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+<!DOCTYPE html>
+<html lang="fr">
+  <head>
+    <meta charset="utf-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1">
+    <title>Maatma :: Service Unavailable</title>
+    <link href="https://cdn.jsdelivr.net/npm/bootstrap@5.1.3/dist/css/bootstrap.min.css" rel="stylesheet" integrity="sha384-1BmE4kWBq78iYhFldvKuhfTAU6auU8tT94WrHftjDbrCEXSU1oBoqyl2QvZ6jIW3" crossorigin="anonymous">
+    <link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/bootstrap-icons@1.8.1/font/bootstrap-icons.css">
+  </head>
+  <body>
+    <div class="container mt-1 mb-4">
+      <div class="d-flex align-items-center">
+        <h1 class="display-3 mb-0 text-nowrap">
+          Error 503
+        </h1>
+        <div class="text-muted ms-3 flex-fill text-end">
+          <script>
+            document.write(new Intl.DateTimeFormat('default', {hour:'numeric', minute: 'numeric', second: 'numeric', year: 'numeric', month: 'numeric', day: 'numeric', timeZone: 'UTC'}).format(new Date()))
+          </script>
+          UTC
+        </div>
+      </div>
+      <h2 class="text-muted fw-light">
+        Service Unavailable
+      </h2>
+    </div>
+    <div class="container-fluid py-5" style="background-color: #ddd; box-shadow: inset 0px 0px 5px #999">
+      <div class="d-flex justify-content-around flex-sm-row">
+        <div class="position-relative h-100">
+          <div class="text-center display-2">
+            <div class="position-absolute w-100 ps-5">
+              <i class="bi bi-check-circle-fill text-success" style="font-size: 50%"></i>
+            </div>
+            <i class="bi bi-laptop text-muted"></i>
+          </div>
+          <h3 class="text-center">
+            Browser<br>
+            <span class="text-success">
+              Working
+            </span>
+          </h3>
+        </div>
+        <div class="d-flex flex-column display-1 justify-content-center align-items-center">
+          <i class="d-none d-sm-inline bi bi-arrow-left-right"></i>
+        </div>
+        <div class="position-relative h-100">
+          <div class="text-center display-2">
+            <div class="position-absolute w-100 ps-5">
+              <i class="bi bi-x-circle-fill text-danger" style="font-size: 50%"></i>
+            </div>
+            <i class="bi bi-cloud-fill text-muted"></i>
+          </div>
+          <h3 class="text-center">
+            Maatma<br>
+            <span class="text-danger">
+              Error
+            </span>
+          </h3>
+        </div>
+        <div class="d-flex flex-column display-1 justify-content-center align-items-center">
+          <i class="d-none d-sm-inline bi bi-arrow-left-right"></i>
+        </div>
+        <div class="position-relative h-100">
+          <div class="text-center display-2">
+            <div class="position-absolute w-100 ps-5">
+              <i class="bi bi-question-circle-fill text-info" style="font-size: 50%"></i>
+            </div>
+            <i class="bi bi-hdd-network-fill text-muted"></i>
+          </div>
+          <h3 class="text-center">
+            <div class="font-monospace text-truncate" style="min-height: 1.1em;">
+              <script>
+                document.write(window.location.host);
+              </script>
+            </div>
+            <span class="text-muted">
+              Unknown
+            </span>
+          </h3>
+        </div>
+      </div>
+    </div>
+
+    <div class="container mt-4">
+      <div class="row">
+        <div class="col-md">
+          <h3 class="mb-1">What happened?</h3>
+          <p>
+            Maatma seems to have an issue and can't send the request correctly to its destination.
+          </p>
+        </div>
+        <div class="col-md">
+          <h3 class="mb-1">It's my host, what can I do?</h3>
+          <p>
+            Most probably: nothing. Try to ping <a href="https://matrix.to/#/#maatma:nemunai.re" target="_blank">@nemunaire</a> on Matrix if he's not aware of the problem.
+          </p>
+        </div>
+      </div>
+    </div>
+  </body>
+</html>
