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Web Application Firewalls (WAFs)

A directory of 12 Web Application Firewalls products and vendors. Web application firewalls inspect HTTP traffic to block attacks such as SQL injection and cross-site scripting against web applications and APIs. Links go to each vendor's site.

16 topics•3 categories•Updated October 2026

Cloud & CDN-Native WAFs

6 entries

Cloud & CDN-Native WAFs vendors and products.

01Akamai App & API ProtectorFormerly Web Application Protector, now evolved into a one-stop WAAP solution combining WAF, API security, bot management, and L7 DDoS protection at the Akamai edge. 02AWS WAFManaged cloud web application firewall protecting websites, APIs, and applications from bots, exploits, and Layer 7 events with preconfigured protection packs. 03Google Cloud ArmorNetwork security service providing DDoS and application-attack defenses with adaptive protection and a rich set of WAF rules at Google scale. 04Azure Web Application FirewallCloud-native WAF service that provides powerful, centrally managed protection for web apps deployed on Azure Front Door and Application Gateway. 05Cloudflare WAFEdge-based WAF inspecting HTTP/S requests with managed and custom rules, zero-day protection, and low false positives — without sacrificing performance. 06Fastly Next-Gen WAFModern web app and API security deployable anywhere — on-premises, in containers, in the cloud, or at the edge — using contextual SmartParse detection.

Enterprise Appliance & ADC-Integrated WAFs

6 entries

Enterprise Appliance & ADC-Integrated WAFs vendors and products.

07F5 BIG-IP Advanced WAFUses behavioral analytics, proactive bot defense, and application-layer encryption to identify and block zero-day vulnerabilities and app-layer DoS attacks. 08NetScaler API ProtectionFormerly marketed as Citrix Web App and API Protection; now under the independent NetScaler brand, keeping known and zero-day application attacks at bay with WAF, bot management, and DDoS protection. 09Radware AppWall (Alteon Integrated WAF)Radware's WAF ensures fast, reliable, and secure delivery of mission-critical web applications and APIs, combining positive and negative security models. 10Fortinet FortiWebProtects business-critical web applications from attacks that target known and unknown vulnerabilities, with machine-learning-based threat detection. 11Barracuda Web Application FirewallSecures web apps on-premises and in the cloud — physical, virtual, or cloud-hosted — protecting against application DDoS, SQL injection, and XSS. 12Imperva Web Application FirewallStops application attacks with near-zero false positives, backed by a global SOC that writes and tests rules so customers can deploy confidently in blocking mode.

Related Pages

4 entries

Related directories on this site.

13API Security and Testing SoftwareRelated directory on this site. 14Firewall ProvidersRelated directory on this site. 15Content Delivery Network (CDN) ProvidersRelated directory on this site. 16Application Security Testing ToolsRelated directory on this site.

Frequently Asked Questions

What is Web Application Firewalls (WAFs)?

Web application firewalls inspect HTTP traffic to block attacks such as SQL injection and cross-site scripting against web applications and APIs.

How do I choose Web Application Firewalls (WAFs)?

Compare vendors on rule accuracy, bot and DDoS protection, API support, deployment model and latency.

Which vendors are listed for Web Application Firewalls (WAFs)?

This directory lists 12 products and vendors, including Akamai App & API Protector, AWS WAF, Google Cloud Armor, Azure Web Application Firewall, Cloudflare WAF.

What other directories relate to Web Application Firewalls (WAFs)?

See API Security and Testing Software, Firewall Providers, Content Delivery Network (CDN) Providers.

How current are the listings?

Links were rechecked in October 2026. Vendors rename, merge and retire products often, so confirm details on the vendor's site; renamed products note where their old address now leads.