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HAProxy is free, open-source software that provides a high-availability load balancer and proxy server for TCP and HTTP-based applications that spreads requests across multiple servers.


It is written in C and has a reputation for being extremely fast and efficient also in terms of processor and memory usage.


HAProxy is used by a number of high-profile websites including GitHub, Bitbucket, Stack Overflow, Reddit,, Tumblr, Twitter, and Tuenti, and is used in the OpsWorks product from the largest cloud providers.

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HAProxy load balancer and proxy server installed and ready to use on Ubuntu Server 22.04 LTS

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Additional traffic is only $0.01 per GB
Additional storage is only $0.05 per GB per month
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$12,00 /hour

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Frequently Asked Questions

What are the system requirements for deploying HAProxy?

A low-level workload can be achieved either by a Virtual Machine or a bare metal server. You need at least:
1 CPU core
1 G of RAM

The disk size will depend on your operating system and the volume of logs you want to keep. For more details, refer to the installation requirements.

What are the common use cases for HAProxy?

HAProxy, which stands for High Availability Proxy, is a powerful and flexible load balancer and proxy server that is widely used across various industries. Here are some common use cases for HAProxy:

Load balancing, web application delivery, high availability and failover, SSL termination, API gateway, TCP and UDP load balancing, reverse proxy, content switching, Global Server Load Balancing (GSLB), rate limiting, WebSocket load balancing, and logging and monitoring.

What are popular alternatives to HAProxy?

Several popular alternatives to HAProxy exist, each offering load balancing and proxying solutions with unique features and capabilities. Here are some alternatives:

Apache Traffic Server
AWS Elastic Load Balancing (ELB)
Microsoft Azure Load Balancer
Citrix ADC (formerly NetScaler)

How does HAProxy differ from other load balancers?

While different load balancers share some core functionalities, HAProxy differentiates itself in several key aspects:

Focus on simplicity and efficiency:

Lightweight and fast: HAProxy uses minimal resources and offers exceptional performance, making it ideal for high-traffic scenarios.

Easy configuration: Its configuration file is text-based and human-readable, allowing for quick setup and customization.

Focus on core features: HAProxy excels at load balancing HTTP and TCP traffic, prioritizing core functionalities over extensive bells and whistles.

Flexibility and versatility:

Multiple load balancing algorithms: HAProxy offers various algorithms, including round robin, least connections, and weighted connections, to optimize traffic distribution based on your needs.

Health checks and failover: HAProxy monitors server health and automatically redirects traffic to healthy servers in case of failures, ensuring high availability.

Support for different protocols: It handles not only HTTP and TCP but also other protocols like UDP and SMTP, making it applicable to diverse deployments.

Additional features:

SSL termination and offloading: HAProxy can handle SSL encryption and decryption, reducing server workload and improving performance.

Content switching and routing: It enables advanced routing based on URL patterns, headers, or cookies, offering greater control over traffic flow.

Statistics and monitoring: HAProxy provides detailed statistics on traffic flows, server health, and resource usage for enhanced analysis and troubleshooting.

Why should I choose Kamatera for HAProxy hosting?

Here’s why Kamatera stands out as the most compelling option for HAProxy hosting:

Cutting-edge hardware: Kamatera leverages Intel Xeon Platinum processors and NVMe SSD storage, guaranteeing exceptional performance for your solution.

Global network reach: With 21 data centers strategically located across four continents, Kamatera provides low-latency access to your server, regardless of your users’ geographical locations. This minimizes lag and ensures consistent performance for geographically distributed teams.

Elastic infrastructure: Kamatera’s infrastructure seamlessly scales to accommodate your growing needs. You can easily add or remove resources on-demand, without downtime or performance bottlenecks. 

Industry-leading security measures: Kamatera prioritizes security by implementing data encryption, access control mechanisms, vulnerability scanning, and compliance with industry standards like PCI DSS and SOC 2.

24/7 Support: Kamatera’s dedicated support team is available 24/7 to assist you with any questions or issues you may encounter with your HAProxy hosting.