Familiar API
A fetch-style handler with Request, Response and URL you already know.
Edge Workers Run JavaScript at every PoP.
Edge Workers let you rewrite, redirect, authenticate and assemble responses right on the CDN edge, close to your users and in front of your origin.
- JS runtime
- Per PoP execution
- Isolated per tenant
worker.jsJavaScript at every PoP
deployed- Routeexample.com/api/*
- Handlerfetch(request)
- IsolationPer-tenant sandbox
- DeployConsole or API
Capabilities
Logic where the traffic is
Sandboxed
Each tenant runs in its own isolated engine with time and memory limits.
Redirects and rewrites
Move old URLs, run A/B splits and normalise paths without touching the origin.
Edge auth
Check tokens or signatures at the edge and reject bad requests early.
Routes
Attach a worker to any hostname and path pattern on your CDN domains.
Logs
Inspect worker output and errors next to your CDN access logs.
Do I need a CDN plan?
Yes. Workers run on CDN domains and are managed from the same console.
Which JavaScript is supported?
Modern ES modules with the standard fetch API. See the docs for the full list of globals.