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TLD glue sticks around too long

Published on by Marek Majkowski.

Recent headline grabbing DDoS attacks provoked heated debates in the DNS community. Everyone has strong opinions on how to harden DNS to avoid downtime in the future. Is it better to use a single DNS provider or multiple? What DNS TTL values are best? Does DNSSEC make you more or

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.

Say Cheese: a snapshot of the massive DDoS attacks coming from IoT cameras

Published on by Marek Majkowski.

Over the last few weeks we've seen DDoS attacks hitting our systems that show that attackers have switched to new, large methods of bringing down web applications. They appear to come from an IoT botnet (like Mirai and relations) which were responsible for the large attacks against Brian Krebs. Our

Announcing New Features To Help Hosting Providers Run Their Own Reliable DNS Infrastructure

Published on by Dani Grant.

Over the last six years, we’ve built the tooling, infrastructure and expertise to run a DNS network that handles our scale - we’ve answered a few million DNS queries in the few seconds since you started reading this. DNS is the backbone of the internet. Every email, website