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Connect with Customers. Disconnect from Risks.

Protective DNS

Stop Ransomware, Phishing, bots more.
Let your users browse securely. Get started in under 15 minutes with enterprise PDNS at SMB prices.

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How Protective DNS Works

Proactively stop threats, at the DNS layer, before the malicious content gets into your network. ThreatSTOP is the most comprehensive, advanced and up-to-date real-time DNS Filter available. Blocks malicious DNS resolution requests and IP connection attempts across 600+ categories from billions of data points. Easily integrates with DNS, DDI, Firewalls, Routers and Cloud Native infrastructure.


Protective DNS Security

Protect clients, remote users and servers from phishing, ransomware, malware and more.

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Protect Web and Server Infrastructure

Cut credit card fraud by 50%, stop bots and unwanted traffic from impacting operations.

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Hundreds of qualified data sources that are human & machine curated, delivering the most comprehensive and accurate coverage in the industry of IP addresses and domains.

CheckIOC Overview UI

Fine grained control with 600+ fully customizable policies in 60+ categories. Tailor your own custom block & allowlists.

Policy Management

Automated policy updates for virtually any NGFW, DNS server, Router, Switch, IDP, WAF, SIEM and more.


View & analyze blocked threats. Identify affected client devices. Custom email reports & alerts.


Free Trial

What kind of malware is getting into your network?

See for yourself. Quick, easy setup.

(P.S. we always find something)

Got Questions? Want to see a demo?

Talk to an Engineer

ThreatSTOP has eliminated manual blacklisting and remediation, and reduced help desk tickets related to malware by 90%, to only 1-2 per month.

Mike Connors, Information Security Analyst


Managed Service Providers

Grow your business and margin with the industry's most powerful DNS Filtering Solution.

Designed for multi-tenant use with easy-to-use enterprise features.

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