Best Web Application Firewalls (WAF) - Page 4

How Many Web Application Firewalls (WAF) Products Does G2 Track?

Total Products under this Category: 97

Category Stats (Sep 2026)

  • Average Rating: 4.45/5 The average rating of products in this category, based on all submitted ratings
  • Top Trending Product: F5 NGINX (+0.28%) - Among all products in this category, F5 NGINX recorded the largest rating increase compared to last month

Last updated: September 01, 2026

How Does G2 Rank Web Application Firewalls (WAF) Products?

Why You Can Trust G2's Software Rankings:

  • 30 Analysts and Data Experts
  • 3,400+ Authentic Reviews
  • 97+ Products
  • Unbiased Rankings

G2's software rankings are built on verified user reviews, rigorous moderation, and a consistent research methodology maintained by a team of analysts and data experts. Each product is measured using the same transparent criteria, with no paid placement or vendor influence. While reviews reflect real user experiences, which can be subjective, they offer valuable insight into how software performs in the hands of professionals. Together, these inputs power the G2 Score, a standardized way to compare tools within every category.

G2 Grid® for Web Application Firewalls (WAF)

G2 Grid® for Web Application Firewalls (WAF) plotting products by satisfaction and market presence

Highlighted products: Cloudflare Application Security and Performance, Radware Cloud WAF, Check Point WAF (formerly CloudGuard WAF), HAProxy, Fastly's Web Application and API Security, FortiAppSec Cloud, Fortinet Managed Rules for AWS WAF, and Azion.

Underlying data: [Grid® JSON](https://www.g2.com/categories/web-application-firewall-waf/grids.json?focus%5B%5D=cloudflare-application-security-and-performance&focus%5B%5D=radware-cloud-waf&focus%5B%5D=check-point-waf-formerly-cloudguard-waf&focus%5B%5D=haproxy&focus%5B%5D=fastly-s-web-application-and-api-security&focus%5B%5D=fortiappsec-cloud&focus%5B%5D=fortinet-managed-rules-for-aws-waf&focus%5B%5D=azion)

Gcore Web application and API protection (WAAP)

An end-to-end WAAP solution for protection against L7 DDoS attacks, zero-day vulnerabilities, OWASP top-ten threats, data breaches, and malicious bots. Gcore offers a 99.99% SLA. — Gcore Web application and API protection includes three elements for comprehensive protection: L7 DDoS protection: Keeps your web app working flawlessly even during massive, sustained attacks. — WAF+API Protection: Guards against OWASP top-ten threats, unpatched vulnerabilities, zero-day attacks, and API-specific attacks. Protects confidential information to comply with data protection standards, including GDPR and PCI DSS. — Advanced bot protection: Prevents the harmful effects of malicious bots on your business, such as account hacking, bank card fraud, scalping content theft, advertising fraud, and competitor parsing.

Average Rating: 4.5/5.0

Total Reviews: 1

How Do G2 Users Rate Gcore Web application and API protection (WAAP)?

  • Traffic Controls: 10.0/10 (Category avg: 9.2/10)
  • Security Monitoring: 10.0/10 (Category avg: 9.1/10)
  • Issue Tracking: 10.0/10 (Category avg: 8.7/10)

Who Is the Company Behind Gcore Web application and API protection (WAAP)?

  • Seller: Gcore
  • Year Founded: 2014
  • HQ Location: Luxembourg, Europe
  • Twitter: @gcore_official
    2,922 Twitter followers
  • LinkedIn® Page: www.linkedin.com
    504 employees on LinkedIn®

Who Uses This Product?

  • Company Size: 100% Small

What Do G2 Reviewers Say About Gcore Web application and API protection (WAAP)?

AI-generated summary from verified user reviews

Pros
  • Users appreciate the ease of use and integration of Gcore WAAP, enjoying its intuitive dashboard for managing tasks.
  • Users appreciate the efficiency of Gcore WAAP, benefiting from easy implementation and advanced threat detection capabilities.
  • Users value the easy implementation and comprehensive protection features of Gcore WAAP, enhancing web and API security.
  • Users value the comprehensive protection of Gcore WAAP, appreciating its ease of use and advanced threat detection.
  • Users value the reliable protection provided by Gcore WAAP for both web applications and APIs.
Cons
  • Users often find the cost to be an issue when evaluating the value of Gcore WAAP.

What Are Recent G2 Reviews of Gcore Web application and API protection (WAAP)?

NSFOCUS Web Application Firewall

Defends against the latest attacks, data breaches and helps eliminate downtime. The WAF serves as an essential part of any defense-in-depth security architecture by providing advanced inspection and specialized security for the web application layer. The WAF can operate as a standalone unit or in conjunction with the ADS Series for defense-in-depth security.

Average Rating: 5.0/5.0

Total Reviews: 1

Who Is the Company Behind NSFOCUS Web Application Firewall?

  • Seller: NSFOCUS
  • Year Founded: 2000
  • HQ Location: Santa Clara, US
  • Twitter: @NSFOCUS_Intl
    1,131 Twitter followers
  • LinkedIn® Page: www.linkedin.com
    505 employees on LinkedIn®

What Are Recent G2 Reviews of NSFOCUS Web Application Firewall?

What Are G2 Users Discussing About NSFOCUS Web Application Firewall?

Radware Alteon Application Delivery and Security

Alteon is Radware’s next-generation application delivery controller (ADC) and the only network load balancer that guarantees application SLA. It provides advanced, end-to-end local and global load balancing capabilities for all Web, cloud and mobile-based applications. Alteon load balancer/ADC combines best-of-breed application delivery capabilities, market-leading SSL performance that supports all of the latest encryption protocols, and advanced services to companies with ongoing application lifecycle management challenges that impact the performance of web applications (such as heavier, more complex web content); mobility, and the migration to the cloud. Product video URL: https://youtu.be/9i-7czwpqv8

Average Rating: 4.2/5.0

Total Reviews: 18

How Do G2 Users Rate Radware Alteon Application Delivery and Security?

  • Has the product been a good partner in doing business?: 8.5/10 (Category avg: 8.8/10)
  • Traffic Controls: 10.0/10 (Category avg: 9.2/10)
  • Issue Tracking: 10.0/10 (Category avg: 8.7/10)

Who Is the Company Behind Radware Alteon Application Delivery and Security?

  • Seller: Radware
  • Year Founded: 1997
  • HQ Location: Tel Aviv, Tel Aviv
  • Twitter: @radware
    12,488 Twitter followers
  • LinkedIn® Page: www.linkedin.com
    1,609 employees on LinkedIn®

Who Uses This Product?

  • Company Size: 55% Large, 40% Medium

What Do G2 Reviewers Say About Radware Alteon Application Delivery and Security?

AI-generated summary from verified user reviews

Pros
  • Users appreciate the cloud-augmented security model of Radware Alteon, enhancing security for modern hybrid environments.
  • Users commend the configuration ease of Radware Alteon, streamlining management and scaling across environments effectively.
  • Users appreciate the exceptional customer support from Radware Alteon, enhancing their experience with effective and timely assistance.
  • Users value the customization options in Radware Alteon, enhancing management and scalability for diverse environments.
  • Users appreciate the ease of implementation of Radware Alteon, benefiting from centralized control and REST API support.
Cons
  • Users find the advanced configuration complexity challenging, requiring more intuitive solutions for efficient management.
  • Users find the complex setup challenging, as advanced configurations require specialized knowledge that complicates usability.
  • Users find Radware Alteon Application Delivery and Security to be expensive, noting challenges with cost transparency and flexibility.

What Are Recent G2 Reviews of Radware Alteon Application Delivery and Security?

What Are G2 Users Discussing About Radware Alteon Application Delivery and Security?

Sangfor NGAF Firewall

Sangfor Network Secure (previously known as Sangfor NGAF) is a cutting-edge Next Generation Firewall (NGFW) packed with innovative features. It is the world's first AI-enabled NGFW (Next Generation Firewall) and fully integrated a Web Application Firewall (WAF) to provide both network- and application-level protection. It leverages artificial intelligence, machine learning, and real-time threat intelligence to deliver a superior malware detection rate of 99.76%.

Average Rating: 4.0/5.0

Total Reviews: 2

How Do G2 Users Rate Sangfor NGAF Firewall?

  • Has the product been a good partner in doing business?: 8.3/10 (Category avg: 8.8/10)
  • Traffic Controls: 10.0/10 (Category avg: 9.2/10)
  • Security Monitoring: 6.7/10 (Category avg: 9.1/10)
  • Issue Tracking: 6.7/10 (Category avg: 8.7/10)

Who Is the Company Behind Sangfor NGAF Firewall?

  • Seller: Sangfor Technologies
  • Year Founded: 2000
  • HQ Location: Shenzhen, China
  • Twitter: @SANGFOR
    13,224 Twitter followers
  • LinkedIn® Page: www.linkedin.com
    2,344 employees on LinkedIn®

Who Uses This Product?

  • Company Size: 50% Medium, 50% Small

What Are Recent G2 Reviews of Sangfor NGAF Firewall?

Sense Defence Next-Gen AI WAF

Sense Defence Next-Gen AI WAF is a web application firewall (WAF) that uses artificial intelligence (AI) and next-generation technologies to provide advanced security for web applications. We aim to provide a more effective and efficient means of protection by detecting and blocking malicious traffic and adapting to new and changing threats using our proprietary AI engine.

Average Rating: 4.0/5.0

Total Reviews: 1

How Do G2 Users Rate Sense Defence Next-Gen AI WAF?

  • Has the product been a good partner in doing business?: 8.3/10 (Category avg: 8.8/10)

Who Is the Company Behind Sense Defence Next-Gen AI WAF?

  • Seller: Sense Defence
  • Year Founded: 2022
  • HQ Location: London, GB
  • Twitter: @sensedefenceltd
    2 Twitter followers
  • LinkedIn® Page: www.linkedin.com
    2 employees on LinkedIn®

Who Uses This Product?

  • Company Size: 100% Small

What Are Recent G2 Reviews of Sense Defence Next-Gen AI WAF?

ShieldsGuard

ShieldsGuard is an all-in-one cybersecurity platform offering DDoS protection, Web Application Firewall (WAF), Secure Email Gateway (SEG), and AI-driven threat analytics in a single, unified system. Designed for high-availability environments, ShieldsGuard defends organizations at the application, network, and communication layers. The platform integrates real-time IP reputation, behavioral filtering, and customizable protection rules—making it ideal for fintech, government, SaaS, and hosting providers.

Average Rating: 5.0/5.0

Total Reviews: 1

How Do G2 Users Rate ShieldsGuard?

  • Traffic Controls: 10.0/10 (Category avg: 9.2/10)
  • Security Monitoring: 10.0/10 (Category avg: 9.1/10)
  • Issue Tracking: 10.0/10 (Category avg: 8.7/10)

Who Is the Company Behind ShieldsGuard?

Who Uses This Product?

  • Company Size: 100% Medium

What Do G2 Reviewers Say About ShieldsGuard?

AI-generated summary from verified user reviews

Pros
  • Users appreciate the top-notch customer support of ShieldsGuard, emphasizing fast and knowledgeable responses for all inquiries.
  • Users appreciate the intuitive dashboard of ShieldsGuard, which streamlines powerful features for efficient protection and management.
  • Users value the efficient DDoS protection of ShieldsGuard, appreciating its intuitive interface and quick setup time.
  • Users value the real-time monitoring of ShieldsGuard, enhancing security and simplifying traffic analysis with ease.
  • Users value the effortless setup of ShieldsGuard, with protection achieved in just minutes through an intuitive interface.

What Are Recent G2 Reviews of ShieldsGuard?

Verizon WAF

Verizon WAF is a Cloud-based Web Application Firewall and is a key component of Verizon’s DEFEND suite of web security solutions. Verizon WAF is based on the world’s most deployed web application firewall engine, ModSecurity, and is designed to provide a high degree of protection against cybercrime, hacktivism, and cyber espionage.

Average Rating: 4.5/5.0

Total Reviews: 1

How Do G2 Users Rate Verizon WAF?

  • Traffic Controls: 10.0/10 (Category avg: 9.2/10)
  • Security Monitoring: 10.0/10 (Category avg: 9.1/10)
  • Issue Tracking: 10.0/10 (Category avg: 8.7/10)

Who Is the Company Behind Verizon WAF?

  • Seller: Verizon
  • Year Founded: 1983
  • HQ Location: Basking RIdge, NJ
  • Twitter: @Verizon
    1,486,564 Twitter followers
  • LinkedIn® Page: www.linkedin.com
    101,991 employees on LinkedIn®
  • Ownership: NYSE:VZ

Who Uses This Product?

  • Company Size: 100% Medium

What Do G2 Reviewers Say About Verizon WAF?

AI-generated summary from verified user reviews

Pros
  • Users value the exceptional customer support from Verizon WAF, ensuring their needs are met effectively and efficiently.
  • Users commend the easy integration of Verizon WAF, making it essential for seamless customer service.

What Are Recent G2 Reviews of Verizon WAF?

Airlock Suite by Ergon Informatik

Airlock Suite is Ergon's all-round IT security product.

Who Is the Company Behind Airlock Suite by Ergon Informatik?

  • Seller: Ergon
  • HQ Location: Zurich, Switzerland
  • Twitter: @ErgonAirlock
    638 Twitter followers
  • LinkedIn® Page: www.linkedin.com
    1 employees on LinkedIn®

AI Web Application Firewall

The AI-Powered Web Application Firewall (WAF) by GOSDT (Shaeryl Data Tech) is an "Agentic AI" security solution designed to protect web applications, APIs, and cloud-native platforms using autonomous multi-agent systems and Large Language Models (LLMs) like GPT-4o, Gemini, and Claude. Unlike traditional rule-based firewalls, this system is self-operating, meaning it identifies and blocks threats in real-time without requiring manual rule updates. Key Components & Features: The firewall utilizes three specialized autonomous AI agents: Malware Detection Agent: Analyzes traffic payloads and code to detect SQL injections, XSS, and zero-day exploits using machine learning and behavioral analysis. Firewall Agent: Monitors network traffic and filters requests based on behavior, geofencing (Country/ASN/IP), and spoofing detection. Image Analysis Agent: Uses Vision AI to inspect uploaded files for NSFW content, phishing UIs, deepfakes, and steganography. Major Advantages: LLM-Powered Decision Making: Uses advanced AI models to provide deep packet analysis and explainable threat summaries. Zero-Touch Protection: Adapts dynamically to new attack vectors through a self-learning engine. Developer Friendly: Features one-line frontend integration (e.g., React modules) and is compatible with Docker and Kubernetes environments. Real-Time Visualization: Includes a live dashboard for monitoring attack heatmaps, visual logs, and threat analysis.

Who Is the Company Behind AI Web Application Firewall?

Botguard

BotGuard is an advanced AI-powered platform that actively detects and blocks modern web threats, like malicious bots, crawlers, scrapers and hacker attacks trying to access your infrastructure or website. Whether you're a hosting company or a website owner, BotGuard can meet your specific security needs. Using cutting-edge artificial intelligence algorithms, BotGuard can identify and differentiate between human users and malicious bots. By analyzing user behavior patterns, it effectively detects and blocks suspicious activities in real time, minimizing the risk of data breaches, fraud, and account takeovers. Our flexible and scalable architecture allows for easy implementation, with seamless integration and minimal impact on user experience and system performance. A dedicated team of cybersecurity experts committed to your online safety, providing timely assistance, proactive guidance, and regular updates to ensure that you're always protected against emerging threats is always on call. In an era where online threats are increasingly sophisticated, BotGuard offers a powerful shield that preserves the integrity of your digital presence. It helps you identify and fight malicious bots, safeguard your personal information, and maintain a secure environment for your online activities.

Who Is the Company Behind Botguard?

  • Seller: Botguard
  • Year Founded: 2019
  • HQ Location: Tallinn, EE
  • LinkedIn® Page: www.linkedin.com
    74 employees on LinkedIn®

CADE (Context Aware Defence Enforcer)

Axiler CADE (Context-Aware Defence Enforcer) is an AI-powered, self-healing application security platform that protects web applications, APIs, and cloud workloads in real time, without slowing development teams. CADE continuously analyzes traffic behavior, user context, and code-level insights to detect and prevent sophisticated threats while minimizing false positives. The platform automates remediation workflows, integrates seamlessly with CI/CD pipelines and SIEM tools, and provides unified dashboards for monitoring and reporting. Organizations can reduce risk, improve security visibility, and maintain operational efficiency, all while safeguarding critical applications and cloud environments. Key features include: AI-driven Web Application Firewall (WAF) and API protection Self-healing vulnerability detection and remediation Bot, DDoS, and attack mitigation Runtime threat monitoring and anomaly detection Centralized dashboards and actionable reporting CI/CD and cloud integrations for seamless security

Who Is the Company Behind CADE (Context Aware Defence Enforcer)?

  • Seller: Axiler
  • Year Founded: 2023
  • HQ Location: Singapore, SG
  • LinkedIn® Page: www.linkedin.com
    17 employees on LinkedIn®

Cloudbric Managed Rules for AWS WAF - Anonymous IP Protection Rule Set

Cloudbric Managed Rules for AWS WAF - Anonymous IP Protection was created to protect the websites and web applications against the threats from Anonymous IPs originating from various sources such as VPNs, Data Centers, DNS Proxies, Tor Networks, Relays, P2P Networks, etc. Anonymous IP Protection utilizes the Anonymous IP List, managed and updated by Cloudbric Labs, to detect and respond to Anonymous IPs that can easily be exploited for malicious purposes and prevent threats such as geo-location based fraud, DDoS or license and copyright infringement caused by hackers. Cloudbric Managed Rules for AWS WAF is created based on the security technologies and expertise of WAPPLES which has protected the web services for enterprises since 2005 and has recently been validated by a third-party testing firm to have a top-tier detection rate. Cloudbric Managed Rules for AWS WAF utilizes Penta Security's own Cyber Threat intelligence (CTI), Cloudbric Labs, to provide a safer online environment.

Who Is the Company Behind Cloudbric Managed Rules for AWS WAF - Anonymous IP Protection Rule Set?

Conviso

The Conviso Platform is a complete Application Security Posture Management (ASPM) solution that centralizes visibility, correlation, and prioritization of vulnerabilities across the software development lifecycle. It integrates with your existing SAST, DAST, SCA, IaC, and CI/CD tools, automates triage, and provides a unified view of risk — helping security and development teams work together to reduce complexity and strengthen AppSec maturity.

Who Is the Company Behind Conviso?

Lauren Worth
LW
Researched and written by Lauren Worth
Updated January 22, 2025