Vercel Complete Guide 🚀

1. What is Vercel?

Vercel is a cloud platform used to deploy frontend applications like React, Next.js, and static websites.

2. Features

- Instant deployment
- Auto CI/CD from GitHub
- Free SSL
- Global CDN
- Preview links for every commit

3. Setup Account

1. Go to vercel.com
2. Login with GitHub
3. Import project
4. Click Deploy

4. Deploy Website

Steps:
1. Push code to GitHub
2. Connect repo to Vercel
3. Click Deploy
4. Get live URL

5. React Deployment

npm run build
vercel deploy

6. Next.js Deployment

npm install
npm run build
vercel

7. Auto Deploy

Every push to GitHub → automatically updates website

8. Custom Domain

- Add domain in Vercel dashboard
- Example: myportfolio.com

9. Environment Variables

API_KEY=12345
DATABASE_URL=mongodb://...

10. Best Use Cases

• Portfolio websites
• React apps
• Next.js full stack apps
• Landing pages

11. Pro Tips

• Always connect GitHub repo
• Use production builds
• Check logs for errors
• Use preview links for testing