diff --git a/app/controllers/admin/communication/websites_controller.rb b/app/controllers/admin/communication/websites_controller.rb
index 1b27bcfe166107d46f9c6198806fbce9c435771a..0f4182f69a6a923a0aa97a1a253fd81b754fb6ca 100644
--- a/app/controllers/admin/communication/websites_controller.rb
+++ b/app/controllers/admin/communication/websites_controller.rb
@@ -80,7 +80,7 @@ class Admin::Communication::WebsitesController < Admin::Communication::Websites:
       :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 3e195c5de81c8576ac833a597a8f49c2949eaef6..d03ca7b31a0b061501a9bb1490e65b6c1ecddd0c 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 9fcf63a8ef4b27181ddb126efd7887602fa337ff..e8d41e4232e1c7e43649e4f8b5acb9fa449dfb88 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 8bc86ef5bd4417733ecf792d3239c40b34d7fdb1..ddc757bd54012abf83a07c01c62f7cbcaf013b84 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 f58baa2f2e37d88fae40fc715d03030ac5419f3f..e8a205f68593442f97ea8f251614233005cb60f4 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 d491c90dc8988cbe1fd446948b322febdcc8d0bf..f005e484dcbc0b2cb22d54b0d226c4550cdd8cb6 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