---
title: 'Next-Gen WAF: Added WAF simulate endpoint'
summary: null
url: >-
  https://www.fastly.com/documentation/reference/changes/2026/04/add-ngwaf-simulate-endpoint
---

We've added the [Simulate a WAF request](https://www.fastly.com/documentation/reference/api/ngwaf/simulate) endpoint to the Next-Gen WAF. This endpoint lets you simulate HTTP requests through a workspace's WAF configuration and view the WAF response code and any signals that would be detected, without sending actual traffic. Use it to test and validate WAF rule behavior before deploying changes to production.