DNSFilter: AI-Powered Content & Threat Filtering

In modern hybrid offices, laptops leave the corporate LAN daily. DNSFilter’s Roaming Client keeps threat and content policies active off-network and streams encrypted DNS data to the nearest Anycast server.

Administrators gain unified visibility over office and home traffic, without requiring VPN tunneling. Automated policy assignment by Active Directory group ensures contractors and employees receive the correct access levels wherever they log in.

Learn more about Roaming Clients →

Cafés, hotels, and retail chains rely on public Wi-Fi to keep customers connected, but inappropriate or risky sites accessed over the network can damage the brand. DNSFilter installs at the gateway or upstream router, blocking adult content, hate speech, and malware before they appear on guest devices—no client software needed.

Location-based analytics show which stores see the most blocked threats, guiding local signage or bandwidth controls or upgrades. Provided as a cloud service means multi-site rollouts finish in a day, not weeks. Multi-tenancy makes central management a breeze.

Learn more about protecting your guest Wi-Fi →

Smart cameras, HVAC controllers, and factory sensors often cannot install antivirus or agents yet still reach the internet. DNSFilter’s agentless deployment protects these devices by resolving queries through policy-enforced resolvers.

Administrators block regions, TLDs, or entire content categories to eliminate unnecessary outbound traffic and spot compromised devices when they attempt to beacon out. Devices can be segmented and assigned a specific Relay to resolve DNS queries providing detailed query logs that integrate with SIEM tooling so SecOps can spot problem devices quickly, keeping production lines and building systems safe.

Schools must balance open internet access for learning with strict content controls under the Children’s Internet Protection Act (CIPA). DNSFilter deploys directly on classroom networks and student Chromebooks, categorizing millions of domains in real time.

Administrators apply age-appropriate policies, enforce SafeSearch, and deliver audit-ready reports on demand. DNS-layer filtering conserves bandwidth for lessons, while the Roaming Client protects take-home devices without a VPN. Budget-friendly education licensing keeps total cost of ownership low so IT staff can safeguard students and faculty without complex hardware.

Learn more about protecting school devices →

DNSFilter shields users from phishing pages and malware download sites by combining a constantly validated set of known-bad domains with real-time AI discovery.

Policies block recognized threats immediately and optional new-domain rules reject any hostname registered in the last 7 or 30 days—shutting down analysis that flags algorithm-generated names and convincing brand look-alikes, often identifying dangers 10 or more days before public feeds. Because the block occurs before any network session starts, malicious servers never receive a single packet.

When an alert hits the SOC, analysts need the full story, not just a list of blocked sites. DNSFilter logs every DNS lookup—benign, suspicious, or malicious—so investigators can reconstruct a device’s entire internet timeline in seconds. Raw DNS query data can be exported to Splunk, QRadar, or any SIEM, where SOAR playbooks add context from EDR, firewall, and email gateways.

The complete picture means fewer pivots, faster root-cause analysis, and quicker containment, all without wading through millions of endpoint telemetry events.

Ransomware gangs rely on command-and-control (C2) servers for stolen keys and data-leak channels. DNSFilter severs that link in three complementary ways.

First, every lookup is scored by our machine-learning engine, which flags algorithm-generated and brand-spoofing domains seconds after they appear—even when no threat feed has a record.

Second, policy controls can deny entire geographic domains frequently exploited by ransomware crews, cutting off large blocks of infrastructure with one setting.

Finally, the “New Domain” policy rules stop just-registered hostnames before they ever resolve. The combined effect blocks the C2 handshake, buys your team time to isolate affected systems, and prevents exfiltration or extortion demands.