UPDATE: The issue appears to be resolved. Accordingly, we have removed the NTAs. We will continue to monitor and update if anything changes.

We are monitoring a DNSSEC-related issue with DE ccTLD. The issue is not specific to Quad9.

UPDATE: As a result of the issue, we have decided to temporarily implement Negative Trust Anchors. You can view our NTA policy here: https://quad9.net/service/negative-trust-anchors/

We will continue to update as more information becomes available.