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'Domino effect': Why the world's biggest websites suddenly went offline

Failure at Fastly, which helps websites load their pages faster, sent vast swaths of the web offline on Tuesday.

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Fastly, which went public in 2019 and has a market capitalization of under $6 billion, is far smaller than peers like Amazon's AWS

Nate Lanxon and Jackie Davalos | Bloomberg
The hour-long Fastly Inc. outage was a reminder of how exposed the world’s biggest websites are to the impact of disruptions ranging from simple human error to coordinated cyberattack.

The failure at Fastly, which helps websites load their pages faster, sent vast swaths of the web offline on Tuesday. News websites including CNN, the New York Times and Bloomberg News, services such as Amazon.com Inc., Shopify Inc. and Stripe Inc., plus sites as large as Spotify and Reddit all went offline. U.K. government digital services were also unavailable for a period.

Major sites began reporting problems around 10:30 a.m. U.K.