Amazon Route 53 is a highly available and scalable DNS web service.
Rackspace Cloud DNS Status Details
Rackspace Cloud DNS Alternatives
SaaSHub's Down Detector checks the status of services automatically and regularly. However, we cannot promise 100% accuracy. That is why we depend on user reported issues as well. The Rackspace Cloud DNS status here can help you determine if there is a global outage and Rackspace Cloud DNS is down for everyone or it is just you that is experiencing problems. Please always report any issues to help others know the current status.