diff --git a/resources/chaosknoten/acmedns/docker_compose/index.html.j2 b/resources/chaosknoten/acmedns/docker_compose/index.html.j2
index 02216da..1170cec 100644
--- a/resources/chaosknoten/acmedns/docker_compose/index.html.j2
+++ b/resources/chaosknoten/acmedns/docker_compose/index.html.j2
@@ -4,14 +4,21 @@
 <style>
 table, tr, th, td {
     border-collapse: collapse;
-    border: 1px solid black;
+}
+caption {
+    caption-side: bottom;
+    padding: 2px 4px;
 }
 th, td {
+    border: 1px solid black;
     padding: 2px 4px;
 }
 th {
     text-align: left;
 }
+td {
+    font-family: "Courier", monospace;
+}
 </style>
 </head>
 <body>
@@ -24,19 +31,23 @@ th {
 
 <table id="results" style="display: none">
 <tr>
-    <th>Full Domain</th><td id="fulldomain">foo</td>
+    <th>Full Domain</th><td id="fulldomain">undefined</td>
 </tr>
 <tr>
-    <th>Sub Domain</th><td id="subdomain">foo</td>
+    <th>Subdomain</th><td id="subdomain">undefined</td>
 </tr>
 <tr>
-    <th>Username</th><td id="username">foo</td>
+    <th>X-Api-User</th><td id="username">undefined</td>
 </tr>
 <tr>
-    <th>Password</th><td id="password">foo</td>
+    <th>X-Api-Key</th><td id="password">undefined</td>
 </tr>
+<caption><b>Important!</b> This information will only be shown once. Please
+copy or otherwise save it immediately.</caption>
 </table>
 
+<p><b>Note: there is no way to delete registrations.</b> Each registration is small, so it's not an immediate problem, but please do not click register unless you are planning to really create a new entry.</p>
+
 <script>
 document.getElementById("register").addEventListener("click", (event) => {
     const register = async () => {

Full Domain	foo	Full Domain	undefined
Sub Domain	foo	Subdomain	undefined
Username	foo	X-Api-User	undefined
Password	foo	X-Api-Key	undefined