Project slug
Your slug becomes the subdomain label: https://portfolio.77thjunction.app. Slugs are 2–48 characters, lowercase letters, numbers, and hyphens.
Change slug in Dashboard → project → Domains. Existing deployed files migrate to the new slug folder.
Wildcard DNS (*.77thjunction.app)
Professional branded URLs use one Railway custom domain: *.77thjunction.app. Railway cannot list both api.77thjunction.app and *.77thjunction.app — use wildcard only; api still resolves via the * record.
SITES_USE_PATH_URLS=false SITES_PUBLIC_HOST=https://api.77thjunction.app APP_DOMAIN=77thjunction.app
Until DNS verifies, the dashboard shows your branded URL with a path backup at api.77thjunction.app/sites/{slug}.
Custom domains
Connect your own domain (e.g. www.client.com) after first deploy. Every plan includes a domain allowance. Railway provisions CNAME + TXT; add records at your registrar, then Verify DNS.
When custom domain status is active, it becomes the primary share URL for that project.