9.9.9.9
Ransomware, phishing, and malware all start with a DNS lookup. Quad9 checks every lookup in real time — blocking known threats before they reach your network, your staff, or your customers. One DNS change. No hardware. No contract. No hardware, no software, no licensing fees. A single DNS configuration change deploys Quad9 across your entire organization — protecting every device on the network, including endpoints that can’t run their own security software. No personal user data is collected or stored. Quad9 operates under strict Swiss data protection law and is designed to be GDPR-compliant from deployment — no configuration required. Nothing to breach. Nothing to audit. Stops threats before they reach you. Quad9 checks every DNS lookup in real time against threat data from 35+ threat intelligence partners — blocking malicious sites before your device ever connects. Low-latency, high-redundancy infrastructure across 260+ locations in 115+ countries, positioned at Internet Exchange Points for minimal latency. Queries are anycast-routed to the nearest operational system — automatically. DNS-layer security stops a significant portion of cyberattacks before they reach your network — at the moment a device attempts to connect to a malicious destination. The Global Cyber Alliance found that approximately 33% of cybersecurity breaches could be stopped by a DNS-based system like Quad9. Deploying it costs nothing and takes minutes. A single configuration change on your DNS settings protects every device across your organization — including remote workers, IoT devices, and infrastructure that can’t support endpoint security software. Other security tools require a threat to make contact first. Quad9 stops it before that happens. Quad9 has several service configurations for recursive DNS — each with its own IP address. Choose the one that fits your setup, including options for standard security, DNSSEC validation, and encrypted DNS (DoH, DoT, DNSCrypt). Quad9 operates 260+ resolver locations in 115+ countries, positioned at Internet Exchange Points. Use the locations map to understand coverage across your global footprint and assess latency for specific regions. IT administrators can search any domain to verify whether Quad9 is blocking it. Use this to investigate block events, audit threat coverage, or confirm a domain is accessible before escalating to your team. Step-by-step configuration instructions for common network devices, operating systems, and enterprise environments. Deploy on your router to cover the full network, or configure individual devices for remote and hybrid workforces. Quad9 publishes a full Transparency Report covering how the service operates, how threat blocking decisions are made, and how requests from governments and law enforcement are handled. Essential for compliance, governance, and procurement reviews. Technical support for organizations deploying Quad9 at scale. Contact the Quad9 team with configuration questions, integration requirements, or operational issues.
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