diff --git a/app/models/indexed_post.rb b/app/models/indexed_post.rb
new file mode 100644
index 0000000..6456a82
--- /dev/null
+++ b/app/models/indexed_post.rb
@@ -0,0 +1,38 @@
+# frozen_string_literal: true
+
+# La representación indexable de un artículo
+class IndexedPost < ApplicationRecord
+  include PgSearch::Model
+
+  # La traducción del locale según Sutty al locale según PostgreSQL
+  DICTIONARIES = {
+    es: 'spanish',
+    en: 'english'
+  }.freeze
+
+  # TODO: Los indexed posts tienen que estar scopeados al idioma actual,
+  # no buscar sobre todos
+  pg_search_scope :search,
+    lambda { |locale, query|
+      {
+        against: :content,
+        query: query,
+        using: {
+          tsearch: {
+            dictionary: IndexedPost.to_dictionary(locale: locale),
+            tsvector_column: 'indexed_content'
+          }
+        }
+      }
+    }
+
+  belongs_to :site
+
+  # Convertir locale a direccionario de PG
+  #
+  # @param [String,Symbol]
+  # @return [String]
+  def self.to_dictionary(locale:)
+    DICTIONARIES[locale.to_sym] || 'simple'
+  end
+end
diff --git a/app/models/post.rb b/app/models/post.rb
index a0e1670..6ef7a2e 100644
--- a/app/models/post.rb
+++ b/app/models/post.rb
@@ -17,6 +17,8 @@ class Post
 
   attr_reader :attributes, :errors, :layout, :site, :document
 
+  include Post::Indexable
+
   class << self
     # Obtiene el layout sin leer el Document
     #
@@ -191,6 +193,8 @@ class Post
                                           post: self, required: true)
   end
 
+  alias locale lang
+
   # TODO: Mover a method_missing
   def uuid
     @metadata[:uuid] ||= MetadataUuid.new(document: document, site: site, layout: layout, name: :uuid, type: :uuid,
diff --git a/app/models/post/indexable.rb b/app/models/post/indexable.rb
new file mode 100644
index 0000000..f25f28d
--- /dev/null
+++ b/app/models/post/indexable.rb
@@ -0,0 +1,56 @@
+# frozen_string_literal: true
+
+class Post
+  # Vuelve indexables a los Posts
+  module Indexable
+    extend ActiveSupport::Concern
+
+    included do
+      # Devuelve una versión indexable del Post
+      #
+      # @return [IndexedPosts]
+      def to_index
+        @to_index ||= IndexedPost.find_or_create_by(id: uuid.value).tap do |indexed_post|
+          indexed_post.layout = layout.name
+          indexed_post.site_id = site.id
+          indexed_post.path = path.basename
+          indexed_post.locale = IndexedPost.to_dictionary(locale: locale.value)
+          indexed_post.title = title.value
+          indexed_post.front_matter = indexable_front_matter
+          indexed_post.content = indexable_content
+        end
+      end
+
+      private
+
+      # Los metadatos que se almacenan como objetos JSON.  Empezamos con
+      # las categorías porque se usan para filtrar en el listado de
+      # artículos.
+      #
+      # @return [Hash]
+      def indexable_front_matter
+        return {} unless attribute? :categories
+
+        { categories: categories.indexable_values }
+      end
+
+      # Devuelve un documento indexable en texto plano
+      #
+      # XXX: No memoizamos para permitir actualizaciones, aunque
+      # probablemente se indexe una sola vez.
+      #
+      # @return [String]
+      def indexable_content
+        indexable_attributes.map do |attr|
+          self[attr].to_s
+        end.join("\n")
+      end
+
+      def indexable_attributes
+        @indexable_attributes ||= attributes.select do |attr|
+                                    self[attr].indexable?
+                                  end
+      end
+    end
+  end
+end
diff --git a/app/models/site.rb b/app/models/site.rb
index 1c62e9b..14238e1 100644
--- a/app/models/site.rb
+++ b/app/models/site.rb
@@ -7,6 +7,7 @@ class Site < ApplicationRecord
   include Site::Forms
   include Site::FindAndReplace
   include Site::Api
+  include Site::Index
   include Tienda
 
   # Cifrar la llave privada que cifra y decifra campos ocultos.  Sutty
@@ -37,6 +38,7 @@ class Site < ApplicationRecord
   belongs_to :design
   belongs_to :licencia
 
+  has_many :indexed_posts, dependent: :destroy
   has_many :log_entries, dependent: :destroy
   has_many :deploys, dependent: :destroy
   has_many :build_stats, through: :deploys