Major .de Outage: DNSSEC Failure at DENIC Takes Down German Domains
On May 5, 2026, a major.de outage disrupted access to websites across Germany and Europe. The incident, caused by a failure at DENIC, the operator of the.de top-level domain, resulted in widespread DNS resolution failures. This was not a typical service outage. It was a failure at the DNS layer that made entire domains unreachable. As DNS caches expired, more services went offline, creating the appearance of a spreading outage across unrelated companies.