

Find out in this report how the two Web Application Firewall (WAF) solutions compare in terms of features, pricing, service and support, easy of deployment, and ROI.
Recently, they have been under serious attack with major exploits, such as Log4j, affecting Fortinet and Palo Alto, and even Cisco and VMware.
AI-based recommendations save on time and money.
Operational efficiency has improved; we no longer have staff consistently monitoring backend servers during deployment or scaling events, as HAProxy's health checks and hitless reloads allow us to push changes with minimal manual intervention.
This resulted in a drastic decrease in costs and, at the same time, the accuracy of the hits coming on HAProxy was almost around 100% or 99.99%.
I estimate seeing a return on investment with HAProxy, as it significantly reduced staff requirements and enhanced scaling capabilities, particularly when transitioning from NGINX, which faced issues.
They are good at troubleshooting and configuring things.
I am very satisfied with the response from Microsoft dedicated architects if it happens that I have to call for their support.
I reached out to their support, and they helped me resolve the issue effectively.
Since we are utilizing the open-source edition, community forums, mailing lists, and GitHub have been invaluable, with typically someone having encountered the same problems we faced.
My interactions with HAProxy's customer support were limited, but the feedback from my team indicated satisfactory service.
Some Azure applications, like the web application firewall, require a certain level of SKU for hosting setup.
For our company, Azure Web Application Firewall works effectively for scalability.
We manage an automatic load balancing feature where we add HAProxy servers dynamically behind the application load balancer to handle more traffic.
HAProxy's scalability is excellent; as our traffic expands, it handles load increases effortlessly.
For scalability, HAProxy meets my needs, supporting our initial horizontal scaling and then adapting to vertical scaling in a VMware environment.
Very rarely do I see any latency issues.
This reliability serves as a key reason for our choice, providing us with confidence even when faced with heavy traffic.
The hot reload feature of HAProxy also really helped us so that we never had to shut it down to reload it.
We have reduced a lot of servers, replacing them with one or two HAProxy servers which deliver better performance, accuracy, and an almost 100% success rate with requests.
Upgrading the platform regularly is necessary for security, however, frequent updates every six months or year from Azure can be a maintenance overhead.
The pricing needs improvement, and I think for beginners it will be a little bit complicated, so the ease of use could be enhanced.
The configuration syntax is powerful yet can become overwhelming for newcomers; a more beginner-friendly interface or a native GUI without relying on third-party tools would ease the onboarding process.
An easier desktop interface to connect to a remote server and make changes on my PC would be beneficial.
The reloading functionality is effective as it allows soft reloads without interrupting traffic patterns.
It is even a lower cost compared to AWS and GCP.
Sometimes, when opting for a higher SKU, it's not the WAF itself that's costly but the additional requirements.
I would place Azure Web Application Firewall at an eight on a scale from one to 10, with one being cheap and 10 being expensive.
Since we use the open-source edition, there are no licensing fees, with the main cost being the infrastructure running on EC2 instances in AWS, which helps maintain low expenses.
Setting up HAProxy didn't cost anything for me.
The pricing remains competitive compared to other vendors.
With Microsoft, everything is within a single suite, making it easier to configure and plan.
It is almost impossible to access these assets from outside, requiring a very skilled attacker to obtain asset tokens of a customer using Azure.
It integrates effectively with things such as Sentinel and Defender for Cloud, so mostly it's the analytics and now the AI capabilities that have been introduced with Co-pilot.
By moving all SSL termination to the load balancer, I now manage certificates in a single place, and I can also utilize Let's Encrypt with HAProxy's built-in ACME support, making renewal automatic.
HAProxy positively impacted our organization by exceeding scalability expectations, initially projected at 200k requests but ultimately handling over 15 million transactions per second without any issues.
As a production engineer at that time, I definitely wanted to ensure that the system could handle massive connections, especially since we operated an e-commerce platform where we could not lose any customer calls.
| Product | Mindshare (%) |
|---|---|
| Azure Web Application Firewall | 1.8% |
| HAProxy | 1.9% |
| Other | 96.3% |

| Company Size | Count |
|---|---|
| Small Business | 6 |
| Large Enterprise | 12 |
| Company Size | Count |
|---|---|
| Small Business | 18 |
| Midsize Enterprise | 15 |
| Large Enterprise | 16 |
Azure Web Application Firewall provides strong protection, easy setup, and smooth integration with Microsoft services. It excels in request filtering, custom rule creation, and protection against OWASP Top 10 attacks, ensuring scalable and reliable performance for businesses.
Azure Web Application Firewall offers flexible, affordable, and efficient protection against critical security threats like DDoS and SQL injection, with seamless integration with Azure tools, analytics, and AI capabilities. Users appreciate its ability to handle web requests through role-based access, automation features, and custom policies, especially valuable in cloud environments and ecommerce. Despite the need to improve reporting, management, proxy forwarding, and documentation, it remains a reliable choice for securing front-facing applications.
What are the most important features of Azure Web Application Firewall?Azure Web Application Firewall is widely used in ecommerce for securing transactions against cyber threats like phishing and SQL injection. It also supports reverse proxy setups, provides detailed log analytics, and offers layer 7 protection, making it suitable for businesses needing robust security for both front-facing and branch connectivity applications.
HAProxy delivers reliability, high performance, and efficient load balancing solutions. Its open-source model ensures cost-effectiveness and scalability, ideal for managing extensive infrastructure demands with minimal latency while offering seamless integration with modern platforms.
HAProxy is renowned for its robust performance in load balancing across TCP and HTTP protocols, featuring multiple algorithms such as round-robin. Users appreciate its customizable configuration and seamless SSL termination, which make it an excellent choice for managing complex infrastructures. The platform's open-source nature supports scalability, reducing costs while providing flexible proxy operations. HAProxy efficiently handles high concurrency, enabling smooth traffic management and ensuring stability within diverse systems.
What key features does HAProxy offer?HAProxy is extensively used in load balancing implementations across various sectors. Companies deploy it for managing high traffic, Layer 4 and Layer 7 applications, and SQL databases. It supports microservices architecture, performs SSL offloading, and manages email services like SMTP. As a reverse proxy, HAProxy delivers high availability for systems like Redis, RabbitMQ, and Apache while integrating with Docker and Kubernetes. Its features enhance web application firewall capabilities and traffic routing, making it suitable for industries demanding reliable and efficient network management.
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