# [How the Agent Traffic Index is computed](https://rebilder.com/agent-traffic/methodology)

> The index groups observed website requests to show which agents are reaching participating businesses.

- **Description:** How the Agent Traffic Index groups participating sites and publishes aggregate traffic results.
- **Organization:** Rebilder

Results describe the participating sites and observation window. They are not estimates of all traffic across the web.



## Which sites contribute

**Independent businesses**

A site qualifies after recording at least 100 events in the 30-day window. Our own sites and sites that opt out are excluded.

**Merchant choice**

Opting out excludes a site’s data from the published calculations. Individual participating businesses are not named in the index.

## How results are grouped

**At least 25 independent sites**

Each published group contains at least 25 qualifying sites. Smaller groups are withheld.

**Balanced contributions**

A single site can contribute no more than 20% of a published group’s volume. Groups exceeding that limit are withheld.

**Monthly snapshots**

The publication method uses monthly snapshots, predefined categories, platform shares and distribution percentiles. These controls protect individual participating businesses.

## Reading the index

**Observation coverage**

The index currently shows the observation count. Aggregate shares will appear when publication is available and the qualifying groups meet the thresholds above.

## Related

- [The index](https://rebilder.com/agent-traffic)
- [Readability index methodology](https://rebilder.com/readable/methodology)
- [Privacy Policy](https://rebilder.com/legal/privacy)