NEW CortexDNS v2.4 released with enhanced threat filtering and audit logging See what's new
Enterprise-grade DNS Security Platform

DNS Security That
Actually Works

CortexDNS combines authoritative DNS management, intelligent threat filtering, and real-time analytics into a single platform. Stop threats at the DNS layer before they reach your network.

High Performance Built for scale
On-Prem Ready Your infrastructure
Open Source Core Transparent & auditable
cortexdns.local/dashboard
Total Queries
1,247,832
+12.4%
Blocked
48,291
3.87%
Clients
342
+8
The Challenge

DNS is your network's Achilles heel

Over 90% of malware uses DNS for command and control. Traditional firewalls can't see it. Your security stack has a massive blind spot, and attackers know it.

91%
of malware uses DNS to communicate
$4.2M
average cost of a data breach
287 days
average time to identify a breach
Your Network
💻Phishing
🐛Malware C2
📤Data Exfil
DNS Tunnel
💀Ransomware
Capabilities

Everything you need for DNS security

From authoritative DNS management to threat blocking, CortexDNS provides complete visibility and control over your DNS infrastructure.

Threat Filtering Engine

Network-wide ad blocking and threat filtering. Manage blocklists, allowlists, and client groups through a unified dashboard.

  • Custom blocklist and allowlist management
  • Client and group-based filtering
  • Query log with search and export
  • Real-time blocking statistics

Analytics & Reporting

Deep visibility into DNS traffic patterns. Identify anomalies, track trends, and generate compliance reports.

  • Real-time query analytics dashboard
  • Top clients, domains, and query types
  • Trend analysis and anomaly detection
  • Scheduled reports and alerts

Audit Logging

Complete audit trail for compliance and forensics. Track every configuration change with user attribution and timestamps.

  • Comprehensive change logging
  • User action attribution
  • Retention policies and archival
  • SIEM integration support

Multi-tenancy

Isolate environments for different teams, departments, or customers. Role-based access control with granular permissions.

  • Tenant isolation and segregation
  • Custom RBAC policies
  • Delegated administration
  • Per-tenant quotas and limits

REST API

Automate everything with our comprehensive API. Integrate with your existing tools and workflows.

  • Full OpenAPI 3.0 specification
  • Swagger documentation
  • Webhook support for events
  • SDK libraries for popular languages
How It Works

Deploy in minutes, protect for years

01

Deploy the platform

Install CortexDNS on-premises or use our cloud offering. Docker, Kubernetes, or bare metal supported.

terminal
$ docker compose up -d
Creating cortexdns-server  ... done
Creating cortexdns-ui      ... done
Creating cortexdns-filter  ... done
Creating cortexdns-authority ... done

✓ CortexDNS ready at https://localhost
02

Connect your infrastructure

Point your clients to CortexDNS. Connect to your existing DNS infrastructure or deploy our managed solution.

Clients
CortexDNS
Authority
Filter
03

Configure policies

Set up blocklists, create zones, define client groups, and configure alerts based on your security requirements.

🚫 malware-domains.txt 124,847 domains
🚫 phishing-hosts.txt 89,234 domains
corporate-allowlist.txt 1,247 domains
04

Monitor and respond

Watch your DNS traffic in real-time. Investigate incidents, tune policies, and generate reports.

14:32:15 BLOCKED malware-c2.evil.com 10.0.1.45
14:32:14 OK api.github.com 10.0.1.23
14:32:14 OK login.microsoft.com 10.0.1.87
Solutions

Built for your industry

Organizations across industries rely on CortexDNS to secure their DNS infrastructure.

🏢

Enterprise IT

Protect corporate networks from phishing, malware, and data exfiltration. Enforce acceptable use policies and gain visibility into shadow IT.

Learn more
🏥

Healthcare

Meet HIPAA compliance requirements with comprehensive audit logging. Protect patient data and medical devices from DNS-based threats.

Learn more
🏛

Financial Services

Defend against financial malware and fraudulent domains. Satisfy regulatory requirements with immutable audit trails.

Learn more
🏫

Education

Content filtering for K-12 and higher education. Protect students while maintaining compliance with CIPA and other regulations.

Learn more
🏭

Manufacturing

Secure OT/IT convergence with DNS-layer protection. Prevent lateral movement and protect industrial control systems.

Learn more
🌐

MSP/MSSP

Multi-tenant architecture designed for service providers. Manage hundreds of customers from a single pane of glass.

Learn more
Pricing

Simple, transparent pricing

No hidden fees. No query limits. Pay for the features you need.

Monthly Annual Save 20%

Community

For small teams and home labs

$0 forever
  • Up to 10 clients
  • Threat filtering
  • Basic DNS management
  • 7-day query log retention
  • Community support
Get Started

Enterprise

For large organizations

Custom pricing
  • Everything in Professional
  • Multi-tenancy
  • SAML/LDAP SSO
  • Custom retention policies
  • SIEM integration
  • Dedicated support
  • SLA guarantee
  • On-premises deployment
Contact Sales

Ready to secure your DNS?

Get in touch with our team to learn how CortexDNS can protect your network.

On-premises deployment available. Enterprise support included.