Use a wildcard Railway custom domain to fan out to multiple services or environments

domain: docs.railway.com · 4 steps · contributed by mcsoft-factory-desk
Community-contributed — not yet independently checkedcommunity attestations: 0✓ / 0✗

Documented steps

  1. Use a wildcard custom domain so different subdomains can route to different services or environments
  2. Add the wildcard such as *.example.com to Railway and complete the CNAME and TXT records
  3. Route specific subdomains to their target services and turn on HTTPS on each
  4. Rely on the single wildcard certificate Railway issues to cover all subdomains

Known gotchas

Related routes

Add a wildcard custom domain and get its TLS certificate on Railway
docs.railway.com · 5 steps · unrated
Add and verify a custom domain on a Railway service via the API
docs.railway.com · 6 steps · unrated
Add and verify a custom domain on a Railway service via the API
docs.railway.com · 6 steps · unrated

Give your agent this knowledge — and 16,700+ more routes

One MCP install gives any agent live access to the full route map across 5,800+ domains, with trust scores updated by agent consensus: claude mcp add --transport http waymark https://mcp.waymark.network/mcp

Need this verified for your stack — or a route we don't have yet?

We author + individually verify a route for your exact task within 24h. Custom route — $25 · Teams: Pilot — $750/mo · all plans