diff --git a/admin/tool/usertours/classes/cache.php b/admin/tool/usertours/classes/cache.php
index cefc7794d65..71857e4eec8 100644
--- a/admin/tool/usertours/classes/cache.php
+++ b/admin/tool/usertours/classes/cache.php
@@ -76,15 +76,22 @@ EOF;
     /**
      * Fetch all enabled tours matching the specified target.
      *
-     * @param   string      $targetmatch    The URL to match.
+     * @param   moodle_url  $targetmatch    The URL to match.
      */
-    public static function get_matching_tourdata($targetmatch) {
+    public static function get_matching_tourdata(\moodle_url $targetmatch) {
         $tours = self::get_enabled_tourdata();
 
-        return array_filter($tours, function($tour) use ($targetmatch) {
+        // Attempt to determine whether this is the front page.
+        // This is a special case because the frontpage uses a shortened page path making it difficult to detect exactly.
+        $isfrontpage = $targetmatch->compare(new \moodle_url('/'), URL_MATCH_BASE);
+        $target = $targetmatch->out_as_local_url();
+        return array_filter($tours, function($tour) use ($isfrontpage, $target) {
+            if ($isfrontpage && $tour->pathmatch === 'FRONTPAGE') {
+                return true;
+            }
             $pattern = preg_quote($tour->pathmatch, '@');
             $pattern = str_replace('%', '.*', $pattern);
-            return !!preg_match("@{$pattern}@", $targetmatch);
+            return !!preg_match("@{$pattern}@", $target);
         });
     }
 
diff --git a/admin/tool/usertours/classes/manager.php b/admin/tool/usertours/classes/manager.php
index af94d766628..f4ffa04beac 100644
--- a/admin/tool/usertours/classes/manager.php
+++ b/admin/tool/usertours/classes/manager.php
@@ -559,7 +559,7 @@ class manager {
     public static function get_matching_tours(\moodle_url $pageurl) {
         global $PAGE;
 
-        $tours = cache::get_matching_tourdata($pageurl->out_as_local_url());
+        $tours = cache::get_matching_tourdata($pageurl);
 
         foreach ($tours as $record) {
             $tour = tour::load_from_record($record);
diff --git a/admin/tool/usertours/lang/en/tool_usertours.php b/admin/tool/usertours/lang/en/tool_usertours.php
index 32cd9b4269d..87508d59228 100644
--- a/admin/tool/usertours/lang/en/tool_usertours.php
+++ b/admin/tool/usertours/lang/en/tool_usertours.php
@@ -79,7 +79,10 @@ Some example values include:
 * /my/% - to match the Dashboard
 * /course/view.php?id=2 - to match a specific course
 * /mod/forum/view.php% - to match the forum discussion list
-* /user/profile.php% - to match the user profile page';
+* /user/profile.php% - to match the user profile page
+
+If you wish to display a tour on the Site Home page, you can use the value: "FRONTPAGE".
+';
 $string['placement'] = 'Placement';
 $string['pluginname'] = 'User tours';
 $string['resettouronpage'] = 'Reset user tour on this page';
diff --git a/admin/tool/usertours/tests/cache_test.php b/admin/tool/usertours/tests/cache_test.php
index fdbdde0b0aa..4e0c2b12911 100644
--- a/admin/tool/usertours/tests/cache_test.php
+++ b/admin/tool/usertours/tests/cache_test.php
@@ -150,6 +150,14 @@ class cache_testcase extends advanced_testcase {
                 'name' => 'my_glob_2',
                 'pathmatch' => '/my/%'
             ],
+            (object) [
+                'name' => 'frontpage_only',
+                'pathmatch' => 'FRONTPAGE'
+            ],
+            (object) [
+                'name' => 'frontpage_match',
+                'pathmatch' => '/?%'
+            ],
         ];
 
         return [
@@ -163,6 +171,16 @@ class cache_testcase extends advanced_testcase {
                 '/my/view.php',
                 ['my_exact_1', 'my_glob_1', 'my_glob_2'],
             ],
+            'Special constant FRONTPAGE must match front page only' => [
+                $tourconfigs,
+                '/',
+                ['frontpage_only'],
+            ],
+            'Standard frontpage URL matches both the special constant, and a correctly formed pathmatch' => [
+                $tourconfigs,
+                '/?redirect=0',
+                ['frontpage_only', 'frontpage_match'],
+            ],
         ];
     }
 
@@ -181,7 +199,7 @@ class cache_testcase extends advanced_testcase {
             $this->helper_create_step((object) ['tourid' => $tour->get_id()]);
         }
 
-        $matches = \tool_usertours\cache::get_matching_tourdata((new moodle_url($targetmatch))->out_as_local_url());
+        $matches = \tool_usertours\cache::get_matching_tourdata(new moodle_url($targetmatch));
         $this->assertCount(count($expected), $matches);
 
         for ($i = 0; $i < count($matches); $i++) {