Major websites like Twitter, Paypal, Spotify, Reddit, and many more were down today. It looks like the cause of this was hackers unleashing a large denial of service (DDoS) attack on the servers of Dyn, a major DNS host. It seems this DNS attach affected the United States and Europe mostly. While many people have reported that the sites are coming back up now, it seems there are more attacks happening.
For those who do not understand how Domain Name Servers (DNS) work, they act as the Internet’s phone book and complete your request to go to a certain website and make sure you are taken to the right place. So if a DNS provider that handles requests for say Reddit is down, well, good luck getting to Reddit. Throughout the day some websites have been coming back, but constant attacks seem to be making it very difficult to browse the web today.
Dyn posted this update on its website: “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.”
Here is a full list of major sites that seem to be affected by the DNS DDoS attack:
Squarespace Customer Sites
Starbucks rewards/gift cards
Wix Customer Sites
Here’s an internet outage map from DownDetector as of 1:39 PM EST:
We will keep you updated!