diff --git a/app/jobs/activity_pub/fediblock_fetch_job.rb b/app/jobs/activity_pub/fediblock_fetch_job.rb
index aa748bc6..3d12f4cd 100644
--- a/app/jobs/activity_pub/fediblock_fetch_job.rb
+++ b/app/jobs/activity_pub/fediblock_fetch_job.rb
@@ -11,12 +11,12 @@ class ActivityPub
       ActivityPub::Fediblock.find_each do |fediblock|
         fediblock.process!
 
-        instances_added = fediblock.instances - fediblock.instances_was
+        hostnames_added = fediblock.hostnames - fediblock.hostnames_was
 
         # No hacer nada si no cambió con respecto a la versión anterior
-        next if instances_added.empty?
+        next if hostnames_added.empty?
 
-        ActivityPub::FediblockUpdatedJob.perform_later(fediblock: fediblock, hostnames: instances_added)
+        ActivityPub::FediblockUpdatedJob.perform_later(fediblock: fediblock, hostnames: hostnames_added)
       rescue ActivityPub::Fediblock::FediblockDownloadError => e
         ExceptionNotifier.notify_exception(e, data: { fediblock: fediblock.title })
       end
diff --git a/app/jobs/activity_pub/fediblock_updated_job.rb b/app/jobs/activity_pub/fediblock_updated_job.rb
index b4a56609..1bb47517 100644
--- a/app/jobs/activity_pub/fediblock_updated_job.rb
+++ b/app/jobs/activity_pub/fediblock_updated_job.rb
@@ -2,14 +2,17 @@
 
 # Se encarga de mantener sincronizadas las listas de instancias
 # de los fediblocks con los sitios que las tengan activadas.
+#
+# También va a asociar las listas con todos los sitios que tengan la
+# Social Inbox habilitada.
 class ActivityPub
   class FediblockUpdatedJob < ApplicationJob
     self.priority = 50
 
     # @param :fediblock [ActivityPub::Fediblock]
-    # @param :instances [Array<String>]
+    # @param :hostnames [Array<String>]
     def perform(fediblock:, hostnames:)
-      instances = ActivityPub::Instance.where(hostname: instances)
+      instances = ActivityPub::Instance.where(hostname: hostnames)
 
       # Todos los sitios con la Social Inbox habilitada
       Site.where(id: DeploySocialDistributedPress.pluck(:site_id)).find_each do |site|
@@ -19,7 +22,7 @@ class ActivityPub
         # No hace nada con los deshabilitados
         next unless fediblock_state.enabled?
 
-        ActivityPub::InstanceModerationJob.perform_later(site: site, hostnames: instances)
+        ActivityPub::InstanceModerationJob.perform_later(site: site, hostnames: hostnames)
       end
     end
   end
diff --git a/app/models/activity_pub/fediblock.rb b/app/models/activity_pub/fediblock.rb
index 8d024f56..4abcb80f 100644
--- a/app/models/activity_pub/fediblock.rb
+++ b/app/models/activity_pub/fediblock.rb
@@ -43,6 +43,11 @@ class ActivityPub
       @client ||= Client.new
     end
 
+    # Todas las instancias de este fediblock
+    def instances
+      ActivityPub::Instance.where(hostname: hostnames)
+    end
+
     # Descarga la lista y crea las instancias con el estado necesario
     def process!
       response = client.get(download_url)
@@ -53,7 +58,7 @@ class ActivityPub
         csv = response.parsed_response
         process_csv! csv
 
-        update(instances: csv.map { |r| r[hostname_header] })
+        update(hostnames: csv.map { |r| r[hostname_header] })
       end
     end
 
diff --git a/app/views/components/_block_list.haml b/app/views/components/_block_list.haml
index 79481363..75825bb0 100644
--- a/app/views/components/_block_list.haml
+++ b/app/views/components/_block_list.haml
@@ -7,6 +7,6 @@
 
       %dl.mb-0
         %dt.d-inline= t('.instances_blocked')
-        %dd.d-inline.font-weight-normal= blocklist.instances.count
+        %dd.d-inline.font-weight-normal= blocklist.hostnames.count
       %p.mb-0.font-weight-normal
         %a{ href: blocklist.url }= know_more
diff --git a/db/migrate/20240228171335_rename_fediblock_instances_to_hostnames.rb b/db/migrate/20240228171335_rename_fediblock_instances_to_hostnames.rb
new file mode 100644
index 00000000..bad343f2
--- /dev/null
+++ b/db/migrate/20240228171335_rename_fediblock_instances_to_hostnames.rb
@@ -0,0 +1,9 @@
+# frozen_string_literal: true
+
+# Cambia el nombre de la columna para que podamos obtener todas las
+# instancias de un fediblock
+class RenameFediblockInstancesToHostnames < ActiveRecord::Migration[6.1]
+  def change
+    rename_column :activity_pub_fediblocks, :instances, :hostnames
+  end
+end
diff --git a/db/structure.sql b/db/structure.sql
index ac897695..740f5d87 100644
--- a/db/structure.sql
+++ b/db/structure.sql
@@ -514,7 +514,7 @@ CREATE TABLE public.activity_pub_fediblocks (
     url character varying NOT NULL,
     download_url character varying NOT NULL,
     format character varying NOT NULL,
-    instances jsonb DEFAULT '[]'::jsonb
+    hostnames jsonb DEFAULT '[]'::jsonb
 );
 
 
@@ -2615,6 +2615,7 @@ INSERT INTO "schema_migrations" (version) VALUES
 ('20240226133022'),
 ('20240226134335'),
 ('20240227134845'),
-('20240227142019');
+('20240227142019'),
+('20240228171335');