Per-user custom domain/subdomain mapping for user-generated pages

Title: Per-user custom domain/subdomain mapping for user-generated pages

Description:

We're building a platform where users create their own websites/galleries served at generated URLs (e.g.

/gallery/[id]

). We'd like to give users the ability to publish their site under a custom name — either:

• A custom subdomain (e.g.

  username.ourdomain.com

  )

• Or a fully custom domain they bring themselves (e.g.

  theirsite.com

  ) that maps to their specific page within our app

Current limitation: Base44 only supports connecting a single custom domain to an entire app, not to individual user pages or sub-paths within an app.

Requested feature: A way to map custom domains or subdomains to specific routes/pages within a Base44 app on a per-user or per-record basis — similar to how platforms like Webflow, Squarespace, or Framer allow end-users to connect their own custom domains to their individual published sites.

Use case: Multi-tenant / website builder apps where each user's published site should have its own branded URL.