
Originally appeared on MarTech Series
Marketing’s understanding of identity has evolved rapidly over the past decade, much like the shifting media landscape itself. From the early days of basic direct mail targeting to today’s complex omnichannel environment, identity has become both more powerful and more fragmented. Each era has brought new tools, challenges, and opportunities, shaping how brands interact with their customers.
We’ve moved from traditional media like mail, newspapers, and linear/network TV, to cable TV, the internet, mobile devices, and apps. Now, multiple streaming platforms dominate, creating a far more complex media landscape. As a result, understanding the customer journey and reaching consumers across these various touchpoints has become increasingly difficult. Managing frequency and ensuring effective communication across channels is now more challenging than ever.
This development has led to a fragmented view of the consumer, making it harder for marketers to ensure that they are reaching the right audience at the right time while also avoiding oversaturation. Marketers must now navigate a fragmented customer journey across multiple channels, each with its own identity signals, to stitch together a cohesive view of the customer.
Let’s break down this evolution, era by era, to understand how identity has progressed—and where it’s headed.
2010-2015: The rise of digital identity – Cookies and MAIDs
Between 2010 and 2015, the digital era fundamentally changed how marketers approached identity. Mobile usage surged during this time, and programmatic advertising emerged as the dominant method for reaching consumers across the internet.
The introduction of cookies and mobile advertising IDs (MAIDs) became the foundation for tracking users across the web and mobile apps. With these identifiers, marketers gained new capabilities to deliver targeted, personalized messages and drive efficiency through programmatic advertising.
This era gave birth to powerful tools for targeting. Marketers could now follow users’ digital footprints, regardless of whether they were browsing on desktop or mobile. This leap in precision allowed brands to optimize spend and performance at scale, but it came with its limitations. Identity was still tied to specific browsers or devices, leaving gaps when users switched platforms. The fragmentation across different devices and the reliance on cookies and MAIDs meant that a seamless, unified view of the customer was still out of reach.
2015-2020: The age of walled gardens
From 2015 to 2020, the identity landscape grew more complex with the rise of walled gardens. Platforms like Facebook, Google, and Amazon created closed ecosystems of first-party data, offering rich, self-declared insights about consumers. These platforms built massive advertising businesses on the strength of their user data, giving marketers unprecedented targeting precision within their environments.
However, the rise of walled gardens also marked the start of new challenges. While these platforms provided detailed identity solutions within their walls, they didn’t communicate with one another. Marketers could target users with pinpoint accuracy inside Facebook or Google, but they couldn’t connect those identities across different ecosystems. This siloed approach to identity left marketers with an incomplete picture of the customer journey, and brands struggled to piece together a cohesive understanding of their audience across platforms.
The promise of detailed targeting was tempered by the fragmentation of the landscape. Marketers were dealing with disparate identity solutions, making it difficult to track users as they moved between these closed environments and the open web.
2020-2025: The multi-ID landscape – CTV, retail media, signal loss, and privacy
By 2020, the identity landscape had splintered further, with the rise of connected TV (CTV) and retail media adding even more complexity to the mix. Consumers now engaged with brands across an increasing number of channels—CTV, mobile, desktop, and even in-store—and each of these channels had its own identifiers and systems for tracking.
Simultaneously, privacy regulations are tightening the rules around data collection and usage. This, coupled with the planned deprecation of third-party cookies and MAIDs has thrown marketers into a state of flux. The tools they had relied on for years were disappearing, and new solutions had yet to fully emerge. The multi-ID landscape was born, where brands had to navigate multiple identity systems across different platforms, devices, and environments.
Retail media networks became another significant player in the identity game. As large retailers like Amazon and Walmart built their own advertising ecosystems, they added yet another layer of first-party data to the mix. While these platforms offer robust insights into consumer behavior, they also operate within their own walled gardens, further fragmenting the identity landscape.
With cookies and MAIDs being phased out, the industry began to experiment with alternatives like first-party data, contextual targeting, and new universal identity solutions. The challenge and opportunity for marketers lies in unifying these fragmented identity signals to create a consistent and actionable view of the customer.
2025: The omnichannel imperative
Looking ahead to 2025 and beyond, the identity landscape will continue to evolve, but the focus remains the same: activating and measuring across an increasingly fragmented and complex media environment. Consumers now expect seamless, personalized experiences across every channel—from CTV to digital to mobile—and marketers need to keep up.
The future of identity lies in interoperability, scale, and availability. Marketers need solutions that can connect the dots across different platforms and devices, allowing them to follow their customers through every stage of the journey. Identity must be actionable in real-time, allowing for personalization and relevance across every touchpoint, so that media can be measurable and attributable.
Brands that succeed in 2025 and beyond will be those that invest in scalable, omnichannel identity solutions. They’ll need to embrace privacy-friendly approaches like first-party data, while also ensuring their systems can adapt to an ever-changing landscape.
Adapting to the future of identity
The evolution of identity has been marked by increasing complexity, but also by growing opportunity. As marketers adapt to a world without third-party cookies and MAIDs, the need for unified identity solutions has never been more urgent. Brands that can navigate the multi-ID landscape will unlock new levels of efficiency and personalization, while those that fail to adapt risk falling behind.
The path forward is clear: invest in identity solutions that bridge the gaps between devices, platforms, and channels, providing a full view of the customer. The future of marketing belongs to those who can manage identity in a fragmented world—and those who can’t will struggle to stay relevant.
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Tapad launches global privacy-safe solution to provide continuity in the absence of third-party cookies Switchboard, a module within The Tapad Graph, will connect emerging cookieless identifiers to traditional IDs, creating a more holistic view of the consumer and driving value exchange within the advertising ecosystem Tapad, part of Experian, a global leader in cross-device digital identity resolution, and a part of Experian, announced today the launch of Switchboard, a first-of-its-kind solution to help navigate the evolving cookieless landscape. Switchboard, a module within The Tapad Graph, will operate as a global, privacy-safe solution to provide continuity in the absence of third-party cookies by connecting new cookieless identifiers to traditional digital IDs for a comprehensive view of consumers and their digital touchpoints. Switchboard will enable interoperability across the growing number of these digital identifiers and the value exchange between publishers, content creators and consumers. Leading digital identity solutions partnering with Tapad, part of Experian at the launch of Switchboard include Unified ID 2.0, ID5, Lotame Panorama ID, BritePool, Retargetly IDx and Audigent Halo ID. Tapad, part of Experian plans to expand support to additional identity solutions on an ongoing basis. In addition to these identity solutions, early partners across the ecosystem include The Trade Desk, Amobee, Martin, ShareThis, Eyeota and Catalina. “This diverse group of launch partners and testing customers will prove that Switchboard is an important tenet for the future of identity resolution. We’re excited to be proactive in our approach to give marketers time to adapt new solutions and test their function in tandem with the third-party cookie, while continuing to give our customers flexibility and control,” said Mark Connon, General Manager of Tapad, part of Experian. “Facilitating access and usage of 1st party identifiers is crucial to help marketers prepare for the cookieless future. Thanks to Switchboard, ID5's cookieless IDs will be available to a wider audience of brands and agencies and enable them to run effective, data-driven campaigns beyond the third-party cookie,” said Mathieu Roche Co-founder & CEO of ID5. Switchboard provides value across the marketing and advertising ecosystem as the need for the ability to support multiple cookieless ID’s across ad tech increases throughout 2021. With a decade of expertise creating digital identity resolution products, Tapad, part of Experian is poised to solve this challenge through innovation and quality, privacy-safe data-driven solutions. “Interoperability is paramount for brand marketers, agencies, publishers and platforms if we want to support an open and free Internet and break free of the stranglehold of walled gardens,” said Pierre Diennet, Global Partnerships at Lotame. ”Lotame Panorama ID’s participation in Switchboard reflects our steadfast commitment to collaborating across and within the industry and providing value to all of its players.” “As advertisers continue to contemplate the future of identity, Amobee is proud to partner with Tapad, part of Experian on this next-generation solution to provide a comprehensive view of consumers,” says Bryan Everett, Senior Vice President of Global Business Development at Amobee. “With the imminent loss of cookies, advertisers must think creatively in order to respectfully engage consumers in a privacy-compliant way and Switchboard can play an important role in addressing their respective identity needs.” Tapad, part of Experian is welcoming identity solutions and Tapad Graph customer participation in Switchboard throughout 2021. Stayed tuned for more updates and information on Switchboard in the coming months. Get started with The Tapad Graph For personalized consultation on the value and benefits of The Tapad Graph for your business, email Sales@tapad.com today!

Adapt with Tapad, a part of Experian Leading browsers have made public announcements and technical deployments to reduce the digital advertising accessibility of third-party cookies for data collection, storage, and sharing due to growing privacy concerns. As a result, there has been growing momentum to find an alternative via cookieless IDs, with the intent to create a replacement that helps ensure continuity across the ecosystem. At Tapad we’ve chosen to approach the market with a solution that provides agnostic interoperability for these cookieless identifiers, so that marketers can continue to work with the identity providers of their choice while maintaining the most holistic view of consumers across digital touchpoints. Introducing switchboard Switchboard is a module within The Tapad Graph that leverages our core capabilities across machine learning and identity management to provide a connection between traditional digital identifiers and the new wave of cookieless IDs that will be utilized in the future. Customers of Tapad can take advantage of its broad ecosystem of identifiers to drive targeting and frequency capping strategies and enable detailed measurement and attribution post-deprecation of the third-party cookie. Our goal is to accelerate the adoption, scale, and utility of cookieless IDs with the release of the Switchboard module within The Tapad Graph, while maintaining an agnostic approach to the market. Switchboard for identity solutions In the evolving landscape agencies and marketers will need to invest, test, and analyze the best combination of cookieless ID partners to meet their objectives. The Switchboard module will increase the utility and value of the cookieless ID space in conjunction with other addressable IDs, by providing a layer of connectivity that will be natively missing with the deprecation of third-party cookies. Identity solutions at launch: Switchboard for graph customers For existing Tapad customers who leverage the Switchboard module in The Tapad Graph, it will provide a seamless way to facilitate interoperability while resolving identity back to a Household or Individual. By providing this translation layer, Tapad will take on the responsibility of encryption and decryption protocols where applicable, which will deliver added functionality to our customers. Tapad + Experian partners at launch: Use cases Resolve existing first-party data with new cookieless solutions through The Tapad Graph to minimize data loss Frequency cap at the Individual and Household level via Cookieless and traditional ID Reach consumers at scale across all touchpoints and IDs Build a more inclusive and holistic view of the consumer journey Run accurate and scalable measurement before and after the formal deprecation of third-party cookies in Chrome Map online data into offline activities Hear why industry leaders are adapting with Tapad + Experian As advertisers continue to contemplate the future of identity, Amobee is proud to partner with Tapad, a part of Experian, on this next-generation solution to provide a comprehensive view of consumers. With the imminent loss of cookies, advertisers must think creatively in order to respectfully engage consumers in a privacy-compliant way and Switchboard can play an important role in addressing their respective identity needs. — Bryan Everett | Senior Vice President of Global Business Development | Amobee Connecting offline and online shopper activity in a privacy-compliant way is fundamental to marketing effectiveness and determining return on ad-spend. That’s why we’re excited to be a launch partner for Tapad + Experian's Switchboard offering; it provides a unified solution for supporting the variety of proprietary and anonymous user ID standards required by advertising demand-side platforms today. — Brian Dunphy | SVP Digital Business and Strategic Partnerships | Catalina As the industry evolves, Tapad + Experian's Switchboard presents a privacy-safe solution that allows for the continued activation of data and an alternative to advertising within walled garden environments. We look forward to collaborating with Tapad and the industry as we collectively transition to support cookieless identity. — Don Lee |SVP of Global Platform Partnerships | Eyeota We are excited to participate in this proactive solution to the sunset of third-party cookies. Switchboard’s agnostic interoperability, with BritePool and other ID providers, will create high-value for marketers as they transition to the era of cookieless web advertising. — David J. Moore | CEO | BritePool Interoperability is paramount for brand marketers, agencies, publishers and platforms if we want to support an open and free Internet and break free of the stranglehold of walled gardens. Lotame Panorama ID’s participation in Switchboard reflects our steadfast commitment to collaborating across and within the industry and providing value to all of its players. — Pierre Diennet | Global Partnerships | Lotame At this pivotal moment in the industry, we are excited to be partnering with Tapad, a part of Experian on their cookieless initiative and making Retargetly IDx available into the Switchboard solution, providing global brands, platforms and publishers with a compliant, cookieless ID solution for the Latin American market; enabling them to target, reach and measure users at scale through the region. — Daniel Czaplinski | CEO and Co-Founder | Retargetly With Audigent’s Halo ID, we’re architecting a cookieless future where clients and partners have confidence in the actionability and interoperability of exclusive 1st party audiences, originated from some of the world’s leading publishers and creators. We see collaboration as being critical to a collective understanding of identity and Tapad, a part of Experian as a trusted partner with solutions such as Switchboard to support continuity for marketers’ addressability. — Drew Stein | CEO and Founder | Audigent Facilitating access and usage of 1st party identifiers is crucial to help marketers prepare for the cookieless future. Thanks to Switchboard, ID5’s cookie-less IDs will be available to a wider audience of brands and agencies and enable them to run effective, data-driven campaigns beyond the third-party cookie. — Mathieu Roche | CEO and Co-Founder | ID5 Addressing the current identity challenge requires transparency and collaboration. We are pleased to align ShareThis data with Tapad + Experian’s growing ecosystem. ShareThis data helps marketers evolve beyond the cookie to complete the picture. Tapad + Experian’s Switchboard offering will support ShareThis’s deep connections to clients and technology platforms, preserving and growing the accessibility of our data. — Michael Gorman | SVP Product and Business Development | ShareThis Get started with The Tapad Graph For personalized consultation on the value and benefits of The Tapad Graph for your business, email Sales@tapad.com today!

With the emergence of email addresses as a currency for brands to communicate with their consumers offline; attaching email data to in-store purchases lays the groundwork for future advertising strategies. However, this advantage in having an additional digital touchpoint also creates a new challenge for marketers. How do they connect what they know about their customers via offline data and PII, or personally identifiable information, with what they want to know about their online behaviors and interactions? Taken a step further, how can they create actionable strategies that connect these two streams of consumer insights in order to drive them to make more future purchases; and even become loyalists? At a time when the shift from traditional to online shopping feels more like a landslide; connecting online and offline data has never been more valuable or more urgent. The solution for these marketers lies in the framework of identity resolution; and a key capability called hashed email onboarding. Hashed email onboarding is a privacy-safe way to connect consumer email addresses to their related digital devices and other digital identifiers. The methodology prevents the consumers actual email address from being readable; while still providing marketers a connection between those emails and other touchpoints for an individual. Instead of understanding the customer journey in two distinct parts; how they interact with a brand or company offline and separately how they interact with a brand online; hashed email onboarding allows for the two parts to be woven together in a holistic view of that consumer. The power of connecting these data sets can be seen when combining offline and online attribution and measurement to improve frequency capping and look-alike modeling. It’s important to note that not all identity resolution vendors that onboard hashed emails function in the same way or provide the same level of data. Some connect only to desktop or only to mobile devices; while others don’t actually make direct linkages at all- they simply provide the hashed emails as a targetable digital audience for upload. While hashed email onboarding and the connection between offline and online data is a powerful strategy; it needs to be as structured as possible across the most data available to reveal truly efficient targeting and measurement strategies. Tapad, a part of Experian has built a hashed email product feature that works with the existing flexibility of The Tapad Graph to deliver the most holistic consumer view in the structure that works best for your business objectives. Get started with The Tapad Graph For personalized consultation on the value and benefits of The Tapad Graph for your business, email Sales@tapad.com today!