diff --git a/recacher.install b/recacher.install
index 119905f..dbab802 100644
--- a/recacher.install
+++ b/recacher.install
@@ -10,11 +10,9 @@
  * Implements hook_uninstall().
  */
 function recacher_uninstall() {
-  // Rather than using a database query to delete all queries, the best way of
-  // deleting variables in hook_uninstall() is to simply use variable_del().
-  // See https://www.drupal.org/node/2828832
   variable_del('recacher_cron_interval');
   variable_del('recacher_cron_next_execution');
+  variable_del('recacher_hook_exit');
   variable_del('recacher_max_urls');
   variable_del('recacher_watchdog');
 }
diff --git a/recacher.module b/recacher.module
index 2e0f68e..2ba3209 100644
--- a/recacher.module
+++ b/recacher.module
@@ -19,7 +19,7 @@ function recacher_permission() {
 }
 
 /**
- * Display help and module information
+ * Display help and module integration
  * Implements hook_help().
  * @param path which path of the site we're displaying help
  * @param arg array that holds the current path as would be returned from arg() function
@@ -133,6 +133,10 @@ function recacher_expire_cache($urls, $wildcards, $object_type, $object) {
       ))
       ->expression('expirations', 'expirations + :inc', array(':inc' => 1))
       ->execute();
+
+    // Leave a note for hook_exit() that there are URLs to be crawled.
+    $queued = &drupal_static(__FUNCTION__);
+    $queued = TRUE;
   }
 
   if ($paths = array_keys($wildcards, TRUE)) {
@@ -240,3 +244,19 @@ function recacher_crawler() {
 
   return count($dburls);
 }
+
+/**
+ * Implements hook_exit().
+ *
+ * Optionally trigger the crawler at the end of the page execution.
+ */
+function recacher_exit($destination = NULL) {
+  // See if this option is enabled.
+  if (variable_get('recrawler_hook_exit', FALSE)) {
+    // Check to see if anything was queued.
+    $queued = &drupal_static('recacher_expire_cache');
+    if ($queued) {
+      recacher_crawler();
+    }
+  }
+}
diff --git a/recacher_settings.inc b/recacher_settings.inc
index 3718e85..d1b643e 100644
--- a/recacher_settings.inc
+++ b/recacher_settings.inc
@@ -47,6 +47,13 @@ function recacher_admin($form, &$form_state) {
     '#required' => TRUE,
   );
 
+  $form['recrawler_hook_exit'] = array(
+    '#type' => 'checkbox',
+    '#title' => t('Re-cache immediately?'),
+    '#description' => t('This causes the recaching to occur at the end of the page request.'),
+    '#default_value' => variable_get('recrawler_hook_exit', FALSE),
+  );
+
   $form['recacher_run_now'] = array(
     '#markup' => '<p>'. l(t('Re-cache immediately'), 'admin/config/system/recacher/crawl') . ': ' . t('don\'t wait for the cron to run; warm caches of the expired pages immediately.') . '',
   );