> For the complete documentation index, see [llms.txt](https://docs.ngsurvey.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.ngsurvey.com/fr/form-management/security/security-items/referer.md).

# Referer

Le referer vérifiera que le Répondant provient d'un lien http spécifique. Si vous avez inséré le [lien web](/fr/form-management/publish-deploy/web.md) dans la page de votre site, vous pouvez appliquer et vérifier que les Répondants proviennent de cette page via ce lien et non en utilisant le lien directement ou depuis un autre endroit.

## 🔅 Propriétés du referer

* **`Referer`** URL de la page du site hébergeant votre [survey link](/fr/form-management/publish-deploy/web.md). L'URL doit être exactement la même que celle visible dans la barre de navigation du navigateur lorsque vous êtes sur la page hébergeant le lien du sondage.


---

# Agent Instructions
This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com.

## Querying This Documentation
If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter, and the optional `goal` query parameter:

```
GET https://docs.ngsurvey.com/fr/form-management/security/security-items/referer.md?ask=<question>&goal=<endgoal>
```

`ask` is the immediate question: it should be specific, self-contained, and written in natural language.
`goal` is optional and describes the broader end goal you are ultimately trying to accomplish on behalf of the user. GitBook uses it to tailor the answer towards what is most useful for that goal.

The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.
