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Protocol Settings

Protocol Filter

Enables protocol validation of incoming Minecraft network packets.It inspects handshakes, verifies packet length, and drops malformed or manipulated payload directly at the edge layer before reaching your backend.

Drop all UDP & Bedrock Support

Blocks all incoming UDP traffic. Requires DNS over TCP.Allow Bedrock (UDP 19100–19200): Exemption for Minecraft Bedrock Edition, Geyser cross-play, or RakNet while Drop all UDP is enabled.
Drop all UDP needs DNS over TCP!

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Layer 7 Validation & Bot Protection

Layer 7 Validation

Inspects connections at the application layer to distinguish malicious bots from real players.

Limbo Backend

Routes first time joining players into an internal limbo server to perform passive and active antibot checks.

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Active Checks

Select which specific checks should be performed on the limbo server:

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Legacy Clients (< 1.9)

Defines how older Minecraft client versions are handled, as they do not support all checks. Available actions:
  • Kick: Immediately disconnects legacy clients.
  • Map CAPTCHA: Forces legacy clients to solve a Map CAPTCHA.
  • Website 2FA: Redirects players to a website for verification.
  • CAPTCHA + 2FA: Combines both verification methods.