The LiveRamp IdentityLink (IDL) is a hashed, people-based identifier that is used for pinpointing individuals across devices and environments. IdentityLinks are created using people-specific identifiers such as an email address, but are then heavily encrypted and frequently rotated to prevent any inadvertent or accidental exposure of personal data. To help you take advantage of the benefits of the LiveRamp IDL, Index Exchange (IX) is offering a LiveRamp Real Time Identity (RTI) adapter for our IX Library™. Through the IX Library, the LiveRamp RTI adapter fetches the LiveRamp IDL, which helps publishers and buyers unlock real-time, people-based buying on the trusted web.

Why Did We Build This?

Many buyers prefer to locate specific people and audiences instead of cookie-based identifiers. Buyers are familiar with advertising directly to these types of audiences but, historically, buyers have only been able to run these people-based campaigns on walled-garden style platforms. The LiveRamp IDL via the IX Library unlocks the ability to reach people-based audiences for the real-time, trusted web.

People-based identifiers, such as the LiveRamp IDL, promote "custom audience"-style buying, where buyers have lists of users they want to reach. But in the past, this has been difficult to achieve due to a lack of scale (enough publisher supply eligible to run these campaigns). The LiveRamp Real Time Identity adapter solves this scale challenge, and reduces reliance on brittle, cookie-based match tables, where spend is limited to users whom both IX and a DSP have matched on. People-based identifiers, such as the IDL, degrade much slower than cookie-based solutions because the IDL is not affected as frequently by cookie deletion and applies across all devices.

What Are the Benefits of LiveRamp IdentityLink?

For Publishers

Publishers can expect to benefit in the following ways:

  • Higher bid value. For publishers, the primary benefit of the LiveRamp IDL is an increase in bid value, due to publishers’ inclusion of the LiveRamp IDL in real-time, bid request traffic. This allows DSPs to provide a comprehensive, people-based offering to their customers, and increase their bid activity accordingly.

For DSPs

DSPs can expect to benefit in the following ways:

  • Matched Audiences™. DSPs who partner with LiveRamp will have the ability to run real-time, Matched Audience campaigns to their end clients. DSP customers can bring customer lists from their CRM platforms, and advertise directly to these people and audiences in real time.
  • Higher match rates. DSPs can increase match rates by leveraging an additional identifier, such as the LiveRamp IDL.
  • Fewer network calls. Matches based on an IdentityLink decay slower than traditional cookie-based identifiers, and therefore require less network calls to maintain an operational match.

For IX Library Partners

IX Library partners can expect to benefit in the following ways:

  • Value. All bidding adapters in the IX Library can leverage the encrypted envelope values of the LiveRamp IDL by updating their adapter code. Updated adapters will be tested and launched as per the standard certification process. Once updated, the benefits of LiveRamp's IdentityLink will be magnified across participating bidders in the IX Library.


IX Library Partners will need to support LiveRamp's high-speed Sidecar application for IDL decryption in their ad server in order to translate the encrypted envelope into a usable IdentityLink for DSPs and buyers.

For Agencies and Marketers

Agencies and marketers can expect to benefit in the following ways:

  • Matched Audiences. Agencies and marketers will be able to reach traditional customer lists exported from CRM databases, allowing them the flexibility to plan and run Matched Audience campaigns and budgets on publisher inventory outside walled gardens such as Facebook and Google.

How Can I Leverage LiveRamp?

Like what you've read so far? See How to Use the LiveRamp IdentityLink for more information.