DNS Shield

FraudGuard DNS Shield transforms your DNS layer into a real-time security decision point. Powered by the FraudGuard Attack Correlation Engine (ACE), DNS Shield evaluates destination infrastructure during resolution and helps stop risky outbound connections before they are ever established. This is a practical, high-performance way to reduce egress risk, cut downstream security noise, and turn routine DNS traffic into a meaningful security control.

ACE-Powered DNS Enforcement

DNS Shield integrates directly with FraudGuard ACE to evaluate high-risk infrastructure during DNS resolution. Instead of relying on static blocklists alone, teams can enforce policies using dynamic risk intelligence backed by real-world attack data, historical correlations, and honeypot-derived threat signals.

Purpose-Built for Egress Protection

Most security stacks focus heavily on ingress traffic. DNS Shield addresses the often-overlooked outbound side of the equation by preventing compromised workloads, malware, bots, and abusive automation from resolving and reaching risky destinations.

Deterministic Sinkholing & Redirects

When risky infrastructure is identified, DNS Shield can return custom controlled responses such as sinkhole IPs, null-style results, or policy-driven redirects. This supports consistent enforcement, preserves observability, and gives teams more control than generic resolver failures.

Threat-Aware Telemetry

Every DNS decision can become a source of high-signal telemetry. DNS Shield supports audit logging, threat-aware resolution outcomes, and downstream enrichment workflows that help security teams understand what workloads attempted to reach and why it mattered.

Built on Proven Resolver Technology

DNS Shield leverages battle-tested recursive DNS technology such as Unbound to provide high-performance, low-latency resolution with modern best practices including policy enforcement, caching, and flexible deployment topologies.

Redis-Backed Intelligence Support

For customers that need fast local decisioning and dynamic policy updates, DNS Shield can be paired with Redis-backed datasets and other optimized data delivery models to support high-throughput lookups and fast refresh cycles.

Flexible Deployment Models

We can deploy DNS Shield inside FraudGuard-managed infrastructure, within the customer’s own cloud, or in hybrid environments. FraudGuard can also provide build scripts, setup details, and implementation guidance for teams that want to manage the deployment internally.

Anycast-Ready Architecture

For customers that need globally distributed DNS performance, DNS Shield can be designed with Anycast-friendly deployment models and scalable routing patterns in mind. This supports low-latency resolution, resilient policy enforcement, and best-in-class global reach.

How DNS Shield Works

DNS Shield is designed to fit modern cloud, enterprise, and hybrid environments. Whether deployed by FraudGuard or inside your own infrastructure, the workflow is straightforward, fast, and built around real operational needs.

1. Choose a Deployment Model

Deploy DNS Shield in FraudGuard-managed infrastructure, inside your own cloud or data center, or as a hybrid implementation. We support flexible operating models depending on your compliance, control, and performance requirements.

2. Connect DNS Resolution to FraudGuard Intelligence

DNS Shield uses recursive DNS infrastructure and policy enforcement logic to inspect resolved destinations against FraudGuard ACE intelligence. This allows suspicious or high-risk infrastructure to be identified at resolution time.

3. Apply Risk-Based DNS Policy

When a destination matches customer-defined or FraudGuard-recommended thresholds, DNS Shield can allow, redirect, sinkhole, or otherwise control the response. This creates a deterministic and policy-driven layer of outbound protection.

4. Capture Audit & Security Telemetry

Every policy decision can be logged for investigation, analytics, and downstream enrichment. This gives teams visibility into suspicious lookups, blocked infrastructure, and the broader egress patterns inside their environment.

5. Support Customer Workflows

Outputs can be integrated with SIEM platforms, internal analytics pipelines, incident response workflows, and other security tooling. FraudGuard can also provide implementation artifacts and operational guidance for customer-managed deployments.

6. Continuously Improve Enforcement

As FraudGuard ACE intelligence continuously updates, DNS Shield policies can automatically stay in sync with the latest threat data, helping customers react faster to changing attack infrastructure without the operational burden of constantly rebuilding or manually maintaining DNS security rules.