When DNSSEC goes wrong: how we responded to the .de TLD outage (opens in new tab)

--- description: On May 5, 2026, DENIC published broken DNSSEC signatures for the .de TLD, making millions of domains unreachable. Here's what 1.1.1.1 saw, how serve stale cushioned the impact, and how we restored resolution. title: When DNSSEC goes wrong: how we responded to the .de TLD outage image: --- # When DNSSEC goes wrong: how we responded to the .de TLD outage 2026-05-06 * Sebastiaan Neuteboom * Christian Elmerot * Max Worsley 8 min read On May 5, 2026, at roughly 19:30 UT...