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Last Updated: 05/21/2026
in Enrich
This guide explains how to use EID (Extended Identifier) information from an ID5 endpoint response to enrich outgoing OpenRTB bid requests for both OpenRTB 2.6 and 2.5.
Identify and Extract EID Data from ID5 Endpoint Response
The necess...
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Last Updated: 05/21/2026
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: 05/21/2026
in Enrich
Overview ID5's Graph empowers publishers (and their tech partners) 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 I...
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Last Updated: 05/19/2026
in Retrieve ID5 IDs
Overview
We recommend that you deploy ID5 in mobile in-app environments via a server to server integration. We do support alternative integration pathways depending on your requirements. If required, please reach out to your ID5 customer...
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Last Updated: 05/19/2026
in Privacy
ATT Signal Processing (iOS) Apple's App Tracking Transparency (ATT) framework gives users control over whether apps may track them across other apps and websites. Because ID5 integrates via server-to-server (S2S), it processes only the data and...
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Last Updated: 05/18/2026
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: 04/24/2026
in Retrieve ID5 IDs
Overview
We recommend that you deploy ID5 in CTV environments via a server to server integration. We do support alternative integration pathways depending on your requirements. If required, please reach out to your ID5 customer services rep...
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Last Updated: 04/24/2026
in Cookie Sync with ID5
Process Overview
While third-party cookies are still in use, ID5 can synchronize with ad tech vendors to enhance user recognition, improving audience addressability and monetization.
ID5 can provide a pixel that can be added to publis...
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Last Updated: 04/24/2026
in Cookie Sync with ID5
Process Overview
As part of our synchronization process, we will need to make requests to your system that will return back to ID5 with your UID. There are several methods supported for this process that are explained in more detail.
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Last Updated: 04/23/2026
in Access Identity Graphs
Overview
With the Partner Graph File Transfer, your AWS S3 bucket will be filled at regular time intervals with either (1) streaming new and updated Match Partner UIDs every 30 minutes coming from the cascading process or (2) dail...