---
title: Concepts
description: Precise terms for namespaces, sites, deploys, versions, access, and usage.
audience: everyone
status: current
last_updated: 2026-09-02
order: 0
related:
  - /v/docs/concepts/sites-and-deploys.md
---

Olibato organizes durable hostnames and isolated runtimes around sites. Source
changes produce deploys and immutable versions without changing a site's
identity.

## Core concept

Read [Sites and deploys](/v/docs/concepts/sites-and-deploys/) for the canonical
model, including app templates, access control, quotas, and measured usage.

## Product terms

- **Namespace:** the permanent DNS and ownership boundary for a person or
  organization.
- **Site:** a named application with an immutable slug and permanent host inside
  one namespace.
- **Deploy:** one attempt to turn a source input and manifest into a runnable
  version.
- **Version:** an immutable, validated deploy output. A site selects one active
  version at a time.
- **Instance:** the isolated runtime for a site. It may sleep and wake without
  changing the site or host.
- **App template:** a supported, parameterized starting point that enters the
  normal deploy pipeline.