diff --git a/lang/en/hub.php b/lang/en/hub.php
index a82ad1af2fc..24fd764aba4 100644
--- a/lang/en/hub.php
+++ b/lang/en/hub.php
@@ -89,6 +89,7 @@ $string['nohubselected'] = 'No hub selected';
 $string['none'] = 'None';
 $string['operation'] = 'Actions';
 $string['participantnumberaverage'] = 'Average number of participants ({$a})';
+$string['pluginusagedata'] = 'Plugin usage data collected from the following pages: <a href="{$a->overview}">Plugin overview</a>, <a href="{$a->activities}">Activities</a>, and <a href="{$a->blocks}">Blocks</a>';
 $string['policyagreed'] = 'Privacy notice and data processing agreement';
 $string['policyagreeddesc'] = 'I agree to the <a href="{$a}" target="_blank">Privacy notice and data processing agreement</a>';
 $string['postaladdress'] = 'Postal address';
diff --git a/lib/classes/hub/registration.php b/lib/classes/hub/registration.php
index 0b1cc88037d..16f0fb8e03e 100644
--- a/lib/classes/hub/registration.php
+++ b/lib/classes/hub/registration.php
@@ -30,6 +30,7 @@ use moodle_url;
 use context_system;
 use stdClass;
 use html_writer;
+use core_plugin_manager;
 
 /**
  * Methods to use when registering the site at the moodle sites directory.
@@ -62,6 +63,8 @@ class registration {
         2020022600 => ['activeusers', 'activeparticipantnumberaverage'],
         // Database type, course date info, site theme, primary auth type added in Moodle 4.2.
         2023021700 => ['dbtype', 'coursesnodates', 'sitetheme', 'primaryauthtype'],
+        // Plugin usage added in Moodle 4.5.
+        2023072300 => ['pluginusage'],
     ];
 
     /** @var string Site privacy: not displayed */
@@ -185,6 +188,7 @@ class registration {
         $siteinfo['dbtype'] = $CFG->dbtype;
         $siteinfo['coursesnodates'] = $DB->count_records_select('course', 'enddate = ?', [0]) - 1;
         $siteinfo['sitetheme'] = get_config('core', 'theme');
+        $siteinfo['pluginusage'] = json_encode(self::get_plugin_usage_data());
 
         // Primary auth type.
         $primaryauthsql = 'SELECT auth, count(auth) as tc FROM {user} GROUP BY auth ORDER BY tc DESC';
@@ -238,6 +242,11 @@ class registration {
         if (preg_match('/^(\d+\.\d.*?)[\. ]/', $moodlerelease, $matches)) {
             $moodlerelease = $matches[1];
         }
+        $pluginusagelinks = [
+            'overview' => new moodle_url('/admin/plugins.php'),
+            'activities' => new moodle_url('/admin/modules.php'),
+            'blocks' => new moodle_url('/admin/blocks.php'),
+        ];
         $senddata = [
             'moodlerelease' => get_string('sitereleasenum', 'hub', $moodlerelease),
             'courses' => get_string('coursesnumber', 'hub', $siteinfo['courses']),
@@ -267,6 +276,7 @@ class registration {
             'coursesnodates' => get_string('coursesnodates', 'hub', $siteinfo['coursesnodates']),
             'sitetheme' => get_string('sitetheme', 'hub', $siteinfo['sitetheme']),
             'primaryauthtype' => get_string('primaryauthtype', 'hub', $siteinfo['primaryauthtype']),
+            'pluginusage' => get_string('pluginusagedata', 'hub', $pluginusagelinks),
         ];
 
         foreach ($senddata as $key => $str) {
@@ -608,4 +618,40 @@ class registration {
             redirect(new moodle_url('/admin/registration/index.php', ['returnurl' => $returnurl->out_as_local_url(false)]));
         }
     }
+
+    /**
+     * Return a list of plugins.
+     *
+     * Only blocks and activities will include instance counts.
+     *
+     * @return array
+     */
+    public static function get_plugin_usage_data(): array {
+        global $DB;
+
+        $pluginman = core_plugin_manager::instance();
+        $plugininfo = $pluginman->get_plugins();
+        $data = [];
+
+        foreach ($plugininfo as $plugins) {
+            foreach ($plugins as $plugin) {
+                // Plugins are considered enabled if $plugin->is_enabled() returns true or null.
+                // Plugins that return null cannot be disabled.
+                $enabled = ($plugin->is_enabled() || is_null($plugin->is_enabled()));
+                $data[$plugin->type][$plugin->name]['enabled'] = $enabled ? 1 : 0;
+
+                if ($plugin->type === 'mod') {
+                    $mid = $DB->get_field('modules', 'id', ['name' => $plugin->name]);
+                    $count = $DB->count_records('course_modules', ['module' => $mid]);
+                    $data[$plugin->type][$plugin->name]['count'] = $count;
+
+                } else if ($plugin->type === 'block') {
+                    $count = $DB->count_records('block_instances', ['blockname' => $plugin->name]);
+                    $data[$plugin->type][$plugin->name]['count'] = $count;
+                }
+            }
+        }
+
+        return $data;
+    }
 }
diff --git a/lib/tests/hub/registration_test.php b/lib/tests/hub/registration_test.php
index d0ab3885d8a..e7acddcfdaf 100644
--- a/lib/tests/hub/registration_test.php
+++ b/lib/tests/hub/registration_test.php
@@ -22,15 +22,12 @@ namespace core\hub;
  * @package   core
  * @copyright  2023 Matt Porritt <matt.porritt@moodle.com>
  * @license   http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
- *
+ * @covers \core\hub\registration
  */
 class registration_test extends \advanced_testcase {
 
     /**
      * Test getting site registration information.
-     *
-     * return void
-     * @covers \core\hub\registration
      */
     public function test_get_site_info(): void {
         global $CFG;
@@ -50,4 +47,42 @@ class registration_test extends \advanced_testcase {
         $this->assertEquals('manual', $siteinfo['primaryauthtype']);
         $this->assertEquals(1, $siteinfo['coursesnodates']);
     }
+
+    /**
+     * Test getting the plugin usage data.
+     */
+    public function test_get_plugin_usage(): void {
+        global $DB;
+        $this->resetAfterTest();
+
+        // Create some courses with end dates.
+        $generator = $this->getDataGenerator();
+        $course = $generator->create_course();
+
+        // Create some assignments.
+        $generator->create_module('assign', ['course' => $course->id]);
+        $generator->create_module('assign', ['course' => $course->id]);
+        $generator->create_module('assign', ['course' => $course->id]);
+
+        // Create some quizzes.
+        $generator->create_module('quiz', ['course' => $course->id]);
+        $generator->create_module('quiz', ['course' => $course->id]);
+
+        // Add some blocks.
+        $generator->create_block('online_users');
+        $generator->create_block('online_users');
+        $generator->create_block('online_users');
+        $generator->create_block('online_users');
+
+        // Disabled a plugin.
+        $DB->set_field('modules', 'visible', 0, ['name' => 'feedback']);
+
+        // Check our plugin usage counts and enabled states are correct.
+        $pluginusage = registration::get_plugin_usage_data();
+        $this->assertEquals(3, $pluginusage['mod']['assign']['count']);
+        $this->assertEquals(2, $pluginusage['mod']['quiz']['count']);
+        $this->assertEquals(4, $pluginusage['block']['online_users']['count']);
+        $this->assertEquals(0, $pluginusage['mod']['feedback']['enabled']);
+        $this->assertEquals(1, $pluginusage['mod']['assign']['enabled']);
+    }
 }