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Last Updated: 12/04/2025
in Privacy
Overview The Privacy API Opt-out endpoint allows authorized partners to opt out users from ID5 tracking using various privacy identifiers including ID5 ID, MAIDs, email addresses, and hashed emails. The system handles multiple identifier types an...
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Last Updated: 11/26/2025
in Retrieve ID5 IDs Prebid
ID5 Prebid Identity Insights Identity Insights is enabled through ID5's Analytics Adapted for Prebid, available for Prebid.js version 7.27.0 or higher
To help publishers better understand the value of working with ID5, we have launched Ident...
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Last Updated: 11/25/2025
When ID5 provides an ID5 ID, we may also include certain metadata. Below you will find the different types of metadata we support and the values they could contain:
Link Type
A/B Testing Control Group
Link...
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Last Updated: 11/25/2025
in Get Started
Core Value Proposition
Bid on more impressions, track conversion attribution to ultimately improve bidding strategies and campaign performance in all digital advertising environments with the ID5 ID
Enable clients to reach and engage wit...
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Last Updated: 10/08/2025
in Enrich
Overview ID5's Graph can empower ad tech platforms to unlock greater value by connecting users across both cookie-based and cookieless environments. By combining the scale of the ID5 ID footprint with the intelligence of the ID5 Identity Graph, E...
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Last Updated: 09/11/2025
in Retrieve ID5 IDs
What is Partner Data?
Partner Data includes all signals provided by partners that assist ID5 in accurately identifying users. By sharing additional information, you improve the precision, stability, and effectiveness of user identification....
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Last Updated: 06/04/2025
in Retrieve ID5 IDs
How Publishers Can Future-Proof Their Addressability Strategy Browsers and Operating Systems are taking incremental steps to obfuscate identification signals from third parties. From the recent release of Apple’s iOS15, which introduced features...
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Last Updated: 04/04/2025
in Privacy
Overview
The Privacy Requests API allows partners to automate the processing of consumers’ Data Subject Access Requests related to data stored by ID5. The Data Deletion service handles deletion of any data associated with the consumer, if ...
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Last Updated: 04/03/2025
in Retrieve ID5 IDs
Publisher Provided ID (PPID) Provisioning Some monetization and ad serving platforms like Google and Xandr supporting the passing of a Publisher Provided Identifier (PPID). Google’s PPID , for example, allows publishers to send Google Ad Manage...
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Last Updated: 04/01/2025
in Retrieve ID5 IDs
ID5 JS API Lite ID5 JS API Lite is a reduced-functionality version of the standard ID5 JS API. Unlike the full API, which facilitates a comprehensive set of identity-related functions, the Lite version is purposefully built to perform a single ...