A CDN you can write code on.

Your code runs in the layer, not behind it.

A shortwave signal reaches the other side of the world by bouncing off a layer overhead instead of crawling across the ground. A CDN is the same trick. What makes this one different is that the layer is programmable: your worker runs at the point of reflection, before the cache is consulted and before anything is sent back.

export default {
  async fetch(req, ctx) {
    const url = new URL(req.url)

    // Resize and re-encode on the way
    // through, once per variant.
    if (url.pathname.startsWith('/img/')) {
      const hit = await ctx.cache.match(req)
      if (hit) return hit

      const width = Number(url.searchParams.get('w') ?? 1200)
      const source = await ctx.origin.fetch(url.pathname)

      return ctx.cache.put(req, ctx.image(source, {
        width,
        format: req.accepts('image/avif') ? 'avif' : 'webp',
      }), { ttl: '30d' })
    }

    // Everything else: answer from the
    // shelf, refresh behind the visitor.
    return ctx.cache.fetch(req, { staleWhileRevalidate: '1d' })
  },
}

One rate. Every station. Move the dial.

Traffic out of Johannesburg costs exactly what traffic out of Ashburn costs. There is no regional tier, no committed-use contract and no minimum. Set the dial to what your site actually does and read the bill off the panel.

Included every month

100 GB of traffic and 2 million edge invocations, on every account, permanently.

Traffic past the allowance

$0.008 per GB, identical at all 24 stations.

Edge code past the allowance

$0.20 per million invocations. CPU time is not metered separately.

Origin pulls

Not billed. Fetching from your own origin is part of the service, not a line item.

TLS, HTTP/3 and custom domains

Included, including wildcard certificates. Certificates renew without being asked.

Leaving

Export your configuration and workers as files at any time. There is no exit fee.