What is the Criteo OneTag?
Criteo OneTag allows us to collect data based on each person’s journey around your website. When someone interacts with your website (for example, browsing a product page, adding items to a cart, searching for products, and more), the Criteo OneTag picks up this action.
This information is used to display personalized product recommendations for both your existing audiences and new ones, depending on your ad campaign objectives.
The more actions that the Criteo OneTag collects, the better your campaigns become at delivering ads to the people most likely to engage with your site.