diff --git a/cloud/rax_dns b/cloud/rax_dns
index c12d09fb1ad..2a5b0be7b1a 100644
--- a/cloud/rax_dns
+++ b/cloud/rax_dns
@@ -44,6 +44,10 @@ options:
     description:
       - Time to live of domain in seconds
     default: 3600
+notes:
+  - "It is recommended that plays utilizing this module be run with C(serial: 1)
+    to avoid exceeding the API request limit imposed by the Rackspace CloudDNS
+    API"
 author: Matt Martz
 extends_documentation_fragment: rackspace
 '''
diff --git a/cloud/rax_dns_record b/cloud/rax_dns_record
index d1e79983604..49e14debc55 100644
--- a/cloud/rax_dns_record
+++ b/cloud/rax_dns_record
@@ -67,6 +67,10 @@ options:
       - SRV
       - TXT
     default: A
+notes:
+  - "It is recommended that plays utilizing this module be run with C(serial: 1)
+    to avoid exceeding the API request limit imposed by the Rackspace CloudDNS
+    API"
 author: Matt Martz
 extends_documentation_fragment: rackspace
 '''