Ad Exchange CPM First-Party Cookies 
Martech
MARCH 15, 2022
SSPs are similar to their demand-side counterparts, but instead, they are designed for publishers to sell ad impressions at the highest CPM (cost-per-thousand impressions). SSPs operate by opening up publishers’ inventories to bidding from advertisers on ad exchanges and ad networks. First-party cookies.
Digiday
JUNE 8, 2022
Epsilon’s PubCommon ID, which is an open source first-party cookie ID in the publisher’s domain, was adopted by Prebid in 2020 and merged with SharedID. Publishers and advertisers can connect their first-party data to CORE ID’s established users’ digital identities. more efficient delivery than cookies.
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