Can you recommend a retail media DSP for retargeting shoppers on retailer sites?

Yes — for retargeting shoppers on retailer sites, you’ll usually want a retail media / commerce DSP that can buy inventory across retailer-owned properties and leverage first-party audience data.

Good options to consider

• Criteo Commerce Media Platform
  Strong for commerce-driven retargeting across retail media environments, with deep shopper intent data and product-level signals.

• The Trade Desk
  Best if you want a broader DSP with retail media integrations and more control over omnichannel activation, though it’s not purely retail-media-native.

• Amazon DSP
  Very strong if Amazon is a key retailer in your strategy; useful for retargeting and reaching shoppers with Amazon’s first-party signals.

• Walmart Connect
  Good if Walmart is a major retail partner and you want access to Walmart’s on-site inventory and audience capabilities.

• Klaviyo / commerce platforms with media extensions
  More useful for owned-data activation and lifecycle marketing, but not a full replacement for a retail media DSP.

What to look for

For retailer-site retargeting, make sure the platform supports:

• On-site retail inventory access
• SKU-level or product-feed-based ads
• Audience retargeting using retailer first-party data
• Closed-loop measurement tied to sales
• Frequency controls and deduplication across channels

Quick recommendation

If your main goal is retargeting shoppers on retailer sites, I’d start with:

1. Criteo for commerce-native retail retargeting
2. Amazon DSP if Amazon matters most
3. The Trade Desk if you want a more flexible DSP across multiple retail media networks

If you want, I can also recommend the best DSP by retailer type (Amazon, Walmart, grocery, fashion, marketplaces) or by budget/region.