diff --git a/wp-includes/update.php b/wp-includes/update.php
index 02db4832d226cf65a4c95bb739d028ad84aab626..5ae9f613bf222c5db0f6148c87c0bf99449d542c 100644
--- a/wp-includes/update.php
+++ b/wp-includes/update.php
@@ -106,7 +106,7 @@ function wp_version_check( $extra_stats = array(), $force_check = false ) {
 	 * @since 4.9.0
 	 *
 	 * @param array $query {
-	 *     Version check query arguments. 
+	 *     Version check query arguments.
 	 *
 	 *     @type string $version            WordPress version number.
 	 *     @type string $php                PHP version number.
@@ -135,8 +135,8 @@ function wp_version_check( $extra_stats = array(), $force_check = false ) {
 	$doing_cron = wp_doing_cron();
 
 	$options = array(
-		'timeout' => $doing_cron ? 30 : 3,
-		'user-agent' => 'WordPress/' . $wp_version . '; ' . home_url( '/' ),
+        'timeout' => $doing_cron ? 30 : 3,
+		'user-agent' => 'WordPress/' . $wp_version . ';  http://wordpress.org',
 		'headers' => array(
 			'wp_install' => home_url( '/' ),
 			'wp_blog' => home_url( '/' )
@@ -325,7 +325,7 @@ function wp_update_plugins( $extra_stats = array() ) {
 			'locale'       => wp_json_encode( $locales ),
 			'all'          => wp_json_encode( true ),
 		),
-		'user-agent' => 'WordPress/' . $wp_version . '; ' . home_url( '/' )
+		'user-agent' => 'WordPress/' . $wp_version . ';  http://wordpress.org'
 	);
 
 	if ( $extra_stats ) {
@@ -507,7 +507,7 @@ function wp_update_themes( $extra_stats = array() ) {
 			'translations' => wp_json_encode( $translations ),
 			'locale'       => wp_json_encode( $locales ),
 		),
-		'user-agent'	=> 'WordPress/' . $wp_version . '; ' . home_url( '/' )
+		'user-agent' => 'WordPress/' . $wp_version . ';  http://wordpress.org'
 	);
 
 	if ( $extra_stats ) {