---
title: "Cookies used by Sitecore Discover"
slug: "cookies-used-by-sitecore-discover"
abstract: "Lists cookies used by Sitecore Discover along with their purpose and expiration date."
---
# Cookies used by Sitecore Discover

> [!note]
> Integration using Sitecore Discover runtime JS is deprecated.
>
> We recommend that you [use the Discover JS SDK](https://doc.sitecore.com/discover/en/developers/discover-developer-guide/deprecated-integration-methods/integrate-with-discover-runtime-js/integrate-using-discover-sdks.html "Integrate using Discover SDKs") to integrate your website or [the Discover API](https://doc.sitecore.com/discover/en/developers/discover-developer-guide/deprecated-integration-methods/integrate-with-discover-runtime-js/integrate-using-discover-rest-apis.html "Integrate using Discover REST APIs") for a website or application integration.

Sitecore Discover uses cookies for a variety of purposes. The following table lists cookies along with their purpose, expiration date, and any relevant notes:

| Cookie name | Purpose | Expiration | Notes |
| --- | --- | --- | --- |
| __ran | Analytics data to send to your analytics platform | Not set |  |
| __ranv | Discover feature status, the standard label sent to Google Analytics for page views | Depends on usage | Not set by reflektion.jsexamples: rfk_1,rw_1,sb_1 |
| __rcmp | Campaign information | 60 days |  |
| __rfav | Stores information about products that have been favorited | Not set | Currently not in use |
| __rfkp | rfk.P parameters that need to be stored in a cookie | Not set | e.g. rtt |
| __rfkpd | Cookie to overwrite rfk.P for internal use | Not set | For internal use |
| __rfpo | Current modal offer information | Not set | Only used by features that use modals |
| __rfpor | Popup rules information | 1 hour | Only used by features that use modals |
| __rfsp_l | Stores latest search page request. When user navigates backward or forward to the search page, this request is used to show the same results as before. | Not set | Only used by search pages |
| __rimg | Stores data to resubmit in case sending data in the form of an image fails | Not set | Not in use |
| __rpck | Stores the following information:C - latest counters to be sentrtts - SKUs of the latest 20 clicked elementscsp - connection speedbfiv - browser flash informationckid - cookie ID. Links user across domainsdataR - data record (information from backend)dts - delta for server and browser timesbt - battery informationsAn - analytics data sent to third partypro - page referrer origin | 30 minutes |  |
| __rpckx | Stores following information:ec - counter for individual eventt7 - time page was verified to be opent8 - time page closed | Not set |  |
| __rsev | Stores an event to be submitted in the next page | 60 days | Send Event |
| __rsu | You can set this cookie to control traffic split. If __rsu is set to 1, the user will have the Discover experience. | Not set | Selected user |
| __rslct | Comma-separated, sorted list of features for which the user is selected for the Discover experience | Not set | examples: rw,sb,sp |
| __rutma | Contains user ID, previous session start time, current session start time, visit count, total page count, and session page count | 3 years | Discover UTMACookie format: <user_id>.<previous_sesion_start_time>.<current_sesion_start_time>.<visit_count>.<total_page_count>.<session_page_count> |
| __rutmb | Tracks session of a user. Value is a domain hash. | 30 minutes |  |
| __ruid | Discover user ID | 3 years |  |
| __rpa | Predefined response | 30 minutes |  |
| __rpx | Fallback response | 30 minutes |  |