Deploy and Host posthog-proxy-advance on Railway

PostHog nginx proxy routes analytics through your domain to bypass ad blockers, enable cross-subdomain tracking, and maintain data privacy while caching static assets for improved performance.

About Hosting posthog-proxy-advance

This lightweight nginx container (256MB RAM) acts as a reverse proxy between your applications and PostHog's analytics services. It's stateless, requires no database, and automatically handles CORS for all subdomains of your base domain. Railway provides automatic SSL, environment management, and health checks, making deployment seamless. Simply set your domain and deploy - Railway handles scaling, restarts, and HTTPS termination.

Common Use Cases

Multi-subdomain SaaS platforms**: Enable analytics across app.domain.com, api.domain.com, and customer.domain.com with automatic CORS support
Ad blocker bypass: Route PostHog through your domain to ensure analytics collection even with uBlock Origin or AdBlock Plus
Enterprise compliance: Keep analytics traffic within your infrastructure for GDPR, HIPAA, or internal security requirements

Dependencies for posthog-proxy-advance Hosting

PostHog account with API key
Domain name with DNS control
Railway account (free tier works)

Deployment Dependencies

Implementation Details

// Frontend configuration after deployment
posthog.init('YOUR_POSTHOG_API_KEY', {
    api_host: 'https://your-proxy.up.railway.app',
    // or with custom domain
    api_host: 'https://analytics.yourdomain.com'
});

Required Environment Variables:

ALLOWED_DOMAIN=yourdomain.com  # Base domain (enables all subdomains)
POSTHOG_CLOUD=us              # 'us' or 'eu' based on your PostHog region

Why Deploy posthog-proxy-advance on Railway?

Railway is a singular platform to deploy your infrastructure stack. Railway will host your infrastructure so you don't have to deal with configuration, while allowing you to vertically and horizontally scale it.

By deploying posthog-proxy-advance on Railway, you are one step closer to supporting a complete full-stack application with minimal burden. Host your servers, databases, AI agents, and more on Railway.