Usually the product page
Shopping sends traffic there anyway, buyers expect it, and it carries the trust signals — reviews, policies, stock — a stripped landing page lacks.
When a dedicated page earns its place
- A bundle or offer that does not exist as a product.
- A category search where no single product answers the query well.
- A high-ticket item that needs explanation before the buy button.
The trap
Building landing pages that lack shipping information, returns terms and real photography. Those are not conversion assets, they are policy risks.