diff --git a/app/controllers/admin/communication/websites/application_controller.rb b/app/controllers/admin/communication/websites/application_controller.rb
index 253b5a04ddf61d021238d3c2786457541fa161e6..f71b0dc0aaa72fad23c33ad0b057f524480728de 100644
--- a/app/controllers/admin/communication/websites/application_controller.rb
+++ b/app/controllers/admin/communication/websites/application_controller.rb
@@ -6,10 +6,21 @@ class Admin::Communication::Websites::ApplicationController < Admin::Communicati
 
   protected
 
+  def current_website_language
+    @current_website_language ||= begin
+      language = @website.languages.find_by(iso_code: params[:lang])
+      language ||= @website.default_language
+      language
+    end
+  end
+  helper_method :current_website_language
+
   def default_url_options
-    return {} unless params.has_key? :website_id
-    {
-      website_id: params[:website_id]
-    }
+    options = {}
+    if @website.present?
+      options[:website_id] = @website.id
+      options[:lang] = current_website_language.iso_code if @website.languages.many?
+    end
+    options
   end
 end
diff --git a/app/controllers/admin/communication/websites_controller.rb b/app/controllers/admin/communication/websites_controller.rb
index ffdff0776096308f58e73c3975c52cc7a685a3eb..90585acd3658192c978bad678c49364fd47eadd8 100644
--- a/app/controllers/admin/communication/websites_controller.rb
+++ b/app/controllers/admin/communication/websites_controller.rb
@@ -1,8 +1,4 @@
-class Admin::Communication::WebsitesController < Admin::Communication::ApplicationController
-  load_and_authorize_resource class: Communication::Website,
-                              through: :current_university,
-                              through_association: :communication_websites
-
+class Admin::Communication::WebsitesController < Admin::Communication::Websites::ApplicationController
   has_scope :for_search_term
   has_scope :for_about_type
 
@@ -85,4 +81,12 @@ class Admin::Communication::WebsitesController < Admin::Communication::Applicati
       :git_provider, :git_endpoint, :git_branch, :plausible_url, :default_language_id, language_ids: []
     )
   end
+
+  def default_url_options
+    options = {}
+    if @website.present?
+      options[:lang] = current_website_language.iso_code if @website.languages.many?
+    end
+    options
+  end
 end
diff --git a/app/views/admin/communication/websites/_sidebar.html.erb b/app/views/admin/communication/websites/_sidebar.html.erb
index 2c170bb7653e10cc31c9d3345220424ffc906ff3..871c4c00b902691bbdc2d86930e82a169a0d4796 100644
--- a/app/views/admin/communication/websites/_sidebar.html.erb
+++ b/app/views/admin/communication/websites/_sidebar.html.erb
@@ -39,7 +39,7 @@
 
         navigation.each_with_index do |object, index|
           next unless object[:ability]
-          active = index.zero?  ? object[:path] == request.path
+          active = index.zero?  ? controller_name == "websites" && action_name == "show"
                                 : object[:path].in?(request.path)
         %>
         <a class="list-group-item list-group-item-action<%= ' active' if active %>" href="<%= object[:path] %>">
@@ -51,6 +51,16 @@
         <% end %>
       </div>
     </div>
+    <% if @website.languages.many? %>
+      <div class="card">
+        <p><%= Language.model_name.human %></p>
+        <ul>
+          <% @website.languages.each do |language| %>
+            <li><%= link_to_if current_website_language != language, I18n.t(language.iso_code, scope: :languages), request.params.merge(lang: language.iso_code) %></li>
+          <% end %>
+        </ul>
+      </div>
+    <% end %>
   </div>
   <div class="col-lg-9 col-xl-10">
     <%= yield %>
diff --git a/config/routes/admin/communication.rb b/config/routes/admin/communication.rb
index c77d1b22f875d34e729640eceae4fde1cfb83e15..01c259ef635db9e6bbb90bf2d57b51a21a019f60 100644
--- a/config/routes/admin/communication.rb
+++ b/config/routes/admin/communication.rb
@@ -2,12 +2,14 @@ namespace :communication do
   get 'unsplash' => 'unsplash#index'
   resources :websites do
     member do
-      get :import
-      post :import
-      get :style
-      get :analytics
+      scope '/:lang' do
+        get :import
+        post :import
+        get :style
+        get :analytics
+      end
     end
-    resources :pages, controller: 'websites/pages' do
+    resources :pages, controller: 'websites/pages', path: '/:lang/pages' do
       collection do
         post :reorder
       end
@@ -19,7 +21,7 @@ namespace :communication do
         post :duplicate
       end
     end
-    resources :categories, controller: 'websites/categories' do
+    resources :categories, controller: 'websites/categories', path: '/:lang/categories' do
       collection do
         post :reorder
       end
@@ -28,20 +30,18 @@ namespace :communication do
         get :static
       end
     end
-    resources :authors, controller: 'websites/authors', only: [:index, :show]
-    resources :posts, controller: 'websites/posts' do
-      post :publish, on: :collection
+    resources :authors, controller: 'websites/authors', path: '/:lang/authors', only: [:index, :show]
+    resources :posts, controller: 'websites/posts', path: '/:lang/posts' do
+      collection do
+        resources :curations, as: :post_curations, controller: 'websites/posts/curations', only: [:new, :create]
+        post :publish
+      end
       member do
         get :static
         get :preview
       end
     end
-    resources :curations,
-              path: 'posts/curations',
-              as: :post_curations,
-              controller: 'websites/posts/curations',
-              only: [:new, :create]
-    resources :menus, controller: 'websites/menus' do
+    resources :menus, controller: 'websites/menus', path: '/:lang/menus' do
       resources :items, controller: 'websites/menus/items', except: :index do
         collection do
           get :kind_switch