Hi,

We run a SaaS platform (Siterius) that builds websites for small businesses: each customer gets their own custom domain. We were hitting the Pro plan's limit of 20 custom domains per service, given our business model (one domain per customer).

We've since worked around this by routing customer domains through a Cloudflare Worker that forwards traffic to our Railway service's own domain (with the original customer domain passed via a custom header, since Railway appears to overwrite standard headers like X-Forwarded-Host with its own value). Railway now only ever sees its own domain, not the individual customer domains.

This works, but we wanted to flag it and ask:

1. Is this Worker-based approach a supported/recommended pattern for multi-tenant platforms like ours, or is there an alternative approach you'd suggest?

2. Is it possible to raise the 20 domains/service limit directly instead, so we don't need to rely on this workaround as we scale? If so, up to how many, and are there any additional costs involved?

Thanks in advance for your help.