.35);
+    }
+    .stack-bar strong {
+      color: #fff;
+      font-weight: 650;
+    }
+    .stack-bar .sep { color: rgba(164, 201, 255, 0.55); margin: 0 0.2rem; }
     .hero {
       text-align: center;
       margin: 0 0 1.75rem;
@@ -984,6 +1003,12 @@
   <script src="/intro/qrcode.min.js"></script>
 </head>
 <body data-shop-theme="bank">
+  <p class="stack-bar" role="note" title="Taler software on this bank service">
+    <strong>stack</strong><span class="sep">·</span>
+    libeufin-bank&nbsp;1.6.6
+    <span class="sep">·</span>
+    libeufin-common&nbsp;1.6.6
+  </p>
   <main>
     <header class="hero">
       <span class="badge">Intergalactic · GOA · no IBAN</span>
