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The Internet is Hostile: Building a More Resilient Network

Published on by Jérôme Fleury.

In a recent post we discussed how we have been adding resilience to our network. The strength of the Internet is its ability to interconnect all sorts of networks — big data centers, e-commerce websites at small hosting companies, Internet Service Providers (ISP), and Content Delivery Networks (CDN) — just to name

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.

Dyn issues affecting joint customers

Published on by Filippo Valsorda.

Today there is an ongoing, large scale Denial-of-Service attack directed against Dyn DNS. While Cloudflare services are operating normally, if you are using both Cloudflare and Dyn services, your website may be affected. Specifically, if you are using CNAME records which point to a zone hosted on Dyn, our DNS