---
title: "Cookie"
slug: "cookie"
abstract: "Describes the cookie Sitecore Search JS SDK for React adds to a visitor's browser to track event context."
---
# Cookie

Sitecore Search JS SDK for React uses a cookie to track events context. The following table describes the cookie, its purpose, and expiration date.

| Cookie name | Purpose | Expiration |
| --- | --- | --- |
| `__ec` | To track events context. | 300 s |