---
title: "Personalization index"
slug: "personalization-index"
abstract: "Overview of Sitecore Personalization index supported infrastructure, references, and privacy and security."
---
# Personalization index

The Personalization index stores information about which page definition items in the content tree are personalized and which personalization rules the pages use. The index drives [the Personalization dashboard tab](https://doc.sitecore.com/xp/en/users/100/sitecore-experience-platform/using-the-personalization-dashboard.html) in the Experience Optimization application.

## Supported infrastructure

You can host the Personalization index on:

- Solr
- Azure Search

Refer to the [Sitecore compatibility table](https://kb.sitecore.net/articles/087164) for compatible versions.

## Reference structure

The Personalization index has its place in the Sitecore reference structure. It can be referenced by other roles, and it can also reference other roles.

![Illustration showing the Personalization index's place in the Sitecore reference structure.](https://doc.sitecore.com/api/markdown-image/xp/en/developers/100/platform-administration-and-architecture/images/XP_-_Pers_Indx_Refs_-_93.png)

### Referenced by

The Personalization index is referenced by the following role:

- [Content Management](https://doc.sitecore.com/xp/en/developers/100/platform-administration-and-architecture/content-management--cm-.html "Content Management (CM)")

### References

The Personalization index does not reference other roles.

## Privacy and security

Assuming default behavior, the Personalization index does not store personal data.