Hostname Rewrites

If you're building a Platforms on Vercel, this example is for you.

In this example, you'll learn how to programmatically create unique content pages for your users with a multi-tenant infrastructure using Edge Middleware. Each user gets assigned a unique subdomain when they create their account, with the (usually paid) option to add a custom domain.

For context, here are some example pages:

• subdomain-1.vercel.sh (subdomain)
• subdomain-2.vercel.sh (subdomain)
• subdomain-3.vercel.sh (subdomain)
• custom-domain-1.com (custom domain, maps to subdomain-1.vercel.sh)

All of these generated sites are powered by ISR (no SSR at all) so they load pretty much instantly + the inter-page transitions are lightning fast.

The example above is generated based on the following mock database:

const mockDB = [
    {name: "Site 1\