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| Cookie | Category | Purpose |
|---|---|---|
ret_user_id_ct | Marketing | Stores a unique user ID for tracking usage behavior, optimizing experience, and enabling marketing functionality. |
rl_anonymous_id | Analytics | Stores the anonymous ID. By default, it would be the auto-generated unique ID by SDK for each visitor unless overridden via setAnonymousId API. All the subsequent event payloads will contain this data unless cleared from the storage. |
rl_auth_token | Analytics | Stores the authentication token passed by the user. |
rl_group_id | Analytics | Stores the user group ID set via the group API. All the subsequent group event payloads will contain this data unless cleared from the storage. |
rl_group_trait | Analytics | Stores the user group traits object set via the group API. All the subsequent group event payloads will contain this data unless cleared from the storage. |
rl_page_init_referrer | Analytics | Stores the initial referrer of the page when a user visits a site for the first time. All the subsequent event payloads will contain this data. |
rl_page_init_referring_domain | Analytics | Stores the initial referring domain of the page when a user visits a site for the first time. All the subsequent event payloads will contain this data. |
rl_session | Analytics | Stores the session-related information including sessionId if session tracking is enabled. |
rl_trait | Analytics | Stores the user traits object set via the identify API. All the subsequent event payloads will contain this data unless cleared from the storage. |
rl_user_id | Analytics | Stores the user ID set via the identify API. All the subsequent event payloads will contain this data unless cleared from the storage. |
test_rudder_cookie | Analytics | Checks whether the cookie storage of a browser is accessible or not. Once checked, the SDK removes the cookie immediately. |
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Last updated 2026-09-27.