Secure your DNS infrastructure

Securing your DNS infrastructure is critical to protecting online services from growing DDoS and cyber threats. Modern attacks leverage massive IoT and server-based botnets to overwhelm DNS servers, exploiting UDP floods and DNS amplification techniques. Traditional hardware-based mitigation cannot scale against these distributed attacks, making a software-driven, globally distributed network essential. Cloudflare’s architecture provides resilient DNS resolution, high capacity, and low latency, ensuring uptime even during large-scale attacks.

Key strategies include:

• Mitigating DDoS attacks with distributed network architecture
• Protecting DNS resolvers and authoritative DNS servers
• Using DNS firewalls to prevent amplification attacks
• Ensuring resiliency through Anycast routing and global coverage
• Implementing scalable software-based mitigation over legacy hardware

These approaches help organizations maintain service availability, minimize disruption, and stay resilient against evolving DNS threats.