diff --git a/README.md b/README.md
index d7a9662..3a3a360 100644
--- a/README.md
+++ b/README.md
@@ -94,7 +94,7 @@ In order for webfinger to work, it must be mapped to the root directory of the U
 
 Add the following to the .htaccess file in the root directory:
 
-	RedirectMatch "^\/\.well-known(.*)$" "\/blog\/\.well-known$1"
+	RedirectMatch "^\/\.well-known/(webfinger|nodeinfo|x-nodeinfo2)(.*)$" "\/blog\/\.well-known$1$2"
 
 Where 'blog' is the path to the subdirectory at which your blog resides.
 
@@ -115,6 +115,8 @@ Project maintained on GitHub at [automattic/wordpress-activitypub](https://githu
 
 ### Next ###
 
+* Compatibility: add a new conditional, `\Activitypub\is_activitypub_request()`, to allow third-party plugins to detect ActivityPub requests.
+* Compatibility: add hooks to allow modifying images returned in ActivityPub requests.
 * Compatibility: indicate that the plugin is compatible and has been tested with the latest version of WordPress, 6.2.
 
 ### 0.17.0 ###
diff --git a/activitypub.php b/activitypub.php
index 6d1a793..8ca78f8 100644
--- a/activitypub.php
+++ b/activitypub.php
@@ -53,7 +53,7 @@ function init() {
 	Health_Check::init();
 	Scheduler::init();
 }
-\add_action( 'plugins_loaded', '\Activitypub\init' );
+\add_action( 'plugins_loaded', __NAMESPACE__ . '\init' );
 
 /**
  * Class Autoloader
@@ -142,11 +142,25 @@ function plugin_settings_link( $actions ) {
 /**
  * Only load code that needs BuddyPress to run once BP is loaded and initialized.
  */
-function enable_buddypress_features() {
-	require_once \dirname( __FILE__ ) . '/integration/class-buddypress.php';
-	Integration\Buddypress::init();
-}
-add_action( 'bp_include', '\Activitypub\enable_buddypress_features' );
+add_action(
+	'bp_include',
+	function() {
+		require_once \dirname( __FILE__ ) . '/integration/class-buddypress.php';
+		Integration\Buddypress::init();
+	},
+	0
+);
+
+add_action(
+	'plugins_loaded',
+	function() {
+		if ( defined( 'WP_SWEEP_VERSION' ) ) {
+			require_once \dirname( __FILE__ ) . '/integration/class-wp-sweep.php';
+			Integration\Wp_Sweep::init();
+		}
+	},
+	0
+);
 
 /**
  * `get_plugin_data` wrapper
diff --git a/includes/collection/class-followers.php b/includes/collection/class-followers.php
index 8a271f6..142a9a1 100644
--- a/includes/collection/class-followers.php
+++ b/includes/collection/class-followers.php
@@ -19,6 +19,7 @@ use function Activitypub\get_remote_metadata_by_actor;
  */
 class Followers {
 	const TAXONOMY = 'activitypub-followers';
+	const CACHE_KEY_INBOXES = 'follower_inboxes_%s';
 
 	/**
 	 * Register WordPress hooks/actions and register Taxonomy
@@ -225,6 +226,7 @@ class Followers {
 		if ( is_wp_error( $result ) ) {
 			return $result;
 		} else {
+			wp_cache_delete( sprintf( self::CACHE_KEY_INBOXES, $user_id ), 'activitypub' );
 			return $follower;
 		}
 	}
@@ -238,6 +240,7 @@ class Followers {
 	 * @return bool|WP_Error True on success, false or WP_Error on failure.
 	 */
 	public static function remove_follower( $user_id, $actor ) {
+		wp_cache_delete( sprintf( self::CACHE_KEY_INBOXES, $user_id ), 'activitypub' );
 		return wp_remove_object_terms( $user_id, $actor, self::TAXONOMY );
 	}
 
@@ -338,6 +341,25 @@ class Followers {
 		return $items;
 	}
 
+	/**
+	 * Get all Followers
+	 *
+	 * @param array $args The WP_Term_Query arguments.
+	 *
+	 * @return array The Term list of Followers.
+	 */
+	public static function get_all_followers( $args = array() ) {
+		$defaults = array(
+			'taxonomy'   => self::TAXONOMY,
+			'hide_empty' => false,
+		);
+
+		$args  = wp_parse_args( $args, $defaults );
+		$terms = new WP_Term_Query( $args );
+
+		return $terms->get_terms();
+	}
+
 	/**
 	 * Count the total number of followers
 	 *
@@ -357,6 +379,13 @@ class Followers {
 	 * @return array The list of Inboxes
 	 */
 	public static function get_inboxes( $user_id ) {
+		$cache_key = sprintf( self::CACHE_KEY_INBOXES, $user_id );
+		$inboxes = wp_cache_get( $cache_key, 'activitypub' );
+
+		if ( $inboxes ) {
+			return $inboxes;
+		}
+
 		// get all Followers of a ID of the WordPress User
 		$terms = new WP_Term_Query(
 			array(
@@ -390,7 +419,10 @@ class Followers {
 			)
 		);
 
-		return array_filter( $results );
+		$inboxes = array_filter( $results );
+		wp_cache_set( $cache_key, $inboxes, 'activitypub' );
+
+		return $inboxes;
 	}
 
 	/**
diff --git a/integration/class-buddypress.php b/integration/class-buddypress.php
index 1087f47..e4ec40e 100644
--- a/integration/class-buddypress.php
+++ b/integration/class-buddypress.php
@@ -3,7 +3,7 @@ namespace Activitypub\Integration;
 
 class Buddypress {
 	public static function init() {
-		\add_filter( 'activitypub_json_author_array', array( 'Activitypub\Integration\Buddypress', 'add_user_metadata' ), 11, 2 );
+		\add_filter( 'activitypub_json_author_array', array( self::class, 'add_user_metadata' ), 11, 2 );
 	}
 
 	public static function add_user_metadata( $object, $author_id ) {
diff --git a/integration/class-wp-sweep.php b/integration/class-wp-sweep.php
new file mode 100644
index 0000000..730edba
--- /dev/null
+++ b/integration/class-wp-sweep.php
@@ -0,0 +1,50 @@
+<?php
+namespace Activitypub\Integration;
+
+use Activitypub\Collection\Followers;
+
+/**
+ * Manages the compatibility with WP Sweep.
+ *
+ * @link https://wordpress.org/plugins/wp-sweep/
+ * @link https://github.com/polylang/polylang/tree/master/integrations/wp-sweep
+ */
+class Wp_Sweep {
+	/**
+	 * Setups actions.
+	 *
+	 * @return void
+	 */
+	public static function init() {
+		add_filter( 'wp_sweep_excluded_taxonomies', array( self::class, 'excluded_taxonomies' ) );
+		add_filter( 'wp_sweep_excluded_termids', array( self::class, 'excluded_termids' ), 0 );
+	}
+
+	/**
+	 * Add 'activitypub-followers' to excluded taxonomies otherwise terms loose their language
+	 * and translation group.
+	 *
+	 * @param array $excluded_taxonomies List of taxonomies excluded from sweeping.
+	 *
+	 * @return array The list of taxonomies excluded from sweeping.
+	 */
+	public static function excluded_taxonomies( $excluded_taxonomies ) {
+		return array_merge( $excluded_taxonomies, array( Followers::TAXONOMY ) );
+	}
+
+	/**
+	 * Add the translation of the default taxonomy terms and our language terms to the excluded terms.
+	 *
+	 * @param array $excluded_term_ids List of term ids excluded from sweeping.
+	 *
+	 * @return array The list of term ids excluded from sweeping.
+	 */
+	public static function excluded_termids( $excluded_term_ids ) {
+		// We got a list of excluded terms (defaults and parents). Let exclude their translations too.
+		$followers = Followers::get_all_followers( array( 'fields' => 'ids' ) );
+
+		$excluded_term_ids = array_merge( $excluded_term_ids, $followers );
+
+		return array_unique( $excluded_term_ids );
+	}
+}
diff --git a/readme.txt b/readme.txt
index c08f455..0d2727b 100644
--- a/readme.txt
+++ b/readme.txt
@@ -94,7 +94,7 @@ In order for webfinger to work, it must be mapped to the root directory of the U
 
 Add the following to the .htaccess file in the root directory:
 
-	RedirectMatch "^\/\.well-known(.*)$" "\/blog\/\.well-known$1"
+	RedirectMatch "^\/\.well-known/(webfinger|nodeinfo|x-nodeinfo2)(.*)$" "\/blog\/\.well-known$1$2"
 
 Where 'blog' is the path to the subdirectory at which your blog resides.
 
diff --git a/templates/settings.php b/templates/settings.php
index 2bfaed4..0daca17 100644
--- a/templates/settings.php
+++ b/templates/settings.php
@@ -120,8 +120,8 @@
 							<?php // phpcs:ignore WordPress.WP.GlobalVariablesOverride.Prohibited ?>
 							<?php foreach ( $post_types as $post_type ) { ?>
 								<li>
-									<input type="checkbox" id="activitypub_support_post_types" name="activitypub_support_post_types[]" value="<?php echo \esc_attr( $post_type->name ); ?>" <?php echo \checked( true, \in_array( $post_type->name, $support_post_types, true ) ); ?> />
-									<label for="<?php echo \esc_attr( $post_type->name ); ?>"><?php echo \esc_html( $post_type->label ); ?></label>
+									<input type="checkbox" id="activitypub_support_post_type_<?php echo \esc_attr( $post_type->name ); ?>" name="activitypub_support_post_types[]" value="<?php echo \esc_attr( $post_type->name ); ?>" <?php echo \checked( \in_array( $post_type->name, $support_post_types, true ) ); ?> />
+									<label for="activitypub_support_post_type_<?php echo \esc_attr( $post_type->name ); ?>"><?php echo \esc_html( $post_type->label ); ?></label>
 								</li>
 							<?php } ?>
 							</ul>