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The Guardian - UK
The Guardian - UK
Technology
Robert Booth UK technology editor

What is Cloudflare – and why did its outage take down so many websites?

A Cloudflare logo on a smartphone screen in front of a bigger screen reading 'Internal server error'
Users of several heavy-traffic websites reported that they went offline at the same time as the Cloudflare outage. Photograph: Global Images Ukraine/Getty Images

The internet infrastructure provider Cloudflare suffered an outage on Tuesday, making many websites inaccessible for about three hours.

What is Cloudflare?

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