---
title: "Site settings: site-wide settings for the site package and extensions"
manual: "TYPO3 Explained"
version: "14.3"
permalink: "https://docs.typo3.org/permalink/t3coreapi:config-overview-backend-site@14.3"
source: "Configuration/Modules/SiteSettings/Index.rst"
rendered: "2026-10-01T15:20:05+00:00"
---

# Site settings: site-wide settings for the site package and extensions {#config-overview-backend-site}

TYPO3 backend administrators can set site-wide configuration options in the
modules **Sites > Setup** (Site Configuration) and
**Sites > Setup > Settings** (Site settings).

![The site settings module in the TYPO3 backend, seen by an administrator](../../../Images/ManualScreenshots/SiteHandling/SiteSettings.png)

Changes made in this module are written to file [`config/sites/my-site/settings.yaml`](../../../Administration/DirectoryStructure/SiteFolder.md#file-site-config-sites-my-site-settings-yaml).

> [!NOTE]
> **See also**
>
> -   [TYPO3 Getting Started: Site Management](https://docs.typo3.org/m/typo3/tutorial-getting-started/14.3/en-us/FirstProject/SiteManagement/Index.html#site-management)
> -   [TYPO3 Getting Started: Site settings](https://docs.typo3.org/m/typo3/tutorial-getting-started/14.3/en-us/FirstProject/Settings.html#settings_site_settings)
> -   [Creating a new site configuration](https://docs.typo3.org/permalink/t3coreapi:sitehandling-create-new@14.3)
> -   [Site settings editor](https://docs.typo3.org/permalink/t3coreapi:site-settings-editor@14.3)