Route 53 Resolver DNS Firewall from AWS filters the DNS queries made from your VPCs. With it you block queries to malicious domains and allow queries to trusted domains, or enforce a strict allowlist. You can use AWS-managed lists of known DNS threats. The advanced variant also blocks DNS tunnelling and DGA-based attacks. Logs of blocked and alerted queries can be sent to Amazon S3, Kinesis or CloudWatch to audit outbound DNS traffic.
Route 53 Resolver DNS Firewall is a service of Amazon Web Services, part of Amazon.com, Inc. (headquartered in Seattle, Washington), and is therefore subject to US jurisdiction, even in a European region. According to AWS, customers control the region where their customer data is stored. AWS acts as a processor under the GDPR and offers a data processing addendum with Standard Contractual Clauses. Because the parent is a US company, legislation such as the CLOUD Act remains relevant. Choosing a European region helps, but it does not remove the dependency on a US provider.