Step-by-Step Guide
5 steps

How to Deploy v0 Apps Securely

v0 apps deploy naturally to Vercel, giving you access to Vercel security features. This guide covers the pre-deployment security configuration specific to v0-generated applications.

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Follow These Steps

1

Review and secure all API routes

Check every file in app/api/ for authentication and input validation.

Code Example
find app/api -name "*.ts" -o -name "*.tsx" | head -20
# Review each file for auth checks and validation
2

Move all secrets to Vercel environment variables

Remove any inline credentials and add them to the Vercel dashboard.

Use the "Sensitive" flag on Vercel environment variables to hide values in logs.

3

Protect preview deployments

Enable Vercel deployment protection for preview environments.

Code Example
// Vercel Dashboard > Settings > General > Deployment Protection
// Enable Vercel Authentication or Password Protection for previews
4

Configure security headers

Add headers in next.config.js as v0 apps are Next.js based.

Code Example
module.exports = {
  async headers() {
    return [{
      source: '/(.*)',
      headers: [
        { key: 'X-Content-Type-Options', value: 'nosniff' },
        { key: 'X-Frame-Options', value: 'DENY' },
        { key: 'Strict-Transport-Security', value: 'max-age=63072000; includeSubDomains; preload' },
        { key: 'Referrer-Policy', value: 'strict-origin-when-cross-origin' }
      ]
    }]
  }
}
5

Deploy and scan with VAS

Push to Vercel and run a security scan to verify the deployment.

What You'll Achieve

Your v0 app is securely deployed on Vercel with protected API routes, secure environment variables, preview deployment protection, and security headers.

Common Mistakes to Avoid

Mistake

Not protecting Server Actions

Fix

Server Actions are public HTTP endpoints. Add authentication checks to every Server Action that modifies data.

Mistake

Leaving preview deployments unprotected

Fix

Preview deployments may contain staging data or unfinished features. Enable deployment protection in Vercel settings.

Frequently Asked Questions

Does Vercel secure my v0 app automatically?

Vercel provides HTTPS and DDoS protection at the infrastructure level. Application security like headers, auth, and input validation must be configured by you.

Related Guides

Secure Your v0 AppFix v0 API Key ExposureSecure Your Vercel AppAdd Security Headers in Next.js

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