# Tracking and attribution
URL: https://docs.awellhealth.com/docs/embed-and-host/tracking

> For the complete documentation index, see [llms.txt](https://docs.awellhealth.com/llms.txt).



Hosted Pages supports **UTM parameters** and **custom tracking data**, so a session can be attributed to
a campaign, a partner, or a traffic source. Tracking data is captured when the session is created, and
queried from BigQuery later.

## Attribution shows which channel produces patients who finish [#attribution-shows-which-channel-produces-patients-who-finish]

Without it, a self-enrollment flow reports how many people started and nothing about where they came
from.

## Parameters are captured at session creation [#parameters-are-captured-at-session-creation]

Append parameters to the Hosted Pages URL. Awell captures them when the session is created.

### Standard UTM parameters [#standard-utm-parameters]

Hosted Pages accepts `utm_source`, `utm_medium`, `utm_campaign`, `utm_term` and `utm_content`.

```
https://{your-domain}/{link}?utm_source=newsletter&utm_medium=email&utm_campaign=spring-intake
```

### Custom tracking parameters [#custom-tracking-parameters]

Where UTM doesn't fit, pass custom parameters, for example a partner or referrer identifier that means
something inside the organization.

## Tracking data joins the rest of the care flow data in BigQuery [#tracking-data-joins-the-rest-of-the-care-flow-data-in-bigquery]

Tracking data lands in the same BigQuery dataset as session data. See
[Data & source control](/docs/data).

Agree the `utm_source` values before launch; a dataset holding `email`, `Email` and `e-mail` has to be
cleaned before it can be used.

## Next steps [#next-steps]

* [Sessions and links](/docs/embed-and-host/sessions-and-links) for how a session is created.
* [Data & source control](/docs/data) for getting the data out.