Cookie policy

Last updated: 28 September 2026.

This cookie policy explains how Parity (“we”, “us”, “our”) uses cookies and similar technologies on this website: which cookies are set, who sets them, what they store and how long they last. It applies to every page of this website and should be read together with the privacy policy.

A cookie is a small text file that a website stores in your browser and that is sent back to the domain that set it on later requests. A cookie set on the domain of this website is a first-party cookie. A cookie set on another domain is a third-party cookie, and the owner of that domain can read it on any other website that uses its services.

Similar technologies include browser storage, in which a website keeps values in your browser without sending them with each request. Per-tab storage is discarded when the tab is closed.

Sign-in cookies: authenticate users of the Parity admin and operator portal. See section 4.

Preference cookies: record choices you make on this website, such as colour mode and language. See section 5.

Demonstration cookies: support the self-guided demonstration of the player experience. See section 6.

Visitor identification cookies: set by a third-party visitor identification service and its partners, and used to identify the person and company behind a visit. See section 7.

The cookies in sections 4 to 6 are set and read by Parity only. The cookies in section 7 are set by third parties, some of them on their own domains.

There is no consent banner on this site. Cookies in every category are set when the page is loaded or the relevant action is taken, without a prior consent step.

parity_session: authenticates a signed-in user of the Parity admin or operator portal. Set by Parity, only after a successful sign-in. Contains a random token and no information about you; the server stores only a hash of the token. HttpOnly, so it cannot be read by page scripts. Expires twelve hours after sign-in or after one hour of inactivity, whichever is sooner, and is cleared on sign-out.

predicta_session: the name under which the sign-in cookie was set before the service was renamed. Read by Parity so that a deployment does not end sessions in progress; never set. Cleared on sign-out.

em_theme: records your colour mode, dark or light, so that the page is rendered in that mode from the first paint. Set by Parity. One year.

em_accent: records the brand accent colour. In an operator deployment this is the operator’s setting rather than a visitor’s; on this website it allows the site to be displayed in a partner’s colours. Set by Parity. One year.

em_locale: records your interface language. Set by Parity when you choose a language, including by opening a language-specific address on this website. One year.

em_region: records which region’s markets are shown first. Set by Parity. One year.

Each preference cookie is set by the server when you use the corresponding control (or, for em_locale, open a language-specific address), is SameSite=Lax, holds a single short value from a fixed list, and does not identify you.

parity_demo_session: keeps your demonstration quotes, orders and suggestions separate from those of other visitors. Set by Parity the first time you request a quote in the self-guided demonstration; never set in the embedded interface that operators provide to their customers. Contains a random token derived from nothing about you; the server stores only a hash of the token. HttpOnly and SameSite=Lax. Expires thirty days after it is set, or after seven days without use, whichever is sooner. Hiding the demonstration’s suggestions with their X does not affect it.

parity_interests: records up to four market categories in which you have placed the most demonstration bets, so that those categories can be shown first on the markets board. Written by the page in your browser when you place a bet in the self-guided demonstration, and read by Parity’s server. Contains category names only, with no market, stake, price or identifier. SameSite=Lax. One year.

These cookies are set by RB2B, a visitor identification service described in the privacy policy, and by identity-resolution partners whose scripts the RB2B tag loads.

The RB2B tag runs on the marketing pages of this website only: the home page, the product and industry pages, the pricing, security, contact and careers pages, the blog, the case studies, the developer documentation and these policies. It does not run on the market catalogue, on a market, position or order page, in the embedded interface that operators provide to their customers, or on the Parity admin or operator portal, and none of the cookies in this section is set on those pages.

_reb2buid: a random identifier for your browser. The same value is also kept in browser storage, so clearing only one of the two leaves your browser identifiable by the other. Set by RB2B. 360 days.

_reb2bsessionID: a random identifier for a single visit. Set by RB2B. Approximately thirty minutes.

_reb2bgeo: the result of a lookup of your IP address performed by the tag, holding your city, region, country, postal code, timezone and internet provider. Set by RB2B. 20 days.

_lc2_fpi: an identifier set by LiveIntent, an identity-resolution partner from which the tag loads a second script. 400 days.

_lc2_fpi_js: holds the same value as _lc2_fpi. Set by LiveIntent. Expires at the end of the browser session.

_li_dcdm_c: set by LiveIntent. Expires at the end of the browser session.

The following are third-party cookies, set by the tag’s partners on their own domains rather than on this website’s domain. Those partners can read them on any other website that uses the same partners.

tuid: set on a.usbrowserspeed.com. 365 days.

uuid: set on alocdn.com. 365 days.

lidid: set on liadm.com. 400 days.

When you visit or log in to our website, cookies and similar technologies may be used by our online data partners or vendors to associate these activities with other personal information they or others have about you, including by association with your email. We (or service providers on our behalf) may then send communications and marketing to these email addresses. You may opt out of receiving this advertising by visiting https://app.retention.com/optout.

Demonstration wallet: the self-guided demonstration keeps its illustrative wallet and daily streak in your browser’s storage rather than in a cookie.

Session clock: the session clock and reality-check prompt keep two values in per-tab storage: how long you have been actively using the page, and which prompt you last acknowledged. They are discarded when the tab closes and are not sent anywhere.

Suggestions setting: hiding the demonstration’s suggestions with their X keeps one value in per-tab storage recording that they are hidden. It is discarded when the tab closes, so the suggestions return on your next visit, and it is not sent anywhere.

Embed session token: the embedded interface does not store its session token in a cookie, in browser storage or in a URL. The token is held only for the life of a single frame.

The third parties that set cookies through this website are RB2B and the identity-resolution partners listed in section 7, including LiveIntent. Parity does not control cookies set on third-party domains and cannot remove them from your browser.

The opt-out in section 7 is operated by the vendor, not by Parity, and is the only opt-out Parity currently offers for the visitor identification cookies.

Browser settings: most browsers allow you to block cookies, delete them, or block third-party cookies only. Blocking cookies on this website prevents sign-in to the Parity admin and operator portal.

Clearing site data: clearing this website’s data in your browser removes every cookie set on this website’s domain and the values held in browser storage, including the copy of _reb2buid kept there. The preference settings return to their defaults, and the demonstration identity ends, so the next demonstration quote starts a new one.

Third-party cookies: clearing this website’s data does not remove tuid, uuid or lidid, which are held on the partners’ domains. Clearing your browser’s third-party cookies does.

Signing out: signing out of the portal clears parity_session and predicta_session.

Advertising opt-out: to opt out of the advertising that the visitor identification cookies support, use the opt-out link in section 7.

Parity may update this policy, including when the cookies or similar technologies used on this website change. The revised policy applies from the date it is published on this page, and the “Last updated” date in section 1 is changed accordingly.

Questions about this policy or about the cookies used on this website may be sent to Parity through the contact form.