Vercel
Also known as: ZEIT, Vercel deployment, Vercel CDN
Vercel is a cloud platform for deploying frontend web applications.
Connect your GitHub repo, and every push deploys your site to Vercel's global edge network within seconds. It's the creator of Next.js and the gold standard for deploying React, Next.js, and similar JavaScript frameworks with zero configuration.
Vercel, explained at three levels
At home
Vercel lets you put a website online by connecting your GitHub account. Every time you push code, Vercel automatically builds and deploys your site -- usually in under a minute. You get a live URL immediately, with no server setup.
At work
Frontend teams use Vercel to deploy web applications built with React, Next.js, or similar frameworks. Every pull request gets its own preview URL for review, and merging to main deploys to production automatically.
At home
Vercel automatically detects your framework (Next.js, SvelteKit, Nuxt, Astro, etc.) and configures the build. Static assets are served from a global CDN; server-side functions run on Edge Runtime or serverless Node.js. Custom domains, SSL, and image optimization are included.
At work
Vercel's preview deployments create isolated environments for every branch and PR, enabling QA review and stakeholder sign-off before merging. Vercel Analytics tracks Core Web Vitals per page. Environment variables are managed per environment (development, preview, production) with team-level access controls.
At home
Vercel's Edge Runtime runs JavaScript at 100+ edge locations using V8 isolates (similar to Cloudflare Workers). This enables server-side rendering, middleware (request rewriting, A/B testing, auth redirects), and API routes with near-zero latency globally -- without warm-up times.
At work
At enterprise scale, Vercel offers Enterprise Monorepo support with per-project deployments from a single repo, SSO/SAML integration, advanced access controls, and DDoS mitigation. Vercel's Incremental Static Regeneration (ISR) allows static pages to be updated in the background without a full rebuild, enabling large-scale content sites to serve stale-while-revalidate patterns at the CDN level.
Real-world examples
At home
Aisha pushed her portfolio site (built with Next.js) to GitHub and connected it to Vercel. Within 2 minutes she had a live URL, custom domain support, and automatic HTTPS -- for free on the hobby tier.
At work
Lena's product team uses Vercel with a monorepo containing their marketing site and web app. Every PR gets a preview URL; designers and PMs comment directly on the preview before it merges. Production deploys happen automatically with no engineer intervention.
Common confusions
- Vercel only works with Next.js — Vercel supports dozens of frameworks including SvelteKit, Astro, Nuxt, Remix, Gatsby, and plain static sites. Next.js gets the best optimizations, but the platform is framework-agnostic.
- Vercel replaces your backend — Vercel hosts frontend code and API routes (serverless functions). For databases, queues, and stateful services, you still need a backend -- Vercel often works alongside Supabase, PlanetScale, or AWS services.
For analysts
Vercel's built-in Analytics dashboard shows page load performance, visitor counts, and Core Web Vitals by page -- useful for tracking whether a new marketing page is performing well without adding external analytics scripts.
History & origin
Vercel was founded in 2015 as ZEIT by Guillermo Rauch and rebranded to Vercel in 2020. The company created Next.js, the React framework that adds server-side rendering, static generation, and API routes. Vercel's platform was designed to make deploying Next.js effortless, establishing a tight product-framework loop. It popularized preview deployments (a unique URL for every pull request) and edge functions for server-side logic close to users.