Custom Domains

Every web service gets a free subdomain at service-name.railpush.com. You can also add custom domains with automatic TLS provisioning.

Setup

1. Add your domain in the service's Networking tab
2. Point your DNS CNAME record to your service's .railpush.com subdomain
3. TLS certificate is provisioned automatically via Let's Encrypt

Domain Redirects

You can configure a domain to 301-redirect all traffic to another domain. This is commonly used to redirect an apex domain to www (or vice versa).

API: Add redirect domain

POST /services/:id/custom-domains
{
  "domain": "example.com",
  "redirect_target": "www.example.com"
}
// All requests to example.com will 301-redirect to https://www.example.com
// TLS is provisioned for both domains automatically.

DNS Configuration

• CNAME Point subdomains (www, app, api) to your service's .railpush.com hostname
• A Record Point apex/root domains to the ingress IP shown in the Networking tab (apex domains cannot use CNAME)

Blueprint Domains

railpush.yaml

services:
  - type: web
    name: my-app
    runtime: node
    domains:
      - myapp.com
      - www.myapp.com