diff --git a/app/controllers/admin/communication/websites_controller.rb b/app/controllers/admin/communication/websites_controller.rb
index 1b27bcfe1..0f4182f69 100644
--- a/app/controllers/admin/communication/websites_controller.rb
+++ b/app/controllers/admin/communication/websites_controller.rb
@@ -80,7 +80,7 @@ def website_params
       :git_provider, :git_endpoint, :git_branch, :plausible_url,
       :feature_posts, :feature_agenda,
       :default_time_zone,
-      :deuxfleurs_hosting, :default_image, :default_image_delete,
+      :deuxfleurs_hosting, :default_image, :default_image_delete, :default_shared_image, :default_shared_image_delete,
       :social_mastodon, :social_x, :social_linkedin, :social_youtube, :social_vimeo, :social_peertube, :social_instagram, :social_facebook, :social_tiktok, :social_email, :social_github,
       :deployment_status_badge, :autoupdate_theme, language_ids: []
     ]
diff --git a/app/models/communication/website.rb b/app/models/communication/website.rb
index 3e195c5de..d03ca7b31 100644
--- a/app/models/communication/website.rb
+++ b/app/models/communication/website.rb
@@ -83,6 +83,9 @@ class Communication::Website < ApplicationRecord
   has_one_attached_deletable :default_image
   validates :default_image, size: { less_than: 5.megabytes }
 
+  has_one_attached_deletable :default_shared_image
+  validates :default_shared_image, size: { less_than: 5.megabytes }
+
   before_validation :sanitize_fields
 
   scope :ordered, -> { order(:name) }
diff --git a/app/views/admin/communication/websites/_form.html.erb b/app/views/admin/communication/websites/_form.html.erb
index 9fcf63a8e..e8d41e423 100644
--- a/app/views/admin/communication/websites/_form.html.erb
+++ b/app/views/admin/communication/websites/_form.html.erb
@@ -51,6 +51,12 @@
                           hint: images_formats_accepted_hint,
                           input_html: { accept: default_images_formats_accepted },
                           preview: 300 %>
+              <%= f.input :default_shared_image,
+                          as: :single_deletable_file,
+                          direct_upload: true,
+                          hint: images_formats_accepted_hint,
+                          input_html: { accept: default_images_formats_accepted },
+                          preview: 300 %>
             </div>
           </div>
         <% end %>
diff --git a/app/views/admin/communication/websites/static.html.erb b/app/views/admin/communication/websites/static.html.erb
index 8bc86ef5b..ddc757bd5 100644
--- a/app/views/admin/communication/websites/static.html.erb
+++ b/app/views/admin/communication/websites/static.html.erb
@@ -1,8 +1,13 @@
 title: >
   <%= @about.to_s %>
+default:
 <% if @website.default_image.attached? %>
-default_image:
-  id: <%= @website.default_image.blob&.id %>
+  image:
+    id: <%= @website.default_image.blob&.id %>
+<% end %>
+<% if @website.default_shared_image.attached? %>
+  shared_image:
+    id: <%= @website.default_shared_image.blob&.id %>
 <% end %>
 social:
 <%
diff --git a/config/locales/communication/en.yml b/config/locales/communication/en.yml
index f58baa2f2..e8a205f68 100644
--- a/config/locales/communication/en.yml
+++ b/config/locales/communication/en.yml
@@ -85,6 +85,7 @@ en:
         created_at: Creation
         default_image: Default image
         default_language: Default language
+        default_shared_image: Default shared image
         default_time_zone: Default time zone
         deployment_status_badge: Deployment status badge
         deuxfleurs_hosting: Hébergement avec Deuxfleurs
@@ -279,7 +280,8 @@ en:
             draft: Draft
             none: No event yet
             formatted_time_zone: "Time zone: %{time_zone}"
-        default_image: "The default image will be used on pages and posts that do not have an image, if the theme is set to display images in all cases. It is also the default sharing image."
+        default_image: "The default image will be used on pages and posts that do not have an image, if the theme is set to display images in all cases."
+        default_shared_image: "The default sharing image, 1200 pixels wide, is a good base because the networks have different standards."
         editorial:
           label: Editorial
           description: Everything related to content
diff --git a/config/locales/communication/fr.yml b/config/locales/communication/fr.yml
index d491c90dc..f005e484d 100644
--- a/config/locales/communication/fr.yml
+++ b/config/locales/communication/fr.yml
@@ -85,6 +85,7 @@ fr:
         created_at: Création
         default_image: Image par défaut
         default_language: Langue par défaut
+        default_shared_image: Image de partage par défaut
         default_time_zone: Fuseau horaire par défaut
         deployment_status_badge: Badge de statut du déploiement
         deuxfleurs_hosting: Hébergement avec Deuxfleurs
@@ -279,7 +280,8 @@ fr:
             draft: Brouillon
             none: Pas encore d'événements
             formatted_time_zone: "Fuseau horaire : %{time_zone}"
-        default_image: "L'image par défaut sera utilisée dans les pages et actualités qui n'ont pas d'image, si le thème est paramétré pour afficher des images dans tous les cas. C'est aussi l'image de partage par défaut."
+        default_image: "L'image par défaut sera utilisée dans les pages et actualités qui n'ont pas d'image, si le thème est paramétré pour afficher des images dans tous les cas."
+        default_shared_image: "Image de partage par défaut, 1200 pixels de large est une bonne base car les réseaux ont des standards différents."
         editorial:
           label: Éditorial
           description: Tout ce qui est lié au contenu