Various types of personal data, along with the location and online behavior of internet users, are tracked daily by real-time bidding providers. Google, Index Exchange, and PubMatic were the largest broadcasters of European consumer data in 2021, accounting for 21 percent, 14 percent, and 13 percent of all transfers, respectively. The source additionally states that the system transferred data of Europeans 197 billion times a day that year.
Distribution of real-time bidding (RTB) European consumer data transfers worldwide in 2021, by broadcaster
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Irish Council for Civil Liberties. (May 14, 2022). Distribution of real-time bidding (RTB) European consumer data transfers worldwide in 2021, by broadcaster [Graph]. In Statista. Retrieved March 17, 2025, from https://www.statista.com/statistics/1327176/rtb-transfers-european-consumer-data-company/?__sso_cookie_checker=failed
Irish Council for Civil Liberties. "Distribution of real-time bidding (RTB) European consumer data transfers worldwide in 2021, by broadcaster." Chart. May 14, 2022. Statista. Accessed March 17, 2025. https://www.statista.com/statistics/1327176/rtb-transfers-european-consumer-data-company/?__sso_cookie_checker=failed
Irish Council for Civil Liberties. (2022). Distribution of real-time bidding (RTB) European consumer data transfers worldwide in 2021, by broadcaster. Statista. Statista Inc.. Accessed: March 17, 2025. https://www.statista.com/statistics/1327176/rtb-transfers-european-consumer-data-company/?__sso_cookie_checker=failed
Irish Council for Civil Liberties. "Distribution of Real-time Bidding (Rtb) European Consumer Data Transfers Worldwide in 2021, by Broadcaster." Statista, Statista Inc., 14 May 2022, https://www.statista.com/statistics/1327176/rtb-transfers-european-consumer-data-company/?__sso_cookie_checker=failed
Irish Council for Civil Liberties, Distribution of real-time bidding (RTB) European consumer data transfers worldwide in 2021, by broadcaster Statista, https://www.statista.com/statistics/1327176/rtb-transfers-european-consumer-data-company/?__sso_cookie_checker=failed (last visited March 17, 2025)
Distribution of real-time bidding (RTB) European consumer data transfers worldwide in 2021, by broadcaster [Graph], Irish Council for Civil Liberties, May 14, 2022. [Online]. Available: https://www.statista.com/statistics/1327176/rtb-transfers-european-consumer-data-company/?__sso_cookie_checker=failed
