Fast, ultra-customizeable, pluggable DNS server (forwarding, recursive, or none) with caching, filtering, routing, DNSSEC, admin UI, and plugins. UDP/TCP/DoT/DoH.

An interactive network protocol visualizer that traces the full journey of a web request. Watch DNS resolution propagate from Root to Authoritative servers, visualize TCP/TLS 1.3 handshakes, and generate AI-powered security audits for any domain.

Integrated DNS-based ad and tracker blocking for ISP networks. Implements high-performance sinkholing to filter advertising and malicious domains at the network level, reducing bandwidth consumption and enhancing privacy for all subscribers.

Minimalist DNS resolver built from scratch to learn the DNS protocol.

Production-tested deployment guide for PowerDNS Recursor on DISA STIG-hardened Oracle Linux 8. Covers DNSSEC full validation, systemd hardening drop-in, EPEL install, and air-gapped deployment variant.

A document to describe a mechanism for recursive resolver operators to distribute the IP blocks their servers are using, possibly with locations.