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HAProxy Technologies

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How to enable post-quantum cryptography and TLS termination with HAProxy

Every time a client connects to your server, a TLS handshake happens before a single byte of application data moves. This comes with security risks. Learn how to combat quantum hackers with HAProxy.

How Liftoff cut costs by 87% and latency by 75% with HAProxy

Liftoff's story goes beyond initial success metrics — a production incident taught them invaluable lessons about observability and monitoring, ultimately reshaping their entire architecture approach.

June 2026 – CVE-2026-55204: null pointer dereference in HAProxy's HPACK header handling

HAProxy advisory for CVE-2026-55204: a null pointer dereference in HPACK header handling. While rated 8.7 (High), the real-world risk is low. Details on impact and remediation are provided.

AWS Summit London & NYC: what engineers want

Across two AWS Summit events in London and New York City, we had the chance to speak with more than 1,000 engineers. Here's what we learned.

How Clover moved beyond blue-green deployments with HAProxy Fusion Control Plane

Clover leveraged the HAProxy One platform to build a traffic routing model they call “rainbow deployments.”

Protecting against HTTP/2 Bomb vulnerability (CVE-2026-49975) with HAProxy

Protect your infrastructure from the HTTP/2 Bomb vulnerability (CVE-2026-49975) using HAProxy. Learn about immediate mitigation strategies and automatic protection.

Announcing HAProxy 3.4

HAProxy 3.4 brings important improvements to flexibility, performance, security, reliability, and more.

Subsecond data center failover at Weller Truck Parts with HAProxy One

Weller Truck Parts established an active-active data center architecture with HAProxy One capable of failing over in under a second.

HAProxy Enterprise WAF protects against Drupal core SA-CORE-2026-004 SQL Injection (CVE-2026-9082)

Protect your infrastructure from Drupal SQL Injection (CVE-2026-9082) using HAProxy Enterprise WAF. Learn about immediate mitigation strategies and automatic WAF protection.

How HAProxy built its modern application delivery architecture

The functions of application delivery, much like any traffic management and routing component, can be grouped into abstract layers called “data plane” and “control plane.”