diff -u b/core/modules/simpletest/simpletest.install b/core/modules/simpletest/simpletest.install
--- b/core/modules/simpletest/simpletest.install
+++ b/core/modules/simpletest/simpletest.install
@@ -6,6 +6,7 @@
  */
 
 use Drupal\Component\Utility\Environment;
+use Drupal\Core\Url;
 
 /**
  * Minimum value of PHP memory_limit for SimpleTest.
@@ -27,7 +28,7 @@
   );
   if (!$has_curl) {
     $requirements['curl']['severity'] = REQUIREMENT_ERROR;
-    $requirements['curl']['description'] = t('The PHP <a href="@curl_url">cURL</a> library needs to be installed on the server. You should check the cURL status in PHP via phpinfo() or in the command line via `php -m | grep curl`. On Unix, you have to install the php5-curl extension. On Windows XAMPP, you have to enable the cURL extension by removing the ";" before "extension=php_curl.dll". Apache/nginx must be restarted after applying changes to the server.', array('@curl_url' => 'http://php.net/manual/curl.setup.php'));
+    $requirements['curl']['description'] = t('The <a href="http://php.net/manual/curl.setup.php">PHP cURL library</a> needs to be installed on the server. You can check the cURL status via the <a href="@phpinfo_url">phpinfo() page</a>. To install the cURL library on Unix, you have to install the php5-curl extension. On Windows XAMPP, you have to enable the cURL extension by removing the ";" before "extension=php_curl.dll". Apache/nginx must be restarted after applying changes to the server.', array('@phpinfo_url' => (new Url('system.php'))->toString()));
   }
 
   // SimpleTest currently needs 2 cURL options which are incompatible with