diff --git a/core/INSTALL.txt b/core/INSTALL.txt
index 910b5aaf123698a69ef8b44bb7138c71264b56e6..3ae63b882f145980875b00d6b2665abd28242032 100644
--- a/core/INSTALL.txt
+++ b/core/INSTALL.txt
@@ -61,7 +61,8 @@ Drupal requires:
 
 For more detailed information about Drupal requirements, including a list of
 PHP extensions and configurations that are required, see "System requirements"
-(https://www.drupal.org/requirements) in the Drupal.org online documentation.
+(https://www.drupal.org/docs/system-requirements) in the Drupal.org online
+documentation.
 
 For detailed information on how to configure a test server environment using a
 variety of operating systems and web servers, see "Local server setup"
diff --git a/core/modules/aggregator/aggregator.install b/core/modules/aggregator/aggregator.install
index ee23b29850a2cc33e739d42c9cfe3dc57c6942be..66d728335a4864a182aaf7c09306bde45ba9b990 100644
--- a/core/modules/aggregator/aggregator.install
+++ b/core/modules/aggregator/aggregator.install
@@ -17,7 +17,7 @@ function aggregator_requirements($phase) {
   ];
   if (!$has_curl) {
     $requirements['curl']['severity'] = REQUIREMENT_ERROR;
-    $requirements['curl']['description'] = t('The Aggregator module requires the <a href="https://secure.php.net/manual/en/curl.setup.php">PHP cURL library</a>. For more information, see the <a href="https://www.drupal.org/requirements/php/curl">online information on installing the PHP cURL extension</a>.');
+    $requirements['curl']['description'] = t('The Aggregator module requires the <a href="https://secure.php.net/manual/en/curl.setup.php">PHP cURL library</a>. For more information, see the <a href="https://www.drupal.org/docs/system-requirements/php-requirements#curl">online information on installing the PHP cURL extension</a>.');
   }
   return $requirements;
 }
diff --git a/core/modules/system/system.install b/core/modules/system/system.install
index a981accf37a82ba196fbcbe948065d4a09c428d2..66ac09793a755a9409d7006e3caa51910ec2939f 100644
--- a/core/modules/system/system.install
+++ b/core/modules/system/system.install
@@ -269,7 +269,7 @@ function system_requirements($phase) {
 
   if (!empty($missing_extensions)) {
     $description = t('Drupal requires you to enable the PHP extensions in the following list (see the <a href=":system_requirements">system requirements page</a> for more information):', [
-      ':system_requirements' => 'https://www.drupal.org/requirements',
+      ':system_requirements' => 'https://www.drupal.org/docs/system-requirements',
     ]);
 
     // We use twig inline_template to avoid twig's autoescape.
@@ -396,7 +396,7 @@ function system_requirements($phase) {
     $database_ok = extension_loaded('pdo');
     if (!$database_ok) {
       $pdo_message = t('Your web server does not appear to support PDO (PHP Data Objects). Ask your hosting provider if they support the native PDO extension. See the <a href=":link">system requirements</a> page for more information.', [
-        ':link' => 'https://www.drupal.org/requirements/pdo',
+        ':link' => 'https://www.drupal.org/docs/system-requirements/php-requirements#database',
       ]);
     }
     else {
@@ -405,7 +405,7 @@ function system_requirements($phase) {
       if (empty($drivers)) {
         $database_ok = FALSE;
         $pdo_message = t('Your web server does not appear to support any common PDO database extensions. Check with your hosting provider to see if they support PDO (PHP Data Objects) and offer any databases that <a href=":drupal-databases">Drupal supports</a>.', [
-          ':drupal-databases' => 'https://www.drupal.org/requirements/database',
+          ':drupal-databases' => 'https://www.drupal.org/docs/system-requirements/database-server-requirements',
         ]);
       }
       // Make sure the native PDO extension is available, not the older PEAR
@@ -413,7 +413,7 @@ function system_requirements($phase) {
       if (!defined('PDO::ATTR_DEFAULT_FETCH_MODE')) {
         $database_ok = FALSE;
         $pdo_message = t('Your web server seems to have the wrong version of PDO installed. Drupal requires the PDO extension from PHP core. This system has the older PECL version. See the <a href=":link">system requirements</a> page for more information.', [
-          ':link' => 'https://www.drupal.org/requirements/pdo#pecl',
+          ':link' => 'https://www.drupal.org/docs/system-requirements/php-requirements#database',
         ]);
       }
     }
diff --git a/core/modules/system/system.module b/core/modules/system/system.module
index 7552c3221025494690b0e2f58c08c5c0283acb1d..064afafbcedd14174f370fc7eed22db71dddc90e 100644
--- a/core/modules/system/system.module
+++ b/core/modules/system/system.module
@@ -139,7 +139,7 @@ function system_help($route_name, RouteMatchInterface $route_match) {
       break;
 
     case 'system.status':
-      return '<p>' . t("Here you can find a short overview of your site's parameters as well as any problems detected with your installation. It may be useful to copy and paste this information into support requests filed on Drupal.org's support forums and project issue queues. Before filing a support request, ensure that your web server meets the <a href=\":system-requirements\">system requirements.</a>", [':system-requirements' => 'https://www.drupal.org/requirements']) . '</p>';
+      return '<p>' . t("Here you can find a short overview of your site's parameters as well as any problems detected with your installation. It may be useful to copy and paste this information into support requests filed on Drupal.org's support forums and project issue queues. Before filing a support request, ensure that your web server meets the <a href=\":system-requirements\">system requirements.</a>", [':system-requirements' => 'https://www.drupal.org/docs/system-requirements']) . '</p>';
   }
 }