diff --git a/i18n/en.yaml b/i18n/en.yaml
index a7d1002..7ebdb25 100644
--- a/i18n/en.yaml
+++ b/i18n/en.yaml
@@ -255,6 +255,13 @@
 - id: cta-account-button
   translation: "Create my online space"
 
+- id: beta-alert-title
+  translation: "Online version closed, beta access only"
+- id: beta-alert-text
+  translation: "Public registrations are paused. Join the beta program to get early access."
+- id: beta-alert-button
+  translation: "Join the beta"
+
 - id: cta-newsletter-title
   translation: "Stay a step ahead!"
 - id: cta-newsletter-text
diff --git a/i18n/fr.yaml b/i18n/fr.yaml
index cd4a095..5e553ae 100644
--- a/i18n/fr.yaml
+++ b/i18n/fr.yaml
@@ -254,6 +254,13 @@
 - id: cta-account-button
   translation: "Créer mon espace en ligne"
 
+- id: beta-alert-title
+  translation: "Version en ligne fermée, accès bêta uniquement"
+- id: beta-alert-text
+  translation: "Les inscriptions publiques sont suspendues. Rejoignez le programme bêta pour un accès anticipé."
+- id: beta-alert-button
+  translation: "Rejoindre la bêta"
+
 - id: cta-newsletter-title
   translation: "Gardez une longueur d'avance !"
 - id: cta-newsletter-text
diff --git a/layouts/partials/jumbo.html b/layouts/partials/jumbo.html
index 53e71f2..b0c59ce 100644
--- a/layouts/partials/jumbo.html
+++ b/layouts/partials/jumbo.html
@@ -147,5 +147,40 @@
             </div>
 
         </div>
+
+        <div class="alert alert-warning mt-5 mb-0" role="alert">
+            <div class="row align-items-center g-3">
+                <div class="col-lg-7">
+                    <h5 class="alert-heading mb-1">
+                        <i class="bi bi-info-circle"></i>
+                        {{ i18n "beta-alert-title" }}
+                    </h5>
+                    <p class="mb-0">{{ i18n "beta-alert-text" }}</p>
+                </div>
+                <form
+                    class="col-lg-5 d-flex flex-column flex-sm-row gap-2"
+                    method="post"
+                    action="https://lists.happydomain.org/subscription/form"
+                >
+                    <input type="hidden" name="nonce" />
+                    <input type="hidden" name="l" value="ef8b61ad-fa7d-4f1a-a20f-bb34ac37a3bf" />
+                    <input type="hidden" name="lang" value="{{ site.LanguageCode }}" />
+                    <input
+                        type="email"
+                        name="email"
+                        required
+                        placeholder="j.postel@isi.edu"
+                        class="form-control"
+                    />
+                    <button
+                        type="submit"
+                        class="btn btn-primary text-nowrap"
+                        data-umami-event="beta-join"
+                    >
+                        {{ i18n "beta-alert-button" }}
+                    </button>
+                </form>
+            </div>
+        </div>
     </div>
 </section>