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When DNSSEC goes wrong: how we responded to the .de TLD outage

Cloudflare Blog·21d·Reputable

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.

Categories cybersecurity · privacy · cybercrime
Original source / advisory
Published
5/6/2026, 5:00:00 PM
Fetched
5/27/2026, 4:13:56 AM
Trust
reputable · 80/100
Language
en