Question 1

Vercel, Netlify, or Railway?

Accepted Answer

Vercel excels for Next.js and frontend apps. Netlify is great for static sites and Jamstack. Railway handles backend services, databases, and full-stack apps. Many startups use Vercel for frontend and Railway for backend.

Question 2

How much does hosting cost for a startup?

Accepted Answer

Most platforms offer generous free tiers. Vercel and Netlify free tiers handle significant traffic. Railway starts free with pay-as-you-go. Expect $0-50/month initially, scaling with traffic and complexity.

Question 3

What is the difference between PaaS and IaaS?

Accepted Answer

PaaS (Platform as a Service) like Vercel manages infrastructure for you—just push code. IaaS (Infrastructure as a Service) like AWS gives you raw servers to configure yourself. Startups should default to PaaS for speed.

Question 4

How do automatic deployments work?

Accepted Answer

Connect your GitHub repo to your hosting platform. When you push to main (or any branch), the platform automatically builds and deploys your app. Preview URLs for branches let you test before merging.

Question 5

Do I need to configure SSL myself?

Accepted Answer

No, modern platforms handle SSL automatically. They provision and renew certificates via Let's Encrypt. Your site gets HTTPS by default. This was painful years ago—now it's solved.

Question 6

How do I connect a custom domain?

Accepted Answer

Add your domain in the hosting platform settings, then update DNS records at your registrar. Platforms provide the exact records needed. SSL is automatically configured for custom domains too.

Question 7

What about environment variables?

Accepted Answer

All platforms support environment variables for secrets and configuration. Set them in the dashboard or CLI. Never commit secrets to Git. Different values for staging vs production are standard.

Question 8

How do I handle databases?

Accepted Answer

Railway, Render, and Fly.io can host databases alongside your app. Alternatively, use managed database services like Supabase, PlanetScale, or Neon. Separating app hosting from database hosting is often cleaner.

Question 9

What are serverless functions?

Accepted Answer

Code that runs on demand without managing servers. Vercel and Netlify support serverless functions for API endpoints. Great for simple backends without running a full server. Pay only when they execute.

Question 10

How do I monitor my deployed application?

Accepted Answer

Platforms provide basic analytics and logs. Add error tracking (Sentry), performance monitoring (Datadog), and uptime monitoring (Better Uptime) as you grow. Start simple, add monitoring when you need it.

Question 11

What happens if my site goes viral?

Accepted Answer

Modern platforms auto-scale. Vercel and Netlify handle traffic spikes automatically on their CDNs. Railway and Render scale containers as needed. You may hit free tier limits and need to upgrade, but sites stay up.

Question 12

Should I use Docker?

Accepted Answer

Not required for most startups. Platforms like Railway and Render support Docker if you need it. Vercel and Netlify abstract away containers entirely. Use Docker when you need specific runtime control or reproducibility.

Question 13

How do I set up staging and production environments?

Accepted Answer

Most platforms create preview deployments for each branch automatically. Use main for production and a staging branch for pre-production testing. Configure different environment variables for each.

Question 14

What is a CDN and do I need one?

Accepted Answer

A Content Delivery Network caches your content on servers worldwide for faster loading. Vercel and Netlify include CDNs by default. Cloudflare adds CDN to any hosting. Essential for performance.

Question 15

When should I consider AWS, GCP, or Azure?

Accepted Answer

When you need services not available on simpler platforms: specialized ML tools, specific compliance requirements, or extreme customization. Most startups never need the big three directly—PaaS is sufficient.

Question 16

How do I handle deployment failures?

Accepted Answer

Platforms show build logs to diagnose failures. Common issues: missing dependencies, environment variables, or build script errors. Failed deployments don't affect your live site—the last successful deploy stays active.

Question 17

What is zero-downtime deployment?

Accepted Answer

Deploying new versions without taking the site offline. Modern platforms handle this automatically—they start the new version before stopping the old one. Your users never see downtime during deployments.

Question 18

Can I run background jobs or cron tasks?

Accepted Answer

Railway, Render, and Fly.io support background workers and cron jobs. Vercel has cron functions. For simple needs, services like Inngest or Trigger.dev add job processing to any hosting platform.

I need to deploy my application to production

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