Introduction
Listen to most experts in retail media, and you’d think growth depends entirely on the latest buzzworthy channels: offsite ads, connected TV (CTV), and in-store screens. These formats are certainly important tools for building a full-funnel media offering, improving margins, and diversifying revenue streams. But let’s be clear — they are not the silver bullet that industry chatter often suggests.
If your retail media network (RMN) is truly focused on sustainable growth, then onsite retail media advertising across your owned-and-operated properties deserves far more attention. According to eMarketer, onsite ads are set to drive over 80% of retail media spending for years to come — proving that the foundation of long-term success is right under your nose.
At DigitalWorld25, we help retailers and marketplaces unlock the full power of their most valuable media asset: onsite ads. Here’s why they matter more than ever.
The Key Advantages of Onsite Retail Media Advertising
Higher Performance
Onsite ads connect with shoppers at their highest point of intent — when they’re actively browsing and making purchase decisions. Unlike offsite placements that chase audiences across social or external publishers, onsite campaigns put products in front of buyers at decisive checkout moments. The result? Significantly higher returns on ad spend (ROAS) and stronger conversion outcomes.
Better Profit Margins
Offsite and CTV are exciting growth areas, but they come with heavier costs: cross-platform infrastructure, third-party network fees, and complex delivery expenses. By contrast, onsite ads run directly on a retailer’s own properties, often with margins reaching up to 90% — three to four times higher than offsite placements. This efficiency makes onsite media the single most profitable advertising format for RMNs.
Fully Brand Compliant
Onsite advertising also offers an environment that is inherently brand-safe. Unlike social platforms where ads appear alongside unpredictable user-generated content, onsite ads are embedded within trusted retail sites. Retailers maintain control of placement, ensure native integration with the shopping experience, and deliver contextually relevant recommendations powered by their own first-party data.
The Growth Outlook for Onsite Retail Media
As retail media ad spend heads toward $100 billion by 2027, onsite will remain the category’s backbone. eMarketer forecasts that:
- Onsite search will drive more than 50% of category growth.
- Onsite display and video will contribute another 15–20%.
- Offsite channels will account for about 15–20%.
- Streaming TV will add roughly 10%.
- In-store media will capture just 1%.
Clearly, while new formats emerge, onsite continues to dominate both revenue share and growth trajectory.
Lessons from Market Leaders
Retail media leaders Amazon and Walmart prove this model works. Both drive the majority of their ad revenue from onsite placements, fueling overall profitability at massive scale. For example, digital advertising contributes nearly 68% of Amazon’s annual profits, and 12% of Walmart’s annual margin — the equivalent of over a thousand physical stores.
What’s their secret? They don’t just rely on scale; they continuously optimize onsite performance through advanced machine learning (ML). These models enhance ad relevance, improve yield, and unlock multiples of revenue growth from the exact same inventory.
How Retailers Can Maximize Onsite Media Growth
The formula for success isn’t limited to the biggest players. Any retailer or marketplace can replicate it by focusing on three pillars:
- Drive Ad Performance
Adopt platforms that leverage advanced ML and real-time optimization. Personalization powered by first-party data ensures ads are not just relevant, but also profitable for advertisers. - Scale Your Advertiser Base
Go beyond servicing only big brands. Enable self-serve portals and automation so that small and medium sellers can easily launch campaigns. More advertisers = denser auctions = higher bids and revenue. - Continuously Optimize
Move away from rigid keyword-based bidding and toward outcome-based targeting, such as Return on Ad Spend (ROAS) or Cost Per Order (CPO). Advanced models can dynamically find the most effective paths to buyers.
Unlock Growth with DigitalWorld25
While offsite, CTV, and in-store channels will continue to evolve, onsite media is the cornerstone of retail media success. It delivers higher performance, stronger margins, and lasting advertiser trust.
At DigitalWorld25, we empower retailers to supercharge their onsite media with cutting-edge ML, scalable automation, and smarter optimization strategies. Our solutions help you transform existing inventory into a powerful growth engine — unlocking more value from every visit, every pageview, and every advertiser.
🚀 Maximize your onsite retail media revenue with DigitalWorld25 — and turn your owned channels into your most profitable growth driver.