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All check types
Network & Protocols

UDP Monitoring

UDP monitoring sends protocol payloads and listens for responses on connectionless ports — covering the services that TCP checks cannot see, from DNS resolvers to game server query ports.

The protocol nobody monitors until DNS or a game port dies

What it checks

  • UDP port responsiveness
  • Round-trip time for request/response protocols
  • Silent packet loss that connectionless protocols hide

Set it up

  1. 1Add a UDP monitor with host and port
  2. 2Configure the expected response where the protocol defines one
  3. 3Wire alerts into your notification contacts

FAQ

Why is UDP monitoring rare?

UDP has no handshake to measure — a closed port looks identical to a dropped packet. Real UDP checks need protocol-aware payloads, which is why most tools skip them entirely.

Related check types

Ping MonitoringRaw reachability with real ICMP — not a TCP shortcutTCP Port MonitoringAny port, any protocol — answer the only question that mattersDNS MonitoringYour site can be up while nobody can resolve it

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