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Can’t access your favorite website today? You’re not alone

twitter-down-or-not-working-current-status-and-down-detectorInternet users around the world, but mostly in the US, reported that some top websites were not loading on Friday morning.

The affected sites include Amazon, Twitter, Netflix, Etsy, Github, and Spotify.

The issue is currently ongoing.

It was mostly resolved at 9:20 a.m. ET, but at 12:07 p.m. ET, the issue started to crop up again, according to one of the companies at the center of the apparent cyber attack.

The issue appears to have something to do with DNS hosts — in particular, Dyn, one of the biggest DNS companies.

Domain Name Servers are a core part of the internet’s backbone. They translate what you type into your browser —http://www.businessinsider.com, for example — into IP addresses that computers can understand.

Dyn said on Friday that it suffering a DDoS attack, or a distributed denial of service. That basically means hackers are overwhelming Dyn’s servers with useless data and repeated load requests, preventing useful data — the Twitter IP address, for example — from getting through.

No group has taken credit for the DDoS attack yet. The Department of Homeland Security is monitoring the attack, Politico’s Eric Geller reports.

The second round of attacks seems to effect the West Coast of the US and Europe as well.

Here’s how it unfolded, according to Dyn, the company being attacked.

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Update: Domain host company Dyn warns of another cyber attack after websites and services were shut down earlier Friday – CNBC

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Update: Dyn DNS Company says ‘services have been restored to normal’ as of 9:20 am ET following DDoS attack

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Update: Domain name servers host Dyn suffering distributed denial-of-service attack, causing outages to several websites – Business Insider

 

 

 

Related:

Understanding Denial-of-Service Attacks | US-CERT

Twitter down or not working? Current status and … – Down Detector

Massive Dyn DNS outage | Hacker News

Dynstatus : Website stats and valuation

NBC News

Commitment 2016: Nebraska, Iowa results | KETV – Live Wire

Internet traffic firm Dyn warns of new attack, earlier assault impacted …

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