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Deploy on Vercel

A step-by-step guide to deploying Next.js projects on Vercel, covering env variables, domains and common pitfalls.

Deploy on Vercel
Ömer Halis Demir

WRITTEN BY

Ömer Halis Demir

Full Stack Developer

One of the easiest ways to ship a Next.js project is Vercel. Automatic deploys on git push, a global CDN and preview environments speed up both development and production. This guide walks through publishing on Vercel from scratch.

GitSource code
CDNGlobal delivery
PreviewPer-PR environment

What Is Vercel?

Vercel is a frontend cloud platform from the team behind Next.js. It lets you manage static sites, SSR/ISR apps and serverless functions from one dashboard.

  • Zero-config deploy: Next.js projects are detected without extra setup.
  • Edge Network: Content is served from edge locations worldwide.
  • Preview URLs: Each branch and pull request gets its own test URL.

Why Vercel?

FeatureTraditional hostingVercel
SetupManual server and nginx configAutomatic via Git
SSLSeparate certificate managementAutomatic HTTPS
ScalingManual capacity planningServerless, on demand
Next.js fitExtra optimization neededNative support
Preview envOften missing or separate serverReady URL per PR

Before You Deploy

  1. Have your project in a GitHub, GitLab or Bitbucket repository.
  2. Confirm npm run build completes without errors locally.
  3. Keep secrets (database URLs, API keys) in .env; never commit them.
  4. List production variables such as DATABASE_URL, NEXTAUTH_SECRET, RESEND_API_KEY.

Steps to Deploy on Vercel

1. Account and project

Sign up at vercel.com, choose Add New → Project and connect your Git repo. Vercel detects the framework automatically.

2. Build settings

Defaults work for most Next.js apps: Build Command next build, Output Directory .next. No changes needed unless you use a monorepo.

3. Environment variables

Add them under Project Settings → Environment Variables for Production, Preview and Development separately. Adding them before the first deploy avoids build failures.

4. Deploy

Click Deploy and watch the build logs. On success your site is live at project-name.vercel.app.

Connecting a Custom Domain

If you own a domain, go to Settings → Domains in the Vercel dashboard, add your domain and point DNS records.

  • Apex domain (example.com): Use the A record Vercel provides.
  • Subdomain (www.example.com): CNAME to cname.vercel-dns.com.
  • DNS propagation can take minutes to 48 hours; SSL is issued automatically.

Practical tip

Keeping DNS at your registrar and only pointing the required A/CNAME records to Vercel is the most common and safe approach. Moving nameservers entirely is optional.

Preview vs Production

Every git push triggers a new deployment. The main or master branch goes to production; other branches get preview URLs. Share these for client review and QA.

If production breaks, use Instant Rollback on the Deployments tab to return to the last good release.

Common Issues

  • Build failure: Run npm run build locally; TypeScript and lint errors fail the same way on Vercel.
  • Missing env var: Undefined process.env values at runtime usually mean they were not set for Production.
  • Prisma / DB: Watch connection pool limits in serverless; use pooling (e.g. PlanetScale, Neon) when needed.
  • Image domain error: Define external hosts in images.remotePatterns in next.config.

Vercel Pricing

The Hobby plan is free for personal and small projects with bandwidth and build-minute limits. Pro or Enterprise fits higher traffic, team collaboration and SLA needs. Domains and email are billed separately outside Vercel.

Professional Deploy Support

Vercel setup looks simple, but DNS, environment variables, database connections and CI/CD flow determine production reliability. Veltstack website packages include Vercel publishing support; we handle domain routing and the first production deploy for you.

Conclusion

Publishing Next.js on Vercel is fast, secure and scalable. Git-based workflow, automatic SSL and preview environments are essential parts of modern web delivery. Contact us if you need help taking your project live.

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