Sites

Sites runs many websites from one Drupal installation, with one codebase and one database. Each site has its own domain or path, like www.hydrion.example or www.hydrion.example/uk, its own content, settings, languages and people. Sites are created in the admin UI; the site types they are built from ship as configuration.

Sites does not run separate Drupal instances or databases, and it does not host websites or manage DNS and certificates.

• New to Sites?

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  Site, site type, membership, origin site, override: the terms every other page uses, on one page.

  Concepts

• Install

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  Requirements, Composer, the modules to enable, and a second site on its own hostname.

  Installation · Quick start

• AI agents and MCP

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  Tools for an AI agent connected over MCP: create sites, change settings, share content, write overrides, with the permissions of its own account.

  AI agent tools · All tools

• Example platforms

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  An industrial group with brand and country sites, a university, a city: how each structures its platform, with a recipe to try it.

  Example platforms

Guides

• Working in a site

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  For editors and site managers who work inside one or a few sites.

  • Share content between sites
  • Adjust content for one site
  • Preview and launch a site

  Working with your sites

• Running the platform

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  For site builders and platform administrators who set up and run the platform.

  • Design site types
  • Create a site
  • Delegate a site to its people

  Build a platform

• Develop

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  For Drupal developers who make their modules site-aware or extend Sites.

  • Read the current site
  • Add a setting plugin
  • Write a satellite module

  Architecture

Last updated 2026-10-16