How marketplace and offer ranking works

• Unique views increase ranking weight.
• Unique outbound clicks have a higher weight than views.
• Older engagement gradually loses weight over time.
• Paid/featured placement can add ranking weight and is disclosed as such.
• A small exploration component occasionally gives newer or less-seen items exposure.
• The ranking does not use sensitive personal attributes.

Clicks and demonstrated engagement generally carry more weight than a simple view. Recent engagement is more important than old engagement. Featured placement can add an explicit commercial boost, while a smaller exploration factor occasionally gives new or less-seen items an opportunity to appear. Availability and moderation status can exclude an item from ranking entirely.