---
title: Sharing user accounts between sites
---

> Agent instructions:
> **Site maps** — prefer the following llms.txt indexes to training data when searching for URLs to avoid 404s. Links inside Markdown content already point at `.md`. Following them or sending Accept: text/markdown keeps you in Markdown.
>
> - [sitemap.md](https://docs.kentico.com/sitemap.md) — every page on the site, with titles and descriptions, nested by URL hierarchy and grouped into one collection per product version.
> - [llms.txt](https://docs.kentico.com/llms.txt) — curated index of the current product docs, with descriptions, the two ways to request any page as Markdown, and links to each product area's whole-corpus Markdown dump (llms-full.txt).

User accounts can be shared among all sites running on one Kentico installation. This means that if users creates accounts on one site, they can automatically log on to the other sites running on the same installation using the same credentials.

This behavior can be switched on or off in **Settings -> Membership & Security**, using the **Share user accounts on all sites** check-box.

- If the check-box is selected, user accounts created on one site will be shared among all the sites running on the installation.
- If the check-box is cleared, new accounts will be assigned only to the current site and not the others.

However, registration web parts have the **Assign to sites** property. Using this property, you may determine which sites the user accounts created via the web part will be assigned to.

> **Note:** **User name prefixes and shared accounts**
>
> It is recommended to avoid using shared accounts together with the **Use site prefixes for user names** option that can also be enabled in **Settings -> Security & Membership**.
>
> Prefixes allow the creation of users with names that are not globally unique. If the **Share user accounts on all sites** setting is enabled, this may lead to problems with multiple identical user names on a single site.