diff --git a/configs/exchange-landing/index.html b/configs/exchange-landing/index.html
index 14e07b2..b18ba18 100644
--- a/configs/exchange-landing/index.html
+++ b/configs/exchange-landing/index.html
@@ -44,6 +44,14 @@
       background-attachment: fixed;
     }
     main { max-width: 42rem; margin: 0 auto; padding: 2.25rem 1.25rem 3.5rem; }
+    .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 1.25rem; }
     h1 {
       font-size: 1.85rem; font-weight: 750; margin: 0 0 0.45rem;
@@ -229,6 +237,16 @@
   <script src="/intro/qrcode.min.js"></script>
 </head>
 <body>
+  <p class="stack-bar" role="note" title="Software running this exchange service">
+    <strong>stack</strong><span class="sep">·</span>
+    taler-exchange&nbsp;1.6.6
+    <span class="sep">·</span>
+    nginx&nbsp;1.26.3
+    <span class="sep">·</span>
+    debian&nbsp;trixie
+    <span class="sep">·</span>
+    landing&nbsp;/intro
+  </p>
   <main>
     <header class="hero">
       <span class="badge">GOA · Exchange</span>
diff --git a/configs/merchant-landing/index.html b/configs/merchant-landing/index.html
index eb72e13..f13f67d 100644
--- a/configs/merchant-landing/index.html
+++ b/configs/merchant-landing/index.html
@@ -58,6 +58,14 @@
       background-attachment: fixed;
     }
     main { position: relative; z-index: 1; max-width: 42rem; margin: 0 auto; padding: 2.25rem 1.25rem 3.5rem; }
+    .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 1.25rem; }
     h1 {
       font-size: 1.85rem; font-weight: 750; margin: 0 0 0.45rem; letter-spacing: -0.02em;
@@ -508,6 +516,18 @@
   </style>
 </head>
 <body>
+  <p class="stack-bar" role="note" title="Software running this merchant service">
+    <strong>stack</strong><span class="sep">·</span>
+    taler-merchant&nbsp;1.6.9
+    <span class="sep">·</span>
+    taler-merchant-webui&nbsp;1.6.8~dev6
+    <span class="sep">·</span>
+    nginx&nbsp;1.26.3
+    <span class="sep">·</span>
+    debian&nbsp;trixie
+    <span class="sep">·</span>
+    landing&nbsp;/intro
+  </p>
   <main>
     <header class="hero">
       <span class="badge">Merchant · dual currency</span>
