diff --git a/cloudflare.php b/cloudflare.php
index 1ce0457c..70013d16 100644
--- a/cloudflare.php
+++ b/cloudflare.php
@@ -11,6 +11,11 @@
 
 // The following constants are available. Add them to wp-config.php to enable.
 
+// To configure Cloudflare credentials via environment vars (defined elsewhere)
+// define('CLOUDFLARE_EMAIL', $_ENV['CLOUDFLARE_EMAIL']);
+// define('CLOUDFLARE_API_KEY', $_ENV['CLOUDFLARE_API_KEY']);
+// define('CLOUDFLARE_DOMAIN_NAME', $_ENV['CLOUDFLARE_DOMAIN_NAME']);
+
 // To enable HTTP/2 Server Push feature:
 // define('CLOUDFLARE_HTTP2_SERVER_PUSH_ACTIVE', true);
 
diff --git a/src/WordPress/DataStore.php b/src/WordPress/DataStore.php
index 279868d0..67d0d7eb 100755
--- a/src/WordPress/DataStore.php
+++ b/src/WordPress/DataStore.php
@@ -39,6 +39,10 @@ public function setWordPressWrapper(WordPressWrapper $wordPressWrapper)
      */
     public function createUserDataStore($client_api_key, $email, $unique_id, $user_key)
     {
+        if (defined('CLOUDFLARE_API_KEY') && defined('CLOUDFLARE_EMAIL')) {
+            return true;
+        }
+
         // Clear options
         $this->set(self::API_KEY, '');
         $this->set(self::EMAIL, '');
@@ -63,6 +67,10 @@ public function getHostAPIUserUniqueId()
      */
     public function getClientV4APIKey()
     {
+        if (defined('CLOUDFLARE_API_KEY') && CLOUDFLARE_API_KEY !== '') {
+            return CLOUDFLARE_API_KEY;
+        }
+
         return $this->get(self::API_KEY);
     }
 
@@ -79,6 +87,10 @@ public function getHostAPIUserKey()
      */
     public function getDomainNameCache()
     {
+        if (defined('CLOUDFLARE_DOMAIN_NAME') && CLOUDFLARE_DOMAIN_NAME !== '') {
+            return CLOUDFLARE_DOMAIN_NAME;
+        }
+
         $cachedDomainName = $this->get(self::CACHED_DOMAIN_NAME);
         if (empty($cachedDomainName)) {
             return;
@@ -92,6 +104,10 @@ public function getDomainNameCache()
      */
     public function setDomainNameCache($domainName)
     {
+        if (defined('CLOUDFLARE_DOMAIN_NAME') && CLOUDFLARE_DOMAIN_NAME !== '') {
+            return;
+        }
+
         return $this->set(self::CACHED_DOMAIN_NAME, $domainName);
     }
 
@@ -100,6 +116,10 @@ public function setDomainNameCache($domainName)
      */
     public function getCloudFlareEmail()
     {
+        if (defined('CLOUDFLARE_EMAIL') && CLOUDFLARE_EMAIL !== '') {
+            return CLOUDFLARE_EMAIL;
+        }
+
         return $this->get(self::EMAIL);
     }