Posts by John Graham-Cumming

How the Dyn outage affected Cloudflare

Published on by John Graham-Cumming.

Last Friday the popular DNS service Dyn suffered three waves of DDoS attacks that affected users first on the East Coast of the US, and later users worldwide. Popular websites, some of which are also Cloudflare customers, were inaccessible. Although Cloudflare was not attacked, joint Dyn/Cloudflare customers were affected.

Fixing the mixed content problem with Automatic HTTPS Rewrites

Published on by John Graham-Cumming.

CloudFlare aims to put an end to the unencrypted Internet. But the web has a chicken and egg problem moving to HTTPS. Long ago it was difficult, expensive, and slow to set up an HTTPS capable web site. Then along came services like CloudFlare’s Universal SSL that made switching

Welcoming Sir Tim Berners-Lee to the CloudFlare Internet Summit

Published on by John Graham-Cumming.

This Thursday, September 15, we are holding our second Internet Summit at our offices in San Francisco. We have a fascinating lineup of speakers covering policy, technology, privacy, and business. We are very pleased to announce that Sir Tim Berners-Lee will be our special guest in a fireside chat session.

Evenly Distributed Future

Published on by John Graham-Cumming.

Traveling back and forth between the UK and US I often find myself answering the question “What does CloudFlare do?”. That question gets posed by USCIS on arrival and I’ve honed a short and accurate answer: “CloudFlare protects web sites from hackers, makes web sites faster and ensures they

The Cuban CDN

Published on by John Graham-Cumming.

On a recent trip to Cuba I brought with me a smartphone and hoped to get Internet access either via WiFi or 3G. I managed that (at a price) but also saw for myself how Cubans get access to an alternate Internet delivered by sneakernet. Cuba is currently poorly served