13 open-source CDN, DNS & Domains vendors.

Open-source software for CDN, DNS & Domains that you can self-host, with auditable source code — regardless of the developer's headquarters.

• Apache Traffic ServerSelf-hosted / open source

  Fast, scalable open-source caching proxy server used by large global networks as a CDN building block. A project of the Apache Software Foundation (US).

  United States

• BIND9Non-EU vendor

  The most traditional and versatile open-source DNS suite in the world (authoritative and/or recursive in one binary), essential for complex enterprise zone transfers. Maintained by ISC (Internet Systems Consortium, US).

  United States

• CoreDNSSelf-hosted / open source

  Flexible, Go-based open-source DNS server that is the standard for service discovery within cloud-native Kubernetes environments. A CNCF (Cloud Native Computing Foundation) project.

  United States

• deSECEU sovereign

  Free DNS hosting with DNSSEC support run by a German non-profit

  Germany

• DNSControlNon-EU vendor

  Open-source system for managing DNS zones as code (DNS-as-Code) via Git pipelines, compatible with 74+ providers. Developed by Stack Exchange, Inc. (New York, US).

  United States

• Envoy ProxySelf-hosted / open source

  Open-source edge and service proxy designed for large-scale cloud-native service meshes, with full control over data routing. Originally built at Lyft, now a CNCF project.

  United States

• Knot DNSSelf-hosted / open source

  Advanced, open-source authoritative nameserver developed by Czech registry CZ.NIC, optimised for extreme traffic peaks and DNSSEC automation.

  Czechia

• Knot ResolverSelf-hosted / open source

  Modular, C- and Lua-based open-source recursive DNS resolver from Czech registry CZ.NIC, with a strong focus on DNS-over-TLS (DoT). A separate product from the authoritative Knot DNS nameserver.

  Czechia

• NginxNon-EU vendor

  Classic open-source webserver and reverse proxy, excellent for locally caching static content and SSL offloading. Originally Russian (Igor Sysoev), owned by US-based F5, Inc. since 2019.

  United States

• NSDSelf-hosted / open source

  Purely-authoritative, open-source nameserver by Dutch foundation NLnet Labs, designed for extreme reliability and speed. Used by various global root servers and TLDs.

  Netherlands

• PowerDNSSelf-hosted / open source

  Open-source DNS server software with authoritative and recursive capabilities

  Netherlands

• Traefik ProxyEU sovereign

  Modern open-source edge router and HTTP reverse proxy, designed to expose dynamic microservice architectures. Developed by Traefik Labs SAS (Lyon, France).

  France

• Varnish CacheEU sovereign

  The de facto open-source standard for HTTP acceleration and web caching, the foundation for building your own enterprise CDN. Developed by Varnish Software AB (Stockholm, Sweden).

  Sweden