Best Web Application Firewalls (WAF) for Windows of 2025

CacheGuard product line is based on a core product called CacheGuard-OS. Once installed on a bare metal or virtual machine, CacheGuard-OS transforms that machine into a powerful network appliance . The resulted appliance can then be implemented as different types of Gateways to Secure & Optimize your network. See below a brief description of all CacheGuard appliances. - Web Gateway: gain control over the Web traffic in your organization & filter unwanted Web traffic in your organization. - UTM (Unified Threat Management) : secure your networks against all kind of threats coming from the internet with a Firewall, an Antivirus at the Gateway, a VPN server and a Filtering proxy. - WAF (Web Application Firewall): block malicious requests on your critical Web applications and protect your business. The WAF integrates OWASP rules with the possibility to design your own custom rules. In addition, an IP reputation based filtering allows you to block IPs listed in real time blacklists. - WAN Optimizer : prioritize your critical network traffic, save your precious bandwidth and get High Availability for your internet access through multiple ISP.

Fortinet stands out as a prominent global entity in the realm of cybersecurity, recognized for its all-encompassing and cohesive strategy aimed at protecting digital infrastructures, devices, and applications. Established in the year 2000, the company offers an extensive array of products and services, which encompass firewalls, endpoint security, intrusion prevention systems, and secure access solutions. Central to its offerings is the Fortinet Security Fabric, a holistic platform that effectively melds various security tools to provide enhanced visibility, automation, and real-time intelligence regarding threats across the entire network. With a reputation for reliability among businesses, governmental bodies, and service providers across the globe, Fortinet places a strong emphasis on innovation, scalability, and performance, thereby ensuring a resilient defense against the ever-evolving landscape of cyber threats. Moreover, Fortinet’s commitment to facilitating digital transformation and maintaining business continuity further underscores its role as a pivotal player in the cybersecurity industry.

Our engineers are specialists at working in sectors where zero downtime is critical. Since 2003, we’ve been building a reputation for delivering ultra-reliable, easy to deploy and effortlessly scalable applications that are trusted by solution partners, system integrators and end-users alike. Our focus on forming long-lasting partnerships with industry-leading solution providers in healthcare, storage and print, requires an in-depth understanding of both our partners and their clients’ technical and business practices. The result: unprecedented levels of uptime.

We offer the most user-friendly technology without sacrificing performance or features. We back it up with exceptional support and care delivered under a fair, cost-effective pricing model Our technology is used by small startups with big ideas, small budgets, and global enterprises. We love them all! Easy to use Load balancing, WAF, GSLB and SSO/Pre-Authentication. It is also the only true ADP Application Delivery Platform that allows for the enhancement of functionality and longevity using the app store or apps you create in-house.

MyDiamo was developed by Penta Security Systems (APAC leader in encryption technology) and is available to all for noncommercial use. Enterprises and organizations who require additional features can obtain a commercial license. Index searching is possible with column-level encryption or partial encryption - Minimal system performance changes guaranteed - Compatible with open-source DBMS such as MySQL, MariaDB and Percona - GDPR/PCI DSS/HIPAA compliant - Code modification is not required, it works parallel at the engine level

Safeguard your applications against prevalent web threats such as SQL injection and cross-site scripting. Utilize custom rules and groups to monitor your web applications, catering to your specific needs while minimizing false positives. Implement application-level load balancing and routing to create a scalable and highly available web front end on Azure. The autoscaling feature enhances flexibility by automatically adjusting Application Gateway instances according to the traffic load of your web application. Application Gateway seamlessly integrates with a variety of Azure services, ensuring a cohesive experience. Azure Traffic Manager enables redirection across multiple regions, provides automatic failover, and allows for maintenance without downtime. In your back-end pools, you can deploy Azure Virtual Machines, virtual machine scale sets, or take advantage of the Web Apps feature offered by Azure App Service. Centralized monitoring and alerting are provided by Azure Monitor and Azure Security Center, complemented by an application health dashboard for visibility. Additionally, Key Vault facilitates the centralized management and automatic renewal of SSL certificates, enhancing security. This comprehensive approach helps maintain the integrity and performance of your web applications effectively.

WEDOS Protection offers a comprehensive security platform that combines advanced DDoS mitigation, CDN acceleration, and smart traffic filtering to safeguard websites against a wide range of cyber threats. It defends against large-scale volumetric attacks as well as sophisticated application-layer exploits like botnets and L7 attacks. Utilizing a global network of edge servers, the WEDOS Global infrastructure monitors and manages traffic in real time for optimal security and performance. Key features include DNS protection, a Web Application Firewall (WAF), HTTPS proxy, smart caching, and multiple anti-bot filters, all integrated to create a strong, multi-layered defense system. The solution is designed for easy deployment without requiring any changes to website code. It ensures high availability and low latency, even when under attack. WEDOS Protection is suitable for high-traffic websites, e-commerce projects, agencies, IT administrators, and hosting providers. This platform balances strong security with improved website speed and reliability.

WAPPLES SA (software appliances) is a virtual web app firewall (WAF), that can be seamlessly integrated into cloud systems and other virtual environments. It is ideal for enterprises such as hosting providers and data centers, as well as SMBs such managed security service providers or private cloud business infrastructures. WAPPLES SA supports popular hypervisors such as XenServer and KVM.

Create a reliable and scalable gateway for the swift deployment of your applications worldwide. Seamlessly integrate your dispersed microservices into a unified global application through the use of HTTP load balancing and path-based routing configurations. Streamline the process of launching new regions and scaling operations with API-driven global actions, while ensuring independent fault tolerance for your backend microservices, whether they reside in Azure or elsewhere. Deliver and safeguard your global application near your end users with a robust service supported by Microsoft’s esteemed Global Network infrastructure. Consistently optimize your traffic flow to ensure the most efficient route to your application, enhance service capacity, minimize latency, and boost throughput for users around the globe utilizing edge load balancing and application acceleration techniques. Furthermore, effortlessly oversee domain mapping and manage traffic to your microservice backends through a singular, centralized global dashboard, allowing for greater control and visibility over your distributed architecture. This streamlined approach not only improves performance but also enhances the overall user experience across various regions.

Managing application delivery at scale can be challenging, but NetScaler simplifies the process. Whether you are firmly on-premises, fully in the cloud, or operating in a hybrid environment, NetScaler provides consistent functionality across all platforms. Its architecture is built on a single code base, ensuring that regardless of whether you opt for hardware, virtual machines, bare metal, or containers, the performance remains uniform. No matter if your audience consists of hundreds of millions of consumers or hundreds of thousands of employees, NetScaler guarantees reliable and secure application delivery. Renowned as the preferred application delivery and security solution for the largest enterprises globally, NetScaler is trusted by thousands of organizations, including over 90 percent of the Fortune 500, to deliver high-performance application services, robust application and API security, and comprehensive visibility across all operations. This widespread trust underscores NetScaler's vital role in today's digital landscape.

Ivanti delivers a suite of integrated IT management products that help organizations automate workflows, enhance security, and improve employee satisfaction. Their Unified Endpoint Management platform offers centralized, easy-to-use controls to manage devices and ensure consistent policy enforcement across any location. Enterprise Service Management provides deeper visibility into IT processes, helping reduce disruptions and increase efficiency. Ivanti’s network security solutions enable secure access from anywhere, while their exposure management tools help identify and prioritize cybersecurity risks. Serving more than 34,000 global customers like GNC Holdings and Weber, Ivanti is committed to supporting modern, flexible workforces. The company also conducts original research on IT trends, cybersecurity, and digital employee experience to guide innovation. Ivanti’s customer advocacy programs highlight the value of strong partnerships and dedicated support. Their offerings empower businesses to manage technology proactively and securely at scale.