17:00
2026-05-06
blog.cloudflare.com
cybersecurity
When DNSSEC goes wrong: how we responded to the .de TLD outage
On May 5, 2026, DENIC, the operator of the .de country-code top-level domain, began publishing incorrect DNSSEC signatures, causing validating DNS resolvers like Cloudflare's 1.1.1.1 to reject the rec…