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

The Core index contains a configurable subset of the content and media items in the Core database.

## Supported infrastructure

You can host the Core index on:

- Solr

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

## Reference structure

The Core 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 Core index's place in the Sitecore reference structure.](https://doc.sitecore.com/api/markdown-image/xp/en/developers/103/platform-administration-and-architecture/images/core.png)

### Referenced by

The Core index is referenced by the following roles:

- [Content Management](https://doc.sitecore.com/xp/en/developers/103/platform-administration-and-architecture/content-management--cm-.html "Content Management (CM)")

### References

The Core index does not reference other roles.

## Privacy and security

Assuming default behavior, the Core index does not handle personal data.