# Tracking parameter

A value added to a request or link to carry measurement context.

A value added to a request or link to carry measurement context.

## An example

A campaign link includes a source parameter so a report can identify the referring channel.

## Why it matters

Do not put personal information or secrets in URLs; parameters can appear in logs and referrers.


## Related terms
- [Analytics](https://jolts.xyz/resources/glossary/analytics)
- [Attribution](https://jolts.xyz/resources/glossary/attribution)
- [Conversion tracking](https://jolts.xyz/resources/glossary/conversion-tracking)
- [Raw data](https://jolts.xyz/resources/glossary/raw-data)

## Next step

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