Dyn, which provides managed domain name service via its Anycast Network, said it has been hit by a distributed denial of service attack that has led to spotty performance by a bevy of popular sites such as Reddit and Twitter.
The DDOS attack notice was posted on Dyn's web site. The incident is affecting Dyn's customers in the US East Coast region. Although the Dyn customer sites are appearing they seem to be slow. We've received a few reports that sites were down too.