Real-time messaging over measured low-latency paths
Deliver live events to many listeners without queueing everything through one slow path. FastPubSub fans out near listeners across regions.
FastPubSub runs as a managed global service broker for live fan-out. You can use worldwide delivery across the planet, or run in a single region if that is your target scope.
Live dashboards and collaboration channels often publish one event to many subscribers at the same time.
Global audiences see uneven latency when direct paths degrade across ISPs and interconnects.
Routing all delivery through a single slow path adds avoidable delay for fast listeners.
Messages are replicated close to destination listeners to reduce long central delivery chains.
Routing adapts when direct Internet paths are slow or unstable.
Slow subscribers do not block fast subscribers on the same channel.
Live event broadcast for dashboards and feeds.
Shared channels for collaboration and group state.
Cross-region delivery with lower-latency paths.
This workload is about live distribution speed. It does not require durable replay or queue processing semantics for each event.
FastPubSub is delivered as a service, while Kafka, NATS, and RabbitMQ are software stacks you usually operate or manage yourself.
CDNs optimize static objects. FastPubSub targets small live messages and channel fan-out.
Use measured routing and fan-out near listeners for responsive real-time experiences.