User Datagram Protocol - faster but less reliable method of sending data over networks. Like regular mail - faster to send but no guarantee it arrives or in what order.
Online games use UDP for real-time communication where speed is more important than perfect delivery.
UDP (User Datagram Protocol) is an Internet transport protocol, not a cloud provider service. All major clouds support UDP traffic across their networking stack (VPC/VNet/VCN, load balancers, firewalls, and compute instances) when you configure the relevant listeners, security rules, and ports.
Explore real-world architectures from our community that use UDP: