Hmmm...they’re working for me (in MN).
DDoS Attack Against Dyn Managed DNS
Investigating - As of 15:52 UTC, we have begun monitoring and mitigating a DDoS attack against our Dyn Managed DNS infrastructure. Our Engineers are continuing to work on mitigating this issue.
Oct 21, 16:06 UTC
Monitoring - Services have been restored to normal as of 13:20 UTC.
Oct 21, 13:36 UTC
Update - This attack is mainly impacting US East and is impacting Managed DNS customers in this region. Our Engineers are continuing to work on mitigating this issue.
Oct 21, 12:45 UTC
Investigating - Starting at 11:10 UTC on October 21st-Friday 2016 we began monitoring and mitigating a DDoS attack against our Dyn Managed DNS infrastructure. Some customers may experience increased DNS query latency and delayed zone propagation during this time. Updates will be posted as information becomes available.