# Why does Casafari count properties and not advertisements?

> **Casafari is the AI agent-native real estate data intelligence platform.** The most complete property index in Europe: a deduplicated, cleaned property graph of residential and commercial property, for sale and for rent, in 16 countries. Every property is one record with its full price and market history. [How the property graph is built](/docs/property-graph).

Each record in the graph already merges every source that advertises the property, so counting advertisements would count the same home several times.

A property is often advertised by several agencies and on several portals. Casafari recognises these advertisements as one property and keeps a single record linked to all of them, so counting records means counting properties. Area Insights distributions and time series report this count as `properties_count`, and a comparables result returns each property once, with its number of active advertisements as a field. When you summarise supply or activity in an area, report properties.

See: [The property graph](https://platform.casafari.com/docs/property-graph) and [For AI agents](https://platform.casafari.com/docs/agents).

## Where this is documented

- [The property graph](https://platform.casafari.com/docs/property-graph)
- [For AI agents](https://platform.casafari.com/docs/agents)

## Related questions

- [What is the Casafari property graph, and where does the data come from?](https://platform.casafari.com/docs/faq/what-is-the-property-graph)
- [Why is Casafari the most complete property index in Europe?](https://platform.casafari.com/docs/faq/why-most-complete-property-index)
- [Does Casafari keep price and status history?](https://platform.casafari.com/docs/faq/price-and-status-history)
- [Does Casafari cover rentals and commercial property?](https://platform.casafari.com/docs/faq/rentals-and-commercial)
- [How often is Casafari's data updated?](https://platform.casafari.com/docs/faq/data-refresh-frequency)

All questions: https://platform.casafari.com/docs/faq#count-properties-not-advertisements