--- title: Referrer slug: '1344' canonical_url: https://docs.coveo.com/en/1344/ collection: glossary source_format: adoc --- # Referrer {doctitle} is a Search API [query](https://docs.coveo.com/en/231/) parameter whose value is the URL of the page that linked to the [search interface](https://docs.coveo.com/en/2741/) from which the query originates. When the `referrer` is specified in a query, the [origin level 3](https://docs.coveo.com/en/1339/) field of the corresponding search [event](https://docs.coveo.com/en/260/) is typically populated with identical data.