Secure Domain Name System (DNS) Deployment 2026 Guide [pdf]

NIST has published Special Publication 800-81 Revision 3, providing updated guidance for secure deployment of the Domain Name System (DNS) in 2026. The guide covers DNS security extensions (DNSSEC), threat mitigation strategies, and best practices for organizations to protect their DNS infrastructure. It serves as a comprehensive reference for federal agencies and enterprises seeking to harden their DNS configurations against modern attack vectors.