Karolina BendrykA retail media platform is a technology stack built on a retailer's first-party shopper data — combining an ad server, an auction layer, and a data integration layer that connects purchase history directly to ad targeting and measurement.
This ability to turn transaction data into high-margin ad revenue has transformed retail media from a niche to a fast-growing market. By 2028, retail media is forecast to account for around one-quarter (24.4%) of all US digital ad spending, while Statista projects that ad spend will reach $69.3 billion in 2026 (up from $58 billion in 2025).
A retail media network introduces unique data requirements and operational layers that set it apart from traditional publishers. This article explores the retail media network definition, the technical infrastructure required to launch your platform, and key deployment steps.
Retail media ad spending in the U.S. 2024-2029. Source: Statista
TL;DR
Retail media is no longer just for e-commerce. Physical retailers can now leverage digital screens to monetize in-store foot traffic just like digital traffic.
A retail media network infrastructure consists of several technical components. Beyond the ad server, it includes first-party e-commerce data and attribution layers — two key elements that make retail media so effective for advertising.
Retail media offers both on-site and off-site monetization. One relies on direct monetization of ad inventory, while the other focuses on using your first-party data.
White-label tech is the shortest way to launch owned retail media network infrastructure. It hands you a ready-made platform, so you don't have to build and maintain the tech stack yourself.
TeqBlaze offers scalable technology along with technical and business support. We provide dedicated Client Success and Tech Support managers and help you hire an internal AdOps team.
What is a retail media network?
It is important to draw a line between retail media as a business model and as technical infrastructure.
From a business model perspective, a retail media network definition comes down to monetizing native traffic by placing ads in front of shoppers right when they are making a purchase. While retailers have long offered brand advertising, modern retail media emerged in e-commerce, when retail giants like Amazon and Walmart (two of the most popular retail media network examples) allowed third-party brands to run ads across their websites and apps. Physical retailers are following the same playbook with Digital Out-of-Home (DOOH) advertising. By placing digital screens across store floors, they can monetize physical foot traffic as well as digital traffic. That said, running campaigns on DOOH screens has its own operational specifics.
From a technical perspective, a retail media network technology stack is an infrastructure that powers this entire process to keep it running fast, reliably, and at scale. It includes an ad server and a programmatic auction engine needed to trade ad inventory. A retail media ad tech stack also includes targeting mechanisms and sales attribution frameworks.
To understand how retail media networks work, it is necessary to break down their core components.
What is a retail media platform: Core technology components
Traditional publishers use an SSP to sell ad space at the highest price, which can route bid requests to ad exchanges. Buyers rely on a DSP to find and purchase that inventory.
A modern retail media network functions as a hybrid. As it sells inventory for a specific retailer, it certainly acts as an SSP. And like a DSP, it offers multiple targeting options for buyers. On top of that, it offers unique value: its own e-commerce first-party data. A retail media platform can use it to match ads with the most relevant users.
This distinction directly shapes the retail media network's technical requirements. There are five key components that define how retail media networks work:
First-party data layer: Captures users' shopping history and transforms it into audience segments. Each segment receives a unique, anonymized ID, which bid requests use to trigger the auction. This makes data activation possible without compromising user privacy.
Ad server: Processes ad requests and triggers the auction engine. This engine ranks bids and selects the winner. Bids are typically ranked by price, product relevance, and stock availability. This helps increase conversion rates by placing ads the user is more likely to engage with, while also protecting the user experience. Once the auction determines the winning bid, it returns the winning creative to be rendered.
Compliance layer: Manages data activation and ad delivery in accordance with local privacy regulations.
Attribution layer: Matches ad interactions directly to transaction logs to attribute closed-loop conversions and campaign sales.
Self-serve interface: Allows brands to set up campaigns and targeting, allocate budgets, and view reports. Together with the attribution layer, it's a defining part of what a retail media platform is expected to deliver from a buyer's perspective.
How a retail media network works
On-site vs Off-site retail media
Retail media networks generally operate across two main models. Most retailers start with on-site placements. They add off-site campaigns once their first-party data and attribution are mature enough to support them.
On-site retail media: Running ads right inside the retailer's online store, app, or offline screens. The goal is to capture shoppers' attention when they already are interested or ready to buy. As a result, it delivers the highest conversion rates for brands, while maximizing revenue for a retailer.
Off-site retail media: Using the retailer's shopper data to target those same shoppers anywhere else on the web. This serves two goals: retargeting buyers to drive repeat purchases and increasing brand awareness and, by extension, trust. For retailers, this is an opportunity to monetize their audience data beyond their own platforms.
Each model puts the load on a different part of the stack. On-site retail media relies on the retailer's own ad server and auction engine. They decide which sponsored product or banner to show in a given context, such as a search query, a category page, or the cart.
Off-site retail media depends more on the data layer: audience segments have to be packaged and passed to DSPs through secure integrations such as data clean rooms. In both cases, ad exposures match the retailer's transaction logs, so closed-loop attribution works wherever the ad was shown.
What it takes to build a retail media ad tech stack
A retail media technology stack cannot be launched overnight — it is a step-by-step process that requires established traffic volumes and the right underlying retail media network architecture. An ad server is its core foundation. It must process multiple auctions while maintaining low latency, even during traffic spikes.
To ensure every auction delivers relevant impressions, servers must be integrated with CRM systems and databases containing shopping history and audience segments. These integrations play a critical role at auction start and afterward.
First, the auction engine leverages this data to evaluate real-time context and instantaneously serve ads tailored to a specific shopper. After that, the system matches ad interactions directly against transaction data to verify whether the placement resulted in an actual purchase.
This creates a closed-loop attribution cycle. Its primary value is showing brands sales outcomes tied to their spend, which is measurable in a way most media isn't, especially when reported under the IAB/MRC Retail Media Measurement Guidelines.
To meet these retail media network requirements, you have two key options: build a platform or buy a white-label solution.
What is the best way to launch a self-serve retail media network?
The choice here depends entirely on your business needs.
Building a retail media network from scratch pays off if your business requires unique auction rules or non-standard integrations. You can build it in-house or outsource it to third-party developers. In both cases, you own the codebase and the roadmap. However, server maintenance, tech support, and keeping the stack compliant with shifting standards like IAB Tech Lab specs remain your constant responsibility.
Buying a white-label platform is also a form of outsourcing. The difference is that instead of building a retail media network yourself, you buy a ready-made platform that you can manage entirely on your terms. This slashes your launch timeline to a few weeks, depending on integration complexity and the vendor's capacity. Certain providers offer additional services. For example, TeqBlaze offers platform customization, dedicated technical support, and assistance with recruiting and training AdOps professionals.
Final thoughts
A retail media network technology stack is not just standalone software you can buy and launch whenever you want. It is a complex architecture built on top of your existing e-commerce infrastructure that relies on structured first-party data and closed-loop attribution.
That is why launching a self-serve retail media network with a ready-made white-label solution is significantly easier, as long as you don't have unique requirements that demand custom development. You get a fully functional, modern solution that supports key compliance and transparency frameworks. Moreover, white-label vendors typically have deep adtech expertise because it is their main focus. By contrast, for outsourced software development agencies, adtech is often just one of many project areas. This dedicated experience provides a deeper understanding of how to build a retail media network and, specifically, your retail media network requirements.
If you are looking for such a reliable partner to guide your execution, let's talk. We will help you launch your retail media technology quickly and efficiently.
FAQ
What is a retail media network and how does it work?
A retail media network is a business model and a tech stack that sells ad space within a specific retailer's ecosystem. It works by letting brands bid for placements on the retailer's site, app, stores, and partner channels, targeting them with the retailer's shopper data and measuring results against actual sales.
What are examples of retail media networks?
Most leading retailers run their own retail media networks, including Amazon, Walmart, Target, eBay, and Best Buy.
What technology is needed to build a retail media platform?
You need several core components for it. The most critical ones include ad servers integrated with the compliance layer and internal systems like CRMs, transaction logs, and audience databases.
What's the difference between on-site and off-site retail media?
On-site retail media displays ads directly within the retailer's ad inventory. Off-site retail media uses the retailer's first-party data to target those same shoppers across external web sources.
Why is closed-loop attribution important for retail media?
It helps buyers track ROI, providing clarity on conversions. This increases inventory value, allowing retailers to maximize their prices per impression and attract exclusive brand partnerships.
Should a retailer build an in-house retail media network or use white-label ad exchange technology?
It depends on business needs. White-label retail media technology reduces initial investment and speeds up market entry, making it an ideal option for most cases. Building an in-house retail media network from scratch is best for specific situations that require a unique retail media network architecture.
How to build a retail media network yourself?
There are two paths: hire an in-house dev team and manage the development process directly, or to outsource the process to a third party. In the latter case, you don't need to assemble a team (the vendor handles that for you), but you still have to take part in the development process. If you want to build an in-house retail media network to achieve stack ownership, white-label can do that too, removing the development burden entirely.
