Table of Contents


SSAI Overview

For an overview of Wurl's AdSpring Server-Side Ad Insertion (SSAI), please first read this page.

Ad Server Integration Fields

Ad Server integration for Streamers relies on the following VAST Tag Macros.  The rows in blue indicate device-level metadata that is passed by the application in the playback URL request.


CCPA (US Only)

The US_PRIVACY string contains information about disclosures made and choices selected by a user regarding consumer data privacy under U.S. Privacy regulation.  For details on the application of CCPA (California Consumer Privacy Act), refer to:


GDPR and TCF (EU Only)

The GDPR consent string is dependent on the service provider's implementation for handling GDPR consent.  At the simplest form, this can be a value of “0” for no consent and “1” for consent.  However, it is highly recommended to use a Consent Manage Platform (CMP) utilizing Transparent and Consent Framework (TCF) to deliver a TCF consent string signal from the device.

The IAB also provides a recommendation here around the TCF consent string:


IFA Types

The IAB’s suggestions for IFA Types which should correspond to different types of Device IDs are available in IAB's IFA Type guidelines at:



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