--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/web/app/mu-plugins/disallow-indexing.php	Tue Apr 23 20:19:02 2019 +0200
@@ -0,0 +1,14 @@
+<?php
+/*
+Plugin Name:  Disallow Indexing
+Plugin URI:   https://roots.io/bedrock/
+Description:  Disallow indexing of your site on non-production environments.
+Version:      1.0.0
+Author:       Roots
+Author URI:   https://roots.io/
+License:      MIT License
+*/
+
+if (defined('WP_ENV') && WP_ENV !== 'production' && !is_admin()) {
+    add_action('pre_option_blog_public', '__return_zero');
+}