Warden is a managed signaling service for Minecraft Bedrock servers using NetherNet, a WebRTC-based networking technology. Independently developed and operated by Ziax, the creators of CubeCraft, it is the default signaling service for Geyser’s NetherNet integration. Warden handles the connection setup: servers register their connection details and availability, then Warden selects an eligible destination when a player joins. Gameplay travels directly between the player and server; Warden does not relay game traffic or conceal the server’s IP address.

For individual servers, Warden offers a public signaling endpoint, managed hostnames and SSL/TLS certificates, NAT traversal guidance, and connectivity tests with diagnostics. For server networks, it supports regional pools and routing policies based on factors such as location, health, and capacity. Operators can inspect destination selections and connection failures, while draining servers are excluded from new joins without disrupting existing sessions. Warden implements the open, vendor-neutral NetherNet External Signaling specification, allowing operators to choose compatible providers.