Today, shortly after 5PM EST, a large portion of the internet suffered an outage which also impacted us here at AddThis. Two major internet services, CloudFlare and Dyn, had trouble communicating. Dyn tells the world how to translate domain names, like www.addthis.com, into addresses that computers understand and CloudFlare acts as a delivery network for content on the web. When these two services stopped talking to each other, a large portion of the internet went down with it. Our team, through our automated error detection systems, discovered this issue shortly after it began. Once we determined that the issue was not going to resolve itself quickly we made the decision to cut our traffic over to our secondary CDN provider. This move stabilized our systems and reduced the outage period for us and our customers. At this point everything is 100% back to normal.