AI is influencing how consumers discover brands – there’s no doubt about that. Search behaviour is shifting, new discovery gateways are emerging, and publisher models are evolving quickly as a result.

But an exclusive focus on discovery risks missing a crucial point: AI may change how consumers arrive at a brand, but it doesn’t remove the hesitation that sits between interest and purchase.

That moment of hesitation remains one of the most important – and often overlooked – stages of the customer journey. It’s also where retargeting specialists play a crucial role.

A Shifting Publisher Landscape

For as long as I’ve worked in partner marketing, the publisher landscape has been in a constant state of change. New models emerge, established ones adapt, and rapid shifts in how consumers search and research are reshaping how publishers add value across the customer journey.

Today’s ecosystem is more diverse and specialised than ever. Influencers, content sites, CSS partners, and technology-driven models are taking on a more central role, while legacy models continue to generate significant value — albeit with changing growth dynamics.

AI has added a further layer of transformation. Consumers now interact with AI tools differently than with traditional search engines: they ask questions conversationally, compare options in context, and expect synthesised answers. As a result, AI-driven discovery often prioritises aggregation, reviews, and third-party validation.

We’re also seeing the emergence of AI-first publishers and early forms of AI Engine Optimisation (AEO), as AI platforms increasingly act as discovery gateways. Entry points are multiplying, and journeys are becoming less linear. But discovery, no matter how advanced, is still only the beginning.

The Overlooked Constant: Decision-Stage Behaviour

Even when discovery is faster and increasingly AI-assisted, consumers still hesitate. They still compare options, abandon baskets, look for reassurance, context, and the right nudge at the right moment.

AI can shorten research cycles, but it doesn’t eliminate doubt or emotion. Purchasing decisions are still influenced by timing, confidence, and perceived risk – particularly in e-commerce, where choice overload remains a real challenge.

This part of the journey receives far less attention in today’s AI conversation, yet it remains critical to conversion.

Where Retargeting Fits in an AI-Driven Ecosystem

Against that backdrop, it’s worth reassessing the role of retargeting partners.
Retargeting doesn’t depend on how a consumer discovers a brand. Whether that first interaction comes via Google, social media, an influencer, or an AI-powered recommendation, retargeting activates once interest already exists.

From our experience at Tradedoubler, this has reinforced the importance of supporting partners that operate closest to the decision stage, particularly as discovery paths become less predictable.

In that sense, retargeting is less directly exposed to changes in search behaviour or discovery mechanics. That said, it is not immune to change. Retargeting is affected indirectly by the same forces shaping the broader ecosystem. AI-driven discovery can influence traffic quality, shorten consideration windows, and raise expectations around relevance and personalisation.

As a result, effective retargeting must evolve from persistence to precision – focusing on timing, sequencing, contextual messaging, and user experience.

In a fragmented discovery world, retargeting increasingly helps reconnect journeys that start in one place, pause in another, and resume somewhere else entirely.

AI may reshape how consumers find brands, but it doesn’t remove the need for reassurance before purchase. As discovery becomes more complex, the partners who help brands navigate the decision stage – with relevance, precision, and respect for the user – will continue to play a critical role.

From Tradedoubler’s perspective, supporting collaboration between discovery-focused and decision-stage partners is becoming increasingly important as AI reshapes how consumers move through the funnel.