Major websites were down cause of DDos attacks on DNS
Tech News, Fri, 21 Oct 2016, 08:16pm GMT
Starting at 11:10 UTC on October 21th-Friday 2016, major websites like Twitter, Reddit, Spotify, Etsy, Box, Wix Customer Sites Squarespace Customer Sites and bunch of other websites were offline, because someone conducted a massive DDoS (distributed denial of service) attack on the Dyn, a world renowned DNS (Domain Name Server) service provider.
In a statement, Dyn acknowledged that their servers are under DDoS attack.
Starting at 11:10 UTC on October 21th-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. This attack is mainly impacting US East and is impacting Managed DNS customer in this region. Our Engineers are continuing to work on mitigating this issue.
List of popular effected websites-