diff --git a/activitypub.php b/activitypub.php
index 2ee311b..da2eea2 100644
--- a/activitypub.php
+++ b/activitypub.php
@@ -20,6 +20,7 @@ namespace Activitypub;
  */
 function init() {
 	\defined( 'ACTIVITYPUB_EXCERPT_LENGTH' ) || \define( 'ACTIVITYPUB_EXCERPT_LENGTH', 400 );
+	\defined( 'ACTIVITYPUB_SHOW_PLUGIN_RECOMMENDATIONS' ) || \define( 'ACTIVITYPUB_SHOW_PLUGIN_RECOMMENDATIONS', true );
 	\defined( 'ACTIVITYPUB_MAX_IMAGE_ATTACHMENTS' ) || \define( 'ACTIVITYPUB_MAX_IMAGE_ATTACHMENTS', 3 );
 	\defined( 'ACTIVITYPUB_HASHTAGS_REGEXP' ) || \define( 'ACTIVITYPUB_HASHTAGS_REGEXP', '(?:(?<=\s)|(?<=<p>)|(?<=<br>)|^)#([A-Za-z0-9_]+)(?:(?=\s|[[:punct:]]|$))' );
 	\defined( 'ACTIVITYPUB_USERNAME_REGEXP' ) || \define( 'ACTIVITYPUB_USERNAME_REGEXP', '(?:([A-Za-z0-9_-]+)@((?:[A-Za-z0-9_-]+\.)+[A-Za-z]+))' );
diff --git a/includes/model/class-post.php b/includes/model/class-post.php
index 2b6c84c..ccb161c 100644
--- a/includes/model/class-post.php
+++ b/includes/model/class-post.php
@@ -109,6 +109,12 @@ class Post {
 		),
 		'blockquote' => array(),
 		'cite' => array(),
+		'code' => array(
+			'class' => array(),
+		),
+		'pre' => array(
+			'class' => array(),
+		),
 	);
 
 	/**
diff --git a/templates/welcome.php b/templates/welcome.php
index 6d6c24b..2b6a362 100644
--- a/templates/welcome.php
+++ b/templates/welcome.php
@@ -42,7 +42,7 @@
 		);
 		?>
 	</p>
-
+	<?php if ( ACTIVITYPUB_SHOW_PLUGIN_RECOMMENDATIONS ) : ?>
 	<hr />
 
 	<h3><?php \esc_html_e( 'Recommended Plugins', 'activitypub' ); ?></h3>
@@ -93,4 +93,5 @@
 			<p><a href="<?php echo \esc_url_raw( \admin_url( 'plugin-install.php?tab=plugin-information&plugin=nodeinfo&TB_iframe=true' ) ); ?>" class="thickbox open-plugin-details-modal button install-now" target="_blank"><?php \esc_html_e( 'Install NodeInfo Plugin for WordPress', 'activitypub' ); ?></a></p>
 		</div>
 	</div>
+	<?php endif; ?>
 </div>