List of the Top 25 Web Application Firewalls (WAF) for Small Business in 2025

The leading edge cloud platform available today empowers developers, fosters customer connections, and facilitates business growth. Our innovative solution is crafted to enhance both your existing technology and your teams' capabilities. By moving data and applications closer to users at the network's edge, our platform significantly boosts the performance of your websites and applications. Fastly's highly customizable CDN enables you to tailor content delivery right where it's needed most. Users will appreciate having immediate access to the information they seek. Our robust Points of Presence (POPs), equipped with solid-state drives (SSDs), are strategically positioned in well-connected areas across the globe. This setup allows for extended caching periods, minimizing the need to retrieve data from the original source. Instant Purge and batch purging through surrogate keys enable rapid caching and invalidation of dynamic content, ensuring that you can always deliver up-to-date news, inventory levels, and weather updates. With such capabilities, your platform is not only efficient but also adaptable to ever-evolving user demands.

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.

A10 Defend Threat Control is a cloud-based service integrated into the A10 software suite. It features an up-to-the-minute DDoS attack map along with a comprehensive inventory of DDoS threats. Unlike many existing tools that prioritize ease of use but often generate false positives or negatives, A10 Defend Threat Control offers in-depth insights into both attackers and their targets. This includes analytics on various vectors, emerging trends, and other critical data points. By delivering actionable intelligence, it empowers organizations to enhance their security measures and effectively block harmful IP addresses that could initiate DDoS attacks. Ultimately, this tool stands out in its ability to combine thorough analysis with practical defense strategies for businesses facing evolving cyber threats.

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.

Cloudflare serves as the backbone of your infrastructure, applications, teams, and software ecosystem. It offers protection and guarantees the security and reliability of your external-facing assets, including websites, APIs, applications, and various web services. Additionally, Cloudflare secures your internal resources, encompassing applications within firewalls, teams, and devices, thereby ensuring comprehensive protection. This platform also facilitates the development of applications that can scale globally. The reliability, security, and performance of your websites, APIs, and other channels are crucial for engaging effectively with customers and suppliers in an increasingly digital world. As such, Cloudflare for Infrastructure presents an all-encompassing solution for anything connected to the Internet. Your internal teams can confidently depend on applications and devices behind the firewall to enhance their workflows. As remote work continues to surge, the pressure on many organizations' VPNs and hardware solutions is becoming more pronounced, necessitating robust and reliable solutions to manage these demands.

Our hardware solutions equipped with ML-Enhanced NGFW technology empower users to proactively address unidentified threats, achieve comprehensive visibility across all devices, including IoT, and reduce errors with automated policy recommendations. The VM-Series functions as the virtual equivalent of our ML-Enhanced NGFW, protecting your applications in both private and public cloud environments through efficient segmentation and robust threat prevention strategies. Concurrently, the CN-Series, specifically crafted for containerized settings, guarantees that complex network threats cannot spread across Kubernetes namespace boundaries, significantly bolstering security measures. Collectively, these advanced solutions offer a thorough defense framework tailored to meet the unique needs of various infrastructures, ensuring that organizations can adapt to evolving security challenges effectively. This multifaceted approach not only enhances protection but also simplifies management for IT teams.

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 dedicated team of researchers vigilantly monitors ongoing malware threats to provide the best possible solutions. Supported by a talented group of analysts, we aim to offer premier malware removal services. By employing advanced tools and scripts, we perform real-time scans to detect any malware lurking on your website. Our security experts thoroughly examine the source code to pinpoint any irregularities. No cyber-attack is too complex for our incident response team, who are adept at uncovering and resolving such issues. We are always prepared to provide immediate assistance for urgent situations. Choose a plan that aligns with your specific needs. Connect with us to learn about our one-time priority cleanup service, tailored for those dealing with critical malware issues. Our proficiency in eliminating sophisticated malware infections is unmatched. We guarantee a fixed price, irrespective of how often or how complicated the problem may be. Each of our website security packages secures your site for a full year, covering unlimited cleanups, pages, and databases. Whether your site utilizes a CMS or not, Sucuri’s services are perfectly suited for your needs. We effectively tackle any malware infection on websites and specialize in safeguarding open-source content management systems, ensuring comprehensive security for all our clients. With us, you can have peace of mind knowing that the security of your website is our utmost priority, and we remain committed to keeping it safe from emerging threats.

Safeguard your websites against potential plugin vulnerabilities with WebARX, which offers more than just a standard security plugin. This efficient web application firewall effectively prevents harmful traffic from reaching your site. With the WebARX firewall engine, you have the flexibility to establish personalized firewall rules tailored to your needs. Additionally, you can keep a close eye on your websites for any security vulnerabilities or concerns that may arise. WebARX is regularly updated, ensuring that you stay aligned with the latest security practices. Moreover, you can receive weekly reports on your security status and get immediate notifications for any critical issues that require your attention. This proactive approach helps maintain your website's integrity and safety in a constantly evolving digital landscape.

The Advanced Web Application Firewall (WAF) provides essential protection for your applications by leveraging behavioral analytics, proactive bot defense, and encryption to secure sensitive data at the application layer. To gain insight into how the Advanced WAF can enhance your security posture while also lowering costs, consider using the ROI Estimator offered by F5 and Forrester. The F5 BIG-IP Advanced WAF features a comprehensive suite of security tools specifically designed to protect your web applications from an array of potential threats. Unlike many WAFs that offer only basic protection within the upper layers of the OSI model, the F5 Advanced WAF incorporates sophisticated security functionalities, including the Anti Bot Mobile SDK, Credential Stuffing threat feeds, Proactive Bot Defense, and Datasafe, among other features. It's critical to safeguard your applications, APIs, and data against prevalent threats like zero-day exploits, application-layer DoS attacks, coordinated threat campaigns, application takeovers, and malicious bots, which are essential components of a robust security strategy. By investing in these advanced protective measures, organizations can significantly enhance their security framework and ensure their digital assets are better shielded against the ever-evolving landscape of cyber threats. The integration of such advanced technologies not only fortifies defenses but also instills greater confidence in handling sensitive information.

Boost the protection of web applications against a wide range of attacks and vulnerabilities by implementing strong security protocols and a uniform policy framework through our SaaS-based Web Application Firewall (WAF), which is crafted for quick setup and seamless scalability in any setting. Enhance the security of applications by embedding protective mechanisms directly into the development process, bolstered by vital security features, centralized oversight, and thorough monitoring. The F5 Distributed Cloud WAF addresses the complexities of securing applications across diverse cloud platforms, on-premises systems, and edge locations. By offering the necessary programmability for DevOps along with the supervision required by SecOps, it accelerates the safe delivery of applications and simplifies release processes. Furthermore, users can deepen their comprehension of security incidents, such as WAF signature triggers, denial-of-service attacks, persistent automated threats, and all client interactions, while also obtaining insights into application performance, complete with detailed drill-down capabilities. This comprehensive strategy guarantees that security becomes an essential component of the entire development process, rather than a mere afterthought, enabling teams to build more resilient applications. Security, therefore, is woven into the fabric of development, ensuring that risks are managed proactively and effectively.

Optimize application delivery by leveraging software-defined load balancers, web application firewalls, and container ingress services that can be seamlessly implemented across numerous applications in diverse data centers and cloud infrastructures. Improve management effectiveness with a unified policy framework and consistent operations that span on-premises environments as well as hybrid and public cloud services, including platforms like VMware Cloud (such as VMC on AWS, OCVS, AVS, and GCVE), AWS, Azure, Google Cloud, and Oracle Cloud. Enable infrastructure teams to focus on strategic initiatives by reducing their burden of manual tasks while empowering DevOps teams with self-service functionalities. The application delivery automation toolkits offer an array of resources, such as Python SDK, RESTful APIs, along with integrations for popular automation tools like Ansible and Terraform. Furthermore, gain deep insights into network performance, user satisfaction, and security through real-time application performance monitoring, closed-loop analytics, and sophisticated machine learning strategies that continuously improve system efficiency. This comprehensive methodology not only boosts performance but also cultivates a culture of agility, innovation, and responsiveness throughout the organization. By embracing these advanced tools and practices, organizations can better adapt to the rapidly evolving digital landscape.

Secure both on-premises and multi-cloud environments with a comprehensive firewall solution specifically designed for cloud security. The seamless, cloud-based Advanced Threat Protection system efficiently detects and mitigates sophisticated threats, including zero-day exploits and ransomware incidents. With access to an extensive global threat intelligence network, informed by millions of data points, organizations can quickly respond to new and evolving threats. As modern cyber risks, such as ransomware and advanced persistent threats, continue to escalate, the need for sophisticated defensive strategies that ensure accurate threat detection and rapid response becomes paramount. The Barracuda CloudGen Firewall offers a robust array of next-generation firewall technologies, providing immediate defense against a diverse range of network risks, vulnerabilities, and attacks including SQL injections, cross-site scripting, denial of service assaults, and various types of malware. This powerful solution not only bolsters security but also facilitates adherence to industry regulations, thereby becoming an indispensable asset for any organization dedicated to protecting its digital resources. Moreover, with the increasing complexity of cyber threats, the importance of integrating advanced security measures cannot be overstated.

Fortinet emerges as a key global player in the cybersecurity sector, notable for its comprehensive and integrated approach to safeguarding digital infrastructures, devices, and applications. Founded in 2000, the organization provides a wide range of products and services, including firewalls, endpoint protection, intrusion prevention systems, and secure access solutions. A cornerstone of its offerings is the Fortinet Security Fabric, a unified platform that seamlessly combines various security tools to enhance visibility, automation, and provide real-time threat intelligence across the entire network. Renowned for its dependability among businesses, government agencies, and service providers worldwide, Fortinet prioritizes innovation, scalability, and performance, thereby reinforcing its defenses against the constantly shifting landscape of cyber threats. In addition to its protective capabilities, Fortinet’s dedication to enabling digital transformation and ensuring business continuity highlights its essential role within the cybersecurity landscape, positioning itself as a trusted partner for organizations striving to navigate modern security challenges effectively. With a focus on proactive measures and cutting-edge solutions, Fortinet continues to adapt and evolve to meet the demands of an increasingly complex digital world.

Explore our diverse deployment options, outstanding customer support, and premium service-level agreements (SLAs). In today's digital landscape, it is crucial for your online operations to remain functional 24/7 throughout the year to effectively serve your customers, partners, and employees. Our responsive, behavior-driven algorithms are designed to combat emerging threats while achieving the lowest false positive rates in the industry. They proficiently distinguish between genuine and malicious traffic, thereby enhancing SLAs and improving service uptime. With robust protection mechanisms in place, we are able to eliminate abnormal traffic patterns that can exhaust network resources and impede application accessibility. Whether you seek on-demand, always-on, or hybrid solutions, we equip organizations with comprehensive defenses against contemporary DDoS attacks. Our range of services includes Web Application Firewall (WAF), threat intelligence, advanced analytics, SSL traffic inspection, cloud signaling, and hybrid DDoS protection options. The Cisco Firepower 4100 Series and 9300 appliances are fortified with powerful DDoS mitigation capabilities, such as Virtual DefensePro (vDP), ensuring that your organization is shielded from evolving threats effectively. By opting for our services, you can concentrate on your primary business objectives, knowing that your network security requirements are in expert hands. Furthermore, our solutions are designed to adapt to the growing challenges in cybersecurity, keeping your operations secure and efficient.

The leading hybrid and multi-cloud platform provides an exceptional array of security features, including next-generation WAF, API Security, RASP, Enhanced Rate Limiting, Bot Defense, and DDoS protection, specifically designed to overcome the shortcomings of traditional WAF systems. Conventional WAF solutions were inadequate for the challenges posed by modern web applications that function across cloud, on-premise, or hybrid environments. Our state-of-the-art web application firewall (NGWAF) and runtime application self-protection (RASP) solutions not only bolster security measures but also ensure reliability and optimal performance, all while offering the most competitive total cost of ownership (TCO) in the industry. This forward-thinking strategy not only satisfies the requirements of the current digital environment but also equips organizations to tackle future web application security challenges effectively. By continuously evolving our solutions, we aim to provide businesses with the tools necessary to navigate an ever-changing security landscape.

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.

Our technology is designed to be incredibly user-friendly while still maintaining high performance and a full range of features. We complement this with outstanding support and a commitment to fair, affordable pricing. Our solutions cater to everyone, from ambitious small startups with limited resources to large global corporations, and we appreciate each one of them! With straightforward options like Load balancing, WAF, GSLB, and SSO/Pre-Authentication, you can easily integrate our offerings. Moreover, we proudly present the only genuine ADP Application Delivery Platform that enables you to enhance both functionality and longevity through our app store or applications developed internally. This versatility ensures that all users can tailor the technology to meet their specific needs effectively.

Our cloud-based SWAP has been recognized as one of the premier defenses against threats such as cross-site scripting (XSS), SQL injection, and Distributed Denial of Service attacks. Utilizing a logic-driven approach, Cloudbric's SWAP incorporates pattern recognition, semantic analysis, heuristic evaluation, and foundational rulesets, all of which are automated and user-friendly. This level of automation eliminates the frequent need to modify security policies or update signatures. Additionally, private Web Application Firewall (WAF) deployments offer a range of customization options to meet specific needs. Our service guarantees the security of your website, ensuring it remains operational and shielded from DDoS attacks. Cloudbric takes proactive measures to thwart DDoS attacks at layers 3, 4, and 7, capable of managing threats that can surge to an impressive 20Tbps. Moreover, our solution not only offers robust protection but also enhances the overall resilience of your online presence.

MyDiamo, created by Penta Security Systems, a leading provider of encryption solutions in the Asia-Pacific region, is accessible for noncommercial purposes to everyone. For businesses and organizations that need enhanced capabilities, a commercial license can be acquired. Users can perform index searching even with column-level or partial encryption without compromising system performance. Additionally, it is designed to work seamlessly with open-source database management systems like MySQL, MariaDB, and Percona, ensuring compliance with regulations such as GDPR, PCI DSS, and HIPAA. One of its key advantages is that no code alteration is necessary, as it operates in parallel at the engine level, making it a user-friendly option for data security. Furthermore, its deployment allows organizations to maintain data integrity while implementing strong encryption measures.

The Modshield SB Web Application Firewall (WAF), which integrates Modsecurity and the OWASP Core Ruleset, is meticulously crafted to meet all your application security needs. It provides an extensive array of security functionalities that guarantee thorough protection for both your applications and hosting environments. Leveraging the OWASP Core Ruleset, Modshield SB offers outstanding defenses against the top ten OWASP threat vectors, including automated defenses and protections against credential stuffing assaults. By opting for the Modshield SB Web Application Firewall, you can confidently secure the confidentiality, integrity, and availability of your business applications for your users. Setting up a strong first line of defense for your applications has never been more straightforward or efficient. The integration of the OWASP Core Ruleset ensures that your applications are automatically protected from the most pressing OWASP threats. Additionally, the built-in load balancing features of Modshield SB eliminate the need for a separate Load Balancer, simplifying your infrastructure while simultaneously boosting security. This combination of features not only enhances your security posture but also optimizes the performance of your applications.