List of the Top 15 Web Application Firewalls (WAF) in 2025

SKUDONET offers IT executives an affordable solution that emphasizes ease of use and adaptability, ensuring optimal performance and security for IT services. With this innovative platform, you can seamlessly improve the security and reliability of your applications through an open-source ADC, allowing for significant cost savings and unparalleled flexibility within your IT framework. This approach not only streamlines operations but also empowers organizations to respond swiftly to changing technology needs.

The CacheGuard product range revolves around a foundational offering known as CacheGuard-OS. When installed on either a physical or virtual machine, CacheGuard-OS effectively converts that system into a robust network appliance. This newly formed appliance can serve multiple functions as various types of gateways that enhance the security and efficiency of your network. Below is a concise overview of the various CacheGuard appliances available. - Web Gateway: exercise control over organizational web traffic and filter out undesirable web access. - UTM (Unified Threat Management): protect your networks from a wide array of online threats using a combination of a firewall, antivirus at the gateway, VPN server, and a filtering proxy. - WAF (Web Application Firewall): prevent harmful requests from reaching your essential web applications and safeguard your enterprise. The WAF incorporates OWASP rules while allowing for the creation of custom rules, along with an IP reputation filtering system that enables the blocking of IPs identified in real-time blacklists. - WAN Optimizer: optimize the flow of your vital network traffic, conserve bandwidth, and ensure high availability for your internet connection through the use of multiple ISPs. Each appliance is designed to address specific network challenges, ultimately providing comprehensive solutions tailored to your organization’s needs.

Experience unparalleled content delivery with 5centsCDN by selecting from our CDN or CDN+ options, which are designed to meet your specific requirements. For CDN plans, the Standard option begins at just $2.50 per TB, offering access to over 10 Points of Presence for efficient delivery across North America and Europe. The Enterprise plan starts at $15 per TB and provides 50+ Points of Presence for comprehensive global content distribution. On the other hand, our CDN+ plans feature the Standard+ option, beginning at $10 per TB, which includes access to 20+ Points of Presence in North America and Europe, while the Enterprise+ plan starts at $35 per TB, giving you the advantage of 70+ Points of Presence worldwide. Join a community of over 5,000 satisfied clients, which includes prominent players in OTT, IPTV, gaming, and government sectors. 5centsCDN is dedicated to delivering rapid, secure, and cost-effective content solutions, incorporating web acceleration, advanced video-on-demand streaming, and live streaming functionalities to enhance your content delivery experience. Our commitment to excellence ensures that you receive top-quality service tailored to your needs.

FortiWeb WAF safeguards web applications and APIs against the OWASP Top 10 vulnerabilities, zero-day threats, and various application-layer assaults. Additionally, it offers comprehensive functionalities like API discovery and protection, bot mitigation strategies, in-depth threat analytics, and sophisticated reporting tools to enhance security. With these features, it provides a thorough defense mechanism for organizations seeking to secure their digital assets.

AppTrana offers a comprehensive, fully managed web application firewall that features web application scanning to pinpoint vulnerabilities at the application layer, alongside immediate and managed risk-based protection through its WAF, Managed DDoS, and Bot Mitigation services. Additionally, it can enhance website performance with a bundled CDN or work seamlessly with an existing CDN. This robust service is supported by a 24/7 team of security experts who ensure policy updates and tailor custom rules, all while guaranteeing zero false positives. Impressively, AppTrana stands out as the only vendor recognized as Customers’ Choice for WAAP across all seven segments in the Gartner VoC 2022 Report, highlighting its commitment to excellence in web application security. The combination of these features not only enhances security but also optimizes the overall performance of web applications for businesses.

Haltdos guarantees complete high availability for your website and web services through its advanced Web Application Firewall, application DDoS mitigation, Bot Protection, SSL offloading, and Load Balancing solutions, all deployed across both public and private cloud environments. It continuously monitors, identifies, and autonomously addresses a variety of cyber threats, including the OWASP top 10 vulnerabilities and Zero-day attacks, effectively eliminating the need for human involvement in the mitigation process. This proactive approach not only enhances security but also ensures that your online operations remain seamless and uninterrupted.

Our engineering team excels in industries where uninterrupted service is essential. Since the year 2003, we have established a strong reputation for providing highly reliable applications that are not only simple to implement but also easily scalable, earning the trust of solution partners, system integrators, and end-users. By prioritizing the development of enduring relationships with top-tier solution providers in fields such as healthcare, storage, and printing, we are able to gain a comprehensive insight into the technical and business needs of both our partners and their clients. This commitment leads to unmatched levels of operational continuity and customer satisfaction, ensuring that businesses can thrive without interruptions.

Introducing the leading API security platform that understands the context of the industry. Traceable detects all your APIs, assesses their risk levels, prevents API-related attacks that can result in data breaches, and offers analytics for both threat detection and investigative purposes. By utilizing our platform, you can efficiently identify, oversee, and protect every aspect of your APIs, while also enabling rapid deployment and seamless scalability to adapt to your organization's evolving requirements. This comprehensive approach ensures that your API security remains robust in the face of emerging threats.

StormWall stands as a premier force in the realm of cybersecurity, dedicated to shielding websites, networks, and IT infrastructures of diverse sizes from contemporary DDoS challenges. With a proven track record spanning over 12 years, we proudly protect more than 1,000 active clients across 70 nations and have successfully executed upwards of 8,000 projects. Our extensive global filtering network encompasses eight scrubbing centers, boasting a collective capacity that surpasses 5 Tbps, which allows us to effectively mitigate all recognized DDoS attack vectors, ranging from L3 to L7. Furthermore, our Enterprise plan is equipped with an Antibot solution designed to safeguard essential web applications against threats posed by malicious bots. StormWall harnesses state-of-the-art AI-driven threat detection methodologies that utilize sophisticated anomaly analysis to quickly pinpoint and counteract even the most intricate multi-vector assaults. Our cloud-based platform is perpetually advancing, ensuring that businesses are well-prepared to tackle new threats while receiving unparalleled protection. Clients of StormWall benefit from a pay-per-traffic model that ensures they are only billed for legitimate traffic, thus removing extraneous costs associated with attacks. Additionally, our dedicated support team is available around the clock, ensuring that response times are kept to 15 minutes or less for swift resolution of any issues that may arise. This commitment to excellence reinforces our position as a trusted partner in cybersecurity.

Myra, a German technology provider, delivers a robust and certified Security-as-a-Service platform designed to safeguard digital business operations. Our platform effectively shields your digital processes from various threats, including DDoS attacks, bot networks, and database intrusions. Specializing in the protection of essential infrastructures, we focus particularly on sectors such as finance, insurance, healthcare, and public services. Additionally, Myra's technology has received certification from the German Federal Office for Information Security, adhering to ISO 27001 standards built on the principles of Basic IT Protection, thereby ensuring a high level of security and reliability for our clients. This commitment to excellence reinforces our position as a leader in cybersecurity solutions.

Configuring conventional web application firewalls can often require a significant time investment. In contrast, Barracuda WAF as-a-Service offers a cloud-based application security solution that streamlines this process. You can swiftly deploy, set up, and launch it into full operation—all while safeguarding your applications against various threats—in a matter of minutes. This efficiency not only saves time but also enhances your overall security posture.

Reblaze offers a comprehensive, cloud-native security platform specifically designed for websites and web applications. This fully managed solution features versatile deployment options, which include cloud, multi-cloud, hybrid, and data center configurations, and can be set up in just a few minutes. It encompasses cutting-edge capabilities such as Bot Management, API Security, a next-generation Web Application Firewall (WAF), DDoS mitigation, sophisticated rate limiting, session profiling, and additional features. With unparalleled real-time traffic visibility and highly detailed policy controls, users gain complete oversight and management of their web traffic, ensuring enhanced security and operational efficiency.

Open-appsec is an innovative open-source project that leverages machine learning to deliver proactive security measures for web applications and APIs, safeguarding against the OWASP Top 10 vulnerabilities as well as zero-day exploits. This system can be seamlessly integrated as an add-on to Kubernetes Ingress, NGINX, Envoy, and various API Gateways. The core engine of open-appsec observes typical user interactions with your web application, utilizing this behavior data to identify any requests that deviate from established norms, subsequently forwarding these anomalies for further scrutiny to determine their potential maliciousness. To achieve this, open-appsec employs two distinct machine learning models: 1. A supervised model developed offline, drawing insights from millions of both malicious and harmless requests. 2. An unsupervised model that evolves in real time within the protected environment, focusing on the unique traffic patterns of that specific setting. In addition to its robust detection capabilities, open-appsec streamlines maintenance by eliminating the need for frequent threat signature updates and exception management, which are often prerequisites in many conventional WAF solutions. Overall, open-appsec not only enhances security but also reduces the complexity typically associated with managing web application firewalls.

Tencent EdgeOne stands out as a cutting-edge Edge Services Provider that offers remarkable speed and robust security for services across the globe. This platform boasts exceptional flexibility, allowing it to be tailored to suit the requirements of any service, no matter how large or small. Built on Tencent Edge Nodes, Tencent EdgeOne serves as a comprehensive security and enhancement solution designed to safeguard and elevate user experiences across various sectors, including ecommerce, retail, financial services, content creation, news dissemination, and gaming. Furthermore, its adaptability makes it an ideal choice for businesses looking to optimize their online presence in an ever-evolving digital landscape.

AWS WAF functions as a protective web application firewall aimed at defending your web applications or APIs against common web-based threats that could endanger their availability, security, or lead to excessive resource consumption. The service empowers you to control how traffic interacts with your applications by enabling the creation of security rules that can block standard attack vectors, such as SQL injection and cross-site scripting, alongside custom rules to filter out specific traffic patterns that you may identify. To streamline the setup process, AWS provides Managed Rules for AWS WAF, which consist of pre-configured rule sets curated by AWS or third-party vendors available in the AWS Marketplace. These Managed Rules focus on addressing vulnerabilities, including those highlighted in the OWASP Top 10 security risks, and are regularly updated to respond to emerging threats. Furthermore, AWS WAF includes a robust API that allows for the efficient automation of the creation, deployment, and management of security rules. Notably, AWS WAF operates under a pay-as-you-go pricing structure, meaning you incur charges based on the number of rules you set up and the volume of web requests your application handles. This adaptable pricing strategy gives you the ability to customize your security measures in accordance with your application’s unique traffic and complexities, ensuring that you can effectively protect your digital assets. This comprehensive approach to web security makes AWS WAF an essential tool for modern web applications.