This document describes the overall architecture of the Web Application Firewall (WAF) system, explaining its core components and how they interact to provide security functionality.

Web application firewalls (WAF) are a type of reverse proxy technology that operate at Layer 7 of the open systems interconnection (OSI) stack. They are generally implemented to protect web applications and web services from malicious traffic or users.

A web application firewall operates as a reverse proxy, standing between client requests and a web application server. It filters incoming traffic to the web application by intercepting and analyzing HTTP requests before they reach the server.

May 20, 2025 · Abstract Web Application Firewalls (WAFs) are critical for protecting web services from application-layer attacks (e.g. SQL injection, XSS). However, conventional WAF designs exhibit serious limitations: rule-based filters require constant updates and tend to generate false positives/negatives, while many WAFs cannot adapt quickly to new threats. In response, we propose a novel, multi-layered ...

Web Application Firewall (WAF) provides centralized protection of your web applications from common exploits and vulnerabilities. You can deploy WAF on Azure Application Gateway or WAF on Azure Front Door Service. What is Web Application Firewall?

In many organizations, internet-facing applications are "walled off" in a perimeter zone that's separated from an on-premises environment.

As a Layer 7 defense, WAFs focus on traffic between web applications and the internet. Their ability to detect and respond to malicious requests before web applications and web servers accept the requests provides businesses (and their customers) with essential security.

Aug 28, 2022 · Attacks against web applications emerge in endlessly, and protecting the security of web applications is an important part of the current cyberspace security.

Jun 20, 2023 · In this article, I explain what a WAF does, the different kinds of WAF, and I discuss why you should deploy one or more WAFs in your architecture. What is a Web Application Firewall (WAF)?...

FortiWeb Web Application Firewall (WAF) architecture is designed to provide advanced, real-time protection for web applications against modern threats.