We do the proxying straight from our CDN nodes, so it basically works like putting a CDN in front of the app/site you're proxying. This also means you have an

We do the proxying straight from our CDN nodes, so it basically works like putting a CDN in front of the app/site you're proxying. This also means you have an HTTP cache in front of the proxied site, so if you use HTTP caching headers like max-age or Etag we'll respect that and do conditional get requests to the backend or serve cached responses straight out of our CDN.