Shelf price and unit price, on the basis the page itself states.

Promotion type, not just whether one exists: loyalty price, price match, multibuy, temporary reduction, was/now — and the end date wherever shown.

Availability, reported only where the page explicitly says so.

Search position: organic position excluding sponsored results, position as a shopper actually sees it, and how many paid placements sit above you. We record the search term, the sort order in use, and whether a postcode was set.

Review count and the change since the previous reading. This is an indicator of relative activity, not sales data, and we never present it as sales.

Category movement: products in category, share on promotion, new entrants, delistings, average unit price.