diff --git a/includes/class-activitypub-outbox.php b/includes/class-activitypub-outbox.php
index 9a4e383..e2ef4ef 100644
--- a/includes/class-activitypub-outbox.php
+++ b/includes/class-activitypub-outbox.php
@@ -60,8 +60,9 @@ class Activitypub_Outbox {
 		) );
 
 		$json->first = add_query_arg( 'page', 0, $json->partOf );
-		$json->last  = add_query_arg( 'page', ( $json->totalItems%10 )-1, $json->partOf );
-		if ( $json->last < $page ) {
+		$json->last  = add_query_arg( 'page', ( ceil ( $json->totalItems / 10 ) ) - 1, $json->partOf );
+
+		if ( ( ceil ( $json->totalItems / 10 ) ) - 1 > $page ) {
 			$json->next  = add_query_arg( 'page', ++$page, $json->partOf );
 		}
 
@@ -87,21 +88,27 @@ class Activitypub_Outbox {
 	public static function post_to_json( $post ) {
 		$json = new stdClass();
 
-		$json->published = $post->post_date;
-		$json->id        = $post->guid;
+		$json->published = date( 'Y-m-d\TH:i:s\Z', strtotime( $post->post_date ) );
+		$json->id        = $post->guid . '&activitypub';
 		$json->type      = 'Create';
-		$json->actor     = 'https://mastodon.social/users/pfefferle';
+		$json->actor      = get_author_posts_url( $post->post_author );
 		$json->to        = array( 'https://www.w3.org/ns/activitystreams#Public' );
+		$json->cc        = array( 'https://www.w3.org/ns/activitystreams#Public' );
 
 		$json->object = array(
 			'id'         => $post->guid,
 			'type'       => 'Note',
-			'published'  => $post->post_date,
+			'published'  => date( 'Y-m-d\TH:i:s\Z', strtotime( $post->post_date ) ),
 			'to'         => array( 'https://www.w3.org/ns/activitystreams#Public' ),
-			'content'    => $post->post_content,
+			'cc'         => array( 'https://www.w3.org/ns/activitystreams#Public' ),
+			'summary'    => null,
+			'inReplyTo'  => null,
+			'content'    => esc_html( $post->post_content ),
 			'contentMap' => array(
 				strstr( get_locale(), '_', true ) => $post->post_content,
 			),
+			'attachment' => array(),
+			'tag'        => array(),
 		);
 
 		return $json;
diff --git a/includes/class-activitypub.php b/includes/class-activitypub.php
index 8fedde9..86da12f 100644
--- a/includes/class-activitypub.php
+++ b/includes/class-activitypub.php
@@ -30,7 +30,8 @@ class Activitypub {
 
 		if (
 			! in_array( 'application/activity+json', $accept, true ) &&
-			! in_array( 'application/ld+json', $accept, true )
+			! in_array( 'application/ld+json', $accept, true ) &&
+			! in_array( 'application/json', $accept, true )
 		) {
 			return $template;
 		}
@@ -48,7 +49,7 @@ class Activitypub {
 	public static function add_webfinger_discovery( $array, $resource, $user ) {
 		$array['links'][] = array(
 			'rel'  => 'self',
-			'type' => 'aplication/activity+json',
+			'type' => 'application/activity+json',
 			'href' => get_author_posts_url( $user->ID ),
 		);
 
diff --git a/templates/profile.php b/templates/profile.php
index cc17587..770a076 100644
--- a/templates/profile.php
+++ b/templates/profile.php
@@ -11,8 +11,8 @@ $json->{'@context'} = array(
 $json->id                = get_author_posts_url( $author_id );
 $json->type              = 'Person';
 $json->name              = get_the_author_meta( 'display_name', $author_id );
-$json->summary           = get_the_author_meta( 'description', $author_id );
-$json->preferredUsername = get_the_author(); // phpcs:ignore
+$json->summary           = wp_strip_all_tags( get_the_author_meta( 'description', $author_id ) );
+$json->preferredUsername = get_the_author_meta( 'login', $author_id ); // phpcs:ignore
 $json->url               = get_author_posts_url( $author_id );
 $json->icon              = array(
 	'type' => 'Image',
@@ -26,6 +26,7 @@ if ( has_header_image() ) {
 	);
 }
 
+$json->inbox  = get_rest_url( null, "/activitypub/1.0/users/$author_id/inbox" );
 $json->outbox = get_rest_url( null, "/activitypub/1.0/users/$author_id/outbox" );
 
 if ( method_exists( 'Magic_Sig', 'get_public_key' ) ) {