Maintaining reliability and scalability for UDP applications is hard.
Applications and infrastructure components often leverage the UDP protocol for DNS lookups, video streaming, online gaming, and transporting log data. However, these uses are sensitive to performance fluctuations and transmission errors. Too much latency or packet loss, and user experiences noticeably suffer.
While UDP load balancers should theoretically help, many offer slow and unreliable packet delivery at high scale.

High-performance UDP load balancing provides robust quality of service at scale
Faster UDP load balancing maintains low latency for a responsive user experience and high packet delivery rates for a robust quality of service compared with other software load balancers. A unified solution provides flexibility to handle UDP applications such as DNS, RADIUS, and Syslog alongside TCP/HTTP traffic.
Reliable, high-performance UDP load balancing
UDP Load Balancing ensures fast, reliable, and cost-effective application delivery.
Flexible TCP/HTTP and UDP load balancing in any environment with a single unified application delivery platform.
Best-in-class UDP packet delivery rates and backend health checks for time-sensitive UDP apps.
Handle 3.8 million Syslog messages per second on a single instance with low latency and low resource use, reducing operational costs at scale.
Leverage high-performance UDP load balancing for DNS, Syslog, RADIUS, and more.
Do more with HAProxy One
The world's fastest application delivery and security platform seamlessly blends data plane, control plane, and edge network to deliver the world's most demanding applications, APls, and Al services in any environment.
HAProxy Enterprise
A flexible data plane layer that provides high-performance load balancing, an API/Al gateway, Kubernetes application routing, best-in-class SSL processing, and multi-layered security.
HAProxy Fusion Control Plane
A scalable control plane that provides full-lifecycle management, monitoring, and automation of multi-cluster, multi-cloud, and multi-team HAProxy Enterprise deployments.
HAProxy Edge
A secure edge network that provides a high-capacity global ADN and threat intelligence — enhanced by machine learning — that powers the next-generation security layers in HAProxy Fusion and HAProxy Enterprise.
World-class experience
24/7 support from real humans! We're the authoritative experts on HAProxy — including the edge, data plane, control plane, and security layers. We'll do whatever it takes to make your HAProxy deployment a success.
What are users saying about HAProxy UDP Load Balancing?
"The new HAProxy Enterprise UDP Module works efficiently and quickly to load balance our RADIUS servers with minimal latency overhead. Additionally, with HAProxy Fusion Control Plane integrating centralized monitoring with Grafana, we have experienced a substantial increase in observability and easier troubleshooting."
“Load balancing and HA is mission critical for some of our services, since we need to feed 24/7 streams to our consumers. HAProxy is perfect for that.”
Seamless integrations with essential tech
