diff --git a/src/js/_enqueues/admin/site-health.js b/src/js/_enqueues/admin/site-health.js
index 6dbe1462d215..f5a6fed06f74 100644
--- a/src/js/_enqueues/admin/site-health.js
+++ b/src/js/_enqueues/admin/site-health.js
@@ -179,7 +179,8 @@ jQuery( document ).ready( function( $ ) {
 					ajaxurl,
 					data,
 					function( response ) {
-						AppendIssue( response.data );
+						/** This filter is documented in wp-admin/includes/class-wp-site-health.php */
+						AppendIssue( wp.hooks.applyFilters( 'site_status_test_result', response.data ) );
 						maybeRunNextAsyncTest();
 					}
 				);
diff --git a/src/wp-admin/includes/class-wp-site-health.php b/src/wp-admin/includes/class-wp-site-health.php
index c41534f7b4bd..5f7c6bc7b7cb 100644
--- a/src/wp-admin/includes/class-wp-site-health.php
+++ b/src/wp-admin/includes/class-wp-site-health.php
@@ -96,13 +96,35 @@ public function enqueue_scripts() {
 					);
 
 					if ( method_exists( $this, $test_function ) && is_callable( array( $this, $test_function ) ) ) {
-						$health_check_js_variables['site_status']['direct'][] = call_user_func( array( $this, $test_function ) );
+						/**
+						 * Filter the output of a finished Site Health test.
+						 *
+						 * @since 5.3.0
+						 *
+						 * @param array $test_result {
+						 *     An associated array of test result data.
+						 *
+						 *     @param string $label  A label describing the test, and is used as a header in the output.
+						 *     @param string $status The status of the test, which can be a value of `good`, `recommended` or `critical`.
+						 *     @param array  $badge {
+						 *         Tests are put into categories which have an associated badge shown, these can be modified and assigned here.
+						 *
+						 *         @param string $label The test label, for example `Performance`.
+						 *         @param string $color Default `blue`. A string representing a color to use for the label.
+						 *     }
+						 *     @param string $description A more descriptive explanation of what the test looks for, and why it is important for the end user.
+						 *     @param string $actions     An action to direct the user to where they can resolve the issue, if one exists.
+						 *     @param string $test        The name of the test being ran, used as a reference point.
+						 * }
+						 */
+						$health_check_js_variables['site_status']['direct'][] = apply_filters( 'site_status_test_result', call_user_func( array( $this, $test_function ) ) );
 						continue;
 					}
 				}
 
 				if ( is_callable( $test['test'] ) ) {
-					$health_check_js_variables['site_status']['direct'][] = call_user_func( $test['test'] );
+					/** This filter is documented in wp-admin/includes/class-wp-site-health.php */
+					$health_check_js_variables['site_status']['direct'][] = apply_filters( 'site_status_test_result', call_user_func( $test['test'] ) );
 				}
 			}