---
title: "Browser context object"
slug: "browser-context-object"
abstract: "Describes the browser context object in a Discover Search and Recommendation request."
---
# Browser context object

The following table describes the keys in the `browser` `context` object:

| Key | Type | Description | Value |
| --- | --- | --- | --- |
| user_agent | string | The browser user agent.NoteFollow industry conventions so that Discover can automatically detect the device and app_type. | n/a |
| device | string | The device that the user is on.Computed automatically from user_agent. | pctabletmobile |
| app_type | string | Discover automatically gets this value from user_agent. | browser - user_agent starts with Mozilla and doesn’t contain one of the webview keywords listed see below.webview - user_agent starts with Mozilla and contains WebViewApp or wv.native - user_agent does not start with Mozilla. |