Is it possible to bypass Railgun?

We intend to try Railgun. What are your opinions on its impact on performance?

Can it be bypassed if it fails or in case of a downtime in the Cloudflare network?

Thanks!

Railgun fails open - that is, if the listener (running on your server(s)) fails, Cloudflare’s edge will bypass it and connect directly.

… or in case of a downtime in the Cloudflare network?

I mean, you’re reliant on Cloudflare if they’re proxying your connections here - you could disable the proxy (“grey cloud”) for a given DNS record, but that naturally disables all functionality (caching, Page Rules, etc) and exposes your origin IP address.

I would also take a look at Argo, which achieves much of what Railgun does (in terms of performance). Unless egress pricing at your origin provider is a big deal, Railgun has only incremental benefits over Argo.

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