diff --git a/includes/class-activity-dispatcher.php b/includes/class-activity-dispatcher.php
index f8abd38..6df83e7 100644
--- a/includes/class-activity-dispatcher.php
+++ b/includes/class-activity-dispatcher.php
@@ -13,7 +13,10 @@ class Activity_Dispatcher {
 	 * Initialize the class, registering WordPress hooks.
 	 */
 	public static function init() {
-		\add_action( 'activitypub_send_post_activity', array( '\Activitypub\Activity_Dispatcher', 'send_post_activity' ) );
+		// legacy
+		\add_action( 'activitypub_send_post_activity', array( '\Activitypub\Activity_Dispatcher', 'send_create_activity' ) );
+
+		\add_action( 'activitypub_send_create_activity', array( '\Activitypub\Activity_Dispatcher', 'send_create_activity' ) );
 		\add_action( 'activitypub_send_update_activity', array( '\Activitypub\Activity_Dispatcher', 'send_update_activity' ) );
 		\add_action( 'activitypub_send_delete_activity', array( '\Activitypub\Activity_Dispatcher', 'send_delete_activity' ) );
 	}
@@ -23,38 +26,8 @@ class Activity_Dispatcher {
 	 *
 	 * @param \Activitypub\Model\Post $activitypub_post
 	 */
-	public static function send_post_activity( Model\Post $activitypub_post ) {
-		// get latest version of post
-		$user_id = $activitypub_post->get_post_author();
-
-		$activitypub_activity = new \Activitypub\Model\Activity( 'Create', \Activitypub\Model\Activity::TYPE_FULL );
-		$activitypub_activity->from_post( $activitypub_post );
-
-		$inboxes = \Activitypub\get_follower_inboxes( $user_id );
-
-		$followers_url = \get_rest_url( null, '/activitypub/1.0/users/' . intval( $user_id ) . '/followers' );
-		foreach ( $activitypub_activity->get_cc() as $cc ) {
-			if ( $cc === $followers_url ) {
-				continue;
-			}
-			$inbox = \Activitypub\get_inbox_by_actor( $cc );
-			if ( ! $inbox || \is_wp_error( $inbox ) ) {
-				continue;
-			}
-			// init array if empty
-			if ( ! isset( $inboxes[ $inbox ] ) ) {
-				$inboxes[ $inbox ] = array();
-			}
-			$inboxes[ $inbox ][] = $cc;
-		}
-
-		foreach ( $inboxes as $inbox => $to ) {
-			$to = array_values( array_unique( $to ) );
-			$activitypub_activity->set_to( $to );
-			$activity = $activitypub_activity->to_json();
-
-			\Activitypub\safe_remote_post( $inbox, $activity, $user_id );
-		}
+	public static function send_create_activity( Model\Post $activitypub_post ) {
+		self::send_activity( $activitypub_post, 'Create' );
 	}
 
 	/**
@@ -62,19 +35,8 @@ class Activity_Dispatcher {
 	 *
 	 * @param \Activitypub\Model\Post $activitypub_post
 	 */
-	public static function send_update_activity( $activitypub_post ) {
-		// get latest version of post
-		$user_id = $activitypub_post->get_post_author();
-
-		$activitypub_activity = new \Activitypub\Model\Activity( 'Update', \Activitypub\Model\Activity::TYPE_FULL );
-		$activitypub_activity->from_post( $activitypub_post );
-
-		foreach ( \Activitypub\get_follower_inboxes( $user_id ) as $inbox => $to ) {
-			$activitypub_activity->set_to( $to );
-			$activity = $activitypub_activity->to_json(); // phpcs:ignore
-
-			\Activitypub\safe_remote_post( $inbox, $activity, $user_id );
-		}
+	public static function send_update_activity( Model\Post $activitypub_post ) {
+		self::send_activity( $activitypub_post, 'Update' );
 	}
 
 	/**
@@ -82,16 +44,30 @@ class Activity_Dispatcher {
 	 *
 	 * @param \Activitypub\Model\Post $activitypub_post
 	 */
-	public static function send_delete_activity( $activitypub_post ) {
+	public static function send_delete_activity( Model\Post $activitypub_post ) {
+		self::send_activity( $activitypub_post, 'Delete' );
+	}
+
+	/**
+	 * Undocumented function
+	 *
+	 * @param [type] $activitypub_post
+	 * @param [type] $activity_type
+	 * @return void
+	 */
+	public static function send_activity( Model\Post $activitypub_post, $activity_type ) {
 		// get latest version of post
 		$user_id = $activitypub_post->get_post_author();
 
-		$activitypub_activity = new \Activitypub\Model\Activity( 'Delete', \Activitypub\Model\Activity::TYPE_FULL );
+		$activitypub_activity = new \Activitypub\Model\Activity( $activity_type );
 		$activitypub_activity->from_post( $activitypub_post );
 
-		foreach ( \Activitypub\get_follower_inboxes( $user_id ) as $inbox => $to ) {
-			$activitypub_activity->set_to( $to );
-			$activity = $activitypub_activity->to_json(); // phpcs:ignore
+		$inboxes = \Activitypub\get_follower_inboxes( $user_id, $activitypub_activity->get_cc() );
+
+		foreach ( $inboxes as $inbox => $cc ) {
+			$cc = array_values( array_unique( $cc ) );
+			$activitypub_activity->add_cc( $cc );
+			$activity = $activitypub_activity->to_json();
 
 			\Activitypub\safe_remote_post( $inbox, $activity, $user_id );
 		}
diff --git a/includes/class-activitypub.php b/includes/class-activitypub.php
index c04aedc..4a60915 100644
--- a/includes/class-activitypub.php
+++ b/includes/class-activitypub.php
@@ -117,7 +117,7 @@ class Activitypub {
 		$activitypub_post = new \Activitypub\Model\Post( $post );
 
 		if ( 'publish' === $new_status && 'publish' !== $old_status ) {
-			\wp_schedule_single_event( \time(), 'activitypub_send_post_activity', array( $activitypub_post ) );
+			\wp_schedule_single_event( \time(), 'activitypub_send_create_activity', array( $activitypub_post ) );
 		} elseif ( 'publish' === $new_status ) {
 			\wp_schedule_single_event( \time(), 'activitypub_send_update_activity', array( $activitypub_post ) );
 		} elseif ( 'trash' === $new_status ) {
diff --git a/includes/functions.php b/includes/functions.php
index 8f2e5d9..77508c5 100644
--- a/includes/functions.php
+++ b/includes/functions.php
@@ -219,8 +219,11 @@ function get_publickey_by_actor( $actor, $key_id ) {
 	return new \WP_Error( 'activitypub_no_public_key', \__( 'No "Public-Key" found', 'activitypub' ), $metadata );
 }
 
-function get_follower_inboxes( $user_id ) {
+function get_follower_inboxes( $user_id, $cc = array() ) {
 	$followers = \Activitypub\Peer\Followers::get_followers( $user_id );
+	$followers = array_merge( $followers, $cc );
+	$followers = array_unique( $followers );
+
 	$inboxes = array();
 
 	foreach ( $followers as $follower ) {
diff --git a/includes/model/class-activity.php b/includes/model/class-activity.php
index f865d6d..34f6146 100644
--- a/includes/model/class-activity.php
+++ b/includes/model/class-activity.php
@@ -9,24 +9,38 @@ namespace Activitypub\Model;
  * @see https://www.w3.org/TR/activitypub/
  */
 class Activity {
-	private $context = array( 'https://www.w3.org/ns/activitystreams' );
+	private $context = array(
+		'https://www.w3.org/ns/activitystreams',
+		'https://w3id.org/security/v1',
+		array(
+			'manuallyApprovesFollowers' => 'as:manuallyApprovesFollowers',
+			'PropertyValue' => 'schema:PropertyValue',
+			'schema' => 'http://schema.org#',
+			'pt' => 'https://joinpeertube.org/ns#',
+			'toot' => 'http://joinmastodon.org/ns#',
+			'value' => 'schema:value',
+			'Hashtag' => 'as:Hashtag',
+			'featured' => array(
+				'@id' => 'toot:featured',
+				'@type' => '@id',
+			),
+			'featuredTags' => array(
+				'@id' => 'toot:featuredTags',
+				'@type' => '@id',
+			),
+		),
+	);
 	private $published = '';
 	private $id = '';
 	private $type = 'Create';
 	private $actor = '';
 	private $to = array( 'https://www.w3.org/ns/activitystreams#Public' );
-	private $cc = array( 'https://www.w3.org/ns/activitystreams#Public' );
+	private $cc = array();
 	private $object = null;
 
-	const TYPE_SIMPLE = 'simple';
-	const TYPE_FULL = 'full';
-	const TYPE_NONE = 'none';
-
-	public function __construct( $type = 'Create', $context = self::TYPE_SIMPLE ) {
-		if ( 'none' === $context ) {
+	public function __construct( $type = 'Create', $context = true ) {
+		if ( true !== $context ) {
 			$this->context = null;
-		} elseif ( 'full' === $context ) {
-			$this->context = \Activitypub\get_context();
 		}
 
 		$this->type = \ucfirst( $type );
@@ -43,6 +57,20 @@ class Activity {
 		if ( \strncasecmp( $method, 'set', 3 ) === 0 ) {
 			$this->$var = $params[0];
 		}
+
+		if ( \strncasecmp( $method, 'add', 3 ) === 0 ) {
+			if ( ! is_array( $this->$var ) ) {
+				$this->$var = $params[0];
+			}
+
+			if ( is_array( $params[0] ) ) {
+				$this->$var = array_merge( $this->$var, $params[0] );
+			} else {
+				array_push( $this->$var, $params[0] );
+			}
+
+			$this->$var = array_unique( $this->$var );
+		}
 	}
 
 	public function from_post( Post $post ) {
@@ -51,7 +79,8 @@ class Activity {
 		if ( isset( $object['published'] ) ) {
 			$this->published = $object['published'];
 		}
-		$this->cc = array( \get_rest_url( null, '/activitypub/1.0/users/' . intval( $post->get_post_author() ) . '/followers' ) );
+
+		$this->add_to( \get_rest_url( null, '/activitypub/1.0/users/' . intval( $post->get_post_author() ) . '/followers' ) );
 
 		if ( isset( $this->object['attributedTo'] ) ) {
 			$this->actor = $this->object['attributedTo'];
@@ -59,7 +88,7 @@ class Activity {
 
 		foreach ( $post->get_tags() as $tag ) {
 			if ( 'Mention' === $tag['type'] ) {
-				$this->cc[] = $tag['href'];
+				$this->add_cc( $tag['href'] );
 			}
 		}
 
diff --git a/includes/model/class-post.php b/includes/model/class-post.php
index d83384e..cfe49b6 100644
--- a/includes/model/class-post.php
+++ b/includes/model/class-post.php
@@ -104,6 +104,24 @@ class Post {
 		'cite' => array(),
 	);
 
+	/**
+	 * List of audience
+	 *
+	 * Also used for visibility
+	 *
+	 * @var array
+	 */
+	private $to = array( 'https://www.w3.org/ns/activitystreams#Public' );
+
+	/**
+	 * List of audience
+	 *
+	 * Also used for visibility
+	 *
+	 * @var array
+	 */
+	private $cc = array();
+
 	/**
 	 * Constructor
 	 *
@@ -111,6 +129,7 @@ class Post {
 	 */
 	public function __construct( $post ) {
 		$this->post = \get_post( $post );
+		$this->add_to( \get_rest_url( null, '/activitypub/1.0/users/' . intval( $this->get_post_author() ) . '/followers' ) );
 	}
 
 	/**
@@ -134,6 +153,20 @@ class Post {
 		if ( \strncasecmp( $method, 'set', 3 ) === 0 ) {
 			$this->$var = $params[0];
 		}
+
+		if ( \strncasecmp( $method, 'add', 3 ) === 0 ) {
+			if ( ! is_array( $this->$var ) ) {
+				$this->$var = $params[0];
+			}
+
+			if ( is_array( $params[0] ) ) {
+				$this->$var = array_merge( $this->$var, $params[0] );
+			} else {
+				array_push( $this->$var, $params[0] );
+			}
+
+			$this->$var = array_unique( $this->$var );
+		}
 	}
 
 	/**
@@ -155,8 +188,8 @@ class Post {
 			'contentMap' => array(
 				\strstr( \get_locale(), '_', true ) => $this->get_content(),
 			),
-			'to' => array( 'https://www.w3.org/ns/activitystreams#Public' ),
-			'cc' => array( 'https://www.w3.org/ns/activitystreams#Public' ),
+			'to' => $this->get_to(),
+			'cc' => $this->get_cc(),
 			'attachment' => $this->get_attachments(),
 			'tag' => $this->get_tags(),
 		);
diff --git a/includes/rest/class-inbox.php b/includes/rest/class-inbox.php
index 5d6b6ce..86aefd4 100644
--- a/includes/rest/class-inbox.php
+++ b/includes/rest/class-inbox.php
@@ -356,7 +356,7 @@ class Inbox {
 		$inbox = \Activitypub\get_inbox_by_actor( $object['actor'] );
 
 		// send "Accept" activity
-		$activity = new \Activitypub\Model\Activity( 'Accept', \Activitypub\Model\Activity::TYPE_SIMPLE );
+		$activity = new \Activitypub\Model\Activity( 'Accept' );
 		$activity->set_object( $object );
 		$activity->set_actor( \get_author_posts_url( $user_id ) );
 		$activity->set_to( $object['actor'] );
diff --git a/includes/rest/class-outbox.php b/includes/rest/class-outbox.php
index 615f06b..8749d11 100644
--- a/includes/rest/class-outbox.php
+++ b/includes/rest/class-outbox.php
@@ -102,7 +102,8 @@ class Outbox {
 
 			foreach ( $posts as $post ) {
 				$activitypub_post = new \Activitypub\Model\Post( $post );
-				$activitypub_activity = new \Activitypub\Model\Activity( 'Create', \Activitypub\Model\Activity::TYPE_NONE );
+				$activitypub_activity = new \Activitypub\Model\Activity( 'Create', false );
+
 				$activitypub_activity->from_post( $activitypub_post );
 				$json->orderedItems[] = $activitypub_activity->to_array(); // phpcs:ignore
 			}
diff --git a/tests/test-class-activitypub-activity-dispatcher.php b/tests/test-class-activitypub-activity-dispatcher.php
index dea7e38..0e503e5 100644
--- a/tests/test-class-activitypub-activity-dispatcher.php
+++ b/tests/test-class-activitypub-activity-dispatcher.php
@@ -28,7 +28,7 @@ class Test_Activitypub_Activity_Dispatcher extends ActivityPub_TestCase_Cache_HT
 		add_filter( 'pre_http_request', array( $pre_http_request, 'filter' ), 10, 3 );
 
 		$activitypub_post = new \Activitypub\Model\Post( $post );
-		\Activitypub\Activity_Dispatcher::send_post_activity( $activitypub_post );
+		\Activitypub\Activity_Dispatcher::send_create_activity( $activitypub_post );
 
 		$this->assertNotEmpty( $activitypub_post->get_content() );
 
@@ -69,7 +69,7 @@ class Test_Activitypub_Activity_Dispatcher extends ActivityPub_TestCase_Cache_HT
 		add_filter( 'pre_http_request', array( $pre_http_request, 'filter' ), 10, 3 );
 
 		$activitypub_post = new \Activitypub\Model\Post( $post );
-		\Activitypub\Activity_Dispatcher::send_post_activity( $activitypub_post );
+		\Activitypub\Activity_Dispatcher::send_create_activity( $activitypub_post );
 
 		$this->assertNotEmpty( $activitypub_post->get_content() );
 
diff --git a/tests/test-class-activitypub-activity.php b/tests/test-class-activitypub-activity.php
index 254d860..7fe6551 100644
--- a/tests/test-class-activitypub-activity.php
+++ b/tests/test-class-activitypub-activity.php
@@ -19,10 +19,10 @@ class Test_Activitypub_Activity extends WP_UnitTestCase {
 
 		$activitypub_post = new \Activitypub\Model\Post( $post );
 
-		$activitypub_activity = new \Activitypub\Model\Activity( 'Create', \Activitypub\Model\Activity::TYPE_FULL );
+		$activitypub_activity = new \Activitypub\Model\Activity( 'Create' );
 		$activitypub_activity->from_post( $activitypub_post );
 
-		$this->assertContains( \get_rest_url( null, '/activitypub/1.0/users/1/followers' ), $activitypub_activity->get_cc() );
+		$this->assertContains( \get_rest_url( null, '/activitypub/1.0/users/1/followers' ), $activitypub_activity->get_to() );
 		$this->assertContains( 'https://example.com/alex', $activitypub_activity->get_cc() );
 
 		remove_all_filters( 'activitypub_extract_mentions' );