Clients blocked by persistent actions now receive a 403 Forbidden response

Sage AbrahamSoftware Engineer

Starting today, when the Vercel Web Application Firewall (WAF) blocks a client with a persistent action, it will respond with a 403 Forbidden status instead of failing silently. This change now makes it clear that the connection is being intentionally denied. 

Persistent actions in the WAF help reduce edge request load and stop malicious traffic earlier, cutting down unnecessary processing for your applications.

Learn more about persistent actions.