Default Properties
Mixpanel's client SDKs automatically collect certain properties on every event. This document describes what those properties mean.
Web
Event Properties
| Raw Name | Display Name | Description |
|---|---|---|
| $city | City | The city of the event sender parsed from the IP property or the Latitude and Longitude properties. |
| $region | Region | The region (state or province) of the event sender parsed from the IP property or the Latitude and Longitude properties. |
| mp_country_code | Country | The country of the event sender parsed from the IP property or the Latitude and Longitude properties. |
| $browser | Browser | Name of the browser. |
| $browser_version | Browser Version | Version of the browser. |
| $device | Device | Name of the event sender’s device, if they’re on mobile web. |
| $device_id | Device ID | Autogenerated ID that is local to the device. Calling reset() resets this. |
| $user_id | User ID | The identified ID of the user. Calling identify() sets this. |
| $current_url | Current URL | The URL of the page on which the event was tracked. |
| $initial_referrer | Initial Referrer | Referring URL when the user first arrived on your site. Defaults to "$direct" if the user is not referred. |
| $initial_referring_domain | Initial Referring Domain | Referring domain at first arrival. Defaults to "$direct" if the user is not referred. |
| $os | Operating System | OS of the event sender. |
| mp_lib | Mixpanel Library | The Mixpanel library that sent the event. |
| $referrer | Referrer | Referring URL including your own domain. Might not be present if document.referrer does not return a value. As opposed to $initial_referrer and $initial_referring_domain, this property will be omitted if the user lands directly or the referring website adds the rel="noreferrer" parameter. |
| $referring_domain | Referring Domain | Referring domain including your own domain. Might not be present if document.referrer does not return a value. As opposed to $initial_referrer and $initial_referring_domain, this property will be omitted if the user lands directly or the referring website adds the rel="noreferrer" parameter. |
| $screen_height | Screen Height | The height of the device screen in pixels. |
| $screen_width | Screen Width | The width of the device screen in pixels. |
| $search_engine | Search Engine | The search engine that the customer used when they arrived at your domain. |
| mp_keyword | Search Keyword | Search keywords detected on the referrer from a search engine to your domain. This property is only collected when search keywords are included in a URL. |
| utm_source, utm_medium, etc. | UTM Parameters | UTM tags derived from the URL a customer clicked to arrive at your domain. Each utm will be collected under its own property. |
| mp_processing_time_ms | Processing Time | UTC timestamp of when the event was processed by our servers. |
| $mp_api_timestamp_ms | API Timestamp | Time at which the event was received by our API. |
| $insert_id | Insert ID | A unique identifier for the event, used to deduplicate events that are accidentally sent multiple times. |
User Properties
Do note that Mixpanel's default user properties are only updated when you send or update at least one property yourself. Please, refer to this article to understand how to send or update profile properties (opens in a new tab).
| Raw Name | Display Name | Description |
|---|---|---|
| $city | City | The city of the event sender parsed from the IP property or the Latitude and Longitude properties. |
| $region | Region | The region (state or province) of the event sender parsed from the IP property or the Latitude and Longitude properties. |
| mp_country_code | Country | The country of the event sender parsed from the IP property or the Latitude and Longitude properties. |
| $geo_source | Geo Source | This defines the method used to establish the location properties on that same entity. Location properties include Country, Region, and City. |
| $timezone | BrowserTimezone | Timezone of the event sender, parsed from IP. |
| $browser | Browser | Name of the browser. |
| $browser_version | Browser Version | Version of the browser. |
| $initial_referrer | Initial Referrer | Referring URL when the user first arrived on your site. Defaults to "$direct" if the user is not referred. |
| $initial_referring_domain | Initial Referring Domain | Referring domain at first arrival. Defaults to "$direct" if the user is not referred. |
| $os | Operating System | OS of the event sender. |
| $mp_api_timestamp_ms | API Timestamp | Time at which the event was received by our API. |
| $last_seen | Updated at | The last time a user profile property was set or updated (this should not be set manually). |
iOS
Event Properties
| Raw Name | Display Name | Description |
|---|---|---|
| $city | City | The city of the event sender parsed from the IP property or the Latitude and Longitude properties. |
| $region | Region | The region (state or province) of the event sender parsed from the IP property or the Latitude and Longitude properties. |
| mp_country_code | Country | The country of the event sender parsed from the IP property or the Latitude and Longitude properties. |
| $device_id | Device ID | Autogenerated ID that is local to the device. Calling reset() resets this. |
| $user_id | User ID | The identified ID of the user. Calling identify() sets this. |
| mp_lib | Mixpanel Library | The Mixpanel library that sent the event. |
| $app_build_number | App Build Number | General build of the app. |
| $app_version_string | App Version | Current app version. |
| $carrier | Carrier | Wireless carrier of the device owner. |
| $ios_version | iOS Version | Current version of iOS on the device. |
| $lib_version | Lib Version | Mixpanel library version. |
| mp_lib | Mixpanel Library | Mixpanel Library that sent the event. |
| $model | Model | Device model ID, in format "iPad 3,4". |
| $os | Operating System | OS of the event sender. |
| $radio | Radio | Current https://www.objc.io/issues/5-ios7/iOS7-hidden-gems-and-workarounds/#know-your-radio (opens in a new tab) (3G, 4G, LTE, etc.). |
| $screen_height | Screen Height | Height, in points, of the device screen. |
| $screen_width | Screen Width | Width, in points, of the device screen. |
| $wifi | Wifi | Set to true if the user’s device has an active, available Wifi connection, false if not. |
| mp_processing_time_ms | Processing Time | UTC timestamp of when the event was processed by our servers. |
| $mp_api_timestamp_ms | API Timestamp | Time at which the event was received by our API. |
| $insert_id | Insert ID | A unique identifier for the event, used to deduplicate events that are accidentally sent multiple times. |
User Properties
Do note that Mixpanel's default user properties are only updated when you send or update at least one property yourself. Please, refer to this article to understand how to send or update profile properties (opens in a new tab).
| Raw Name | Display Name | Description |
|---|---|---|
| $city | City | The city of the event sender parsed from the IP property or the Latitude and Longitude properties. |
| $region | Region | The region (state or province) of the event sender parsed from the IP property or the Latitude and Longitude properties. |
| mp_country_code | Country | The country of the event sender parsed from the IP property or the Latitude and Longitude properties. |
| $geo_source | Geo Source | This defines the method used to establish the location properties on that same entity. Location properties include Country, Region, and City. |
| $timezone | BrowserTimezone | Timezone of the event sender, parsed from IP. |
| $os | Operating System | OS of the event sender. |
| $mp_api_timestamp_ms | API Timestamp | Time at which the event was received by our API. |
| $ios_app_release | iOS App Release | General build of this app |
| $ios_app_version | iOS App Version | Full detail of this app build. |
| $ios_device_model | iOS Device Model | Device model ID, in format "iPad 3,4" |
| $last_seen | Updated at | The last time a user profile property was set or updated (this cannot be set manually). |
| Total App Sessions | Total App Sessions | The total number of “App Session” events that the user has sent. |
| Total App Session Length | Total App Session Length | The total number of seconds that a user has spent using the app. This is calculated by adding the "Duration" property attached to the "App Session" event. |
| First App Open Date | First App Open Date | The date the app was first opened on a user’s device. |
Android
Event Properties
| Raw Name | Display Name | Description |
|---|---|---|
| $city | City | The city of the event sender parsed from the IP property or the Latitude and Longitude properties. |
| $region | Region | The region (state or province) of the event sender parsed from the IP property or the Latitude and Longitude properties. |
| mp_country_code | Country | The country of the event sender parsed from the IP property or the Latitude and Longitude properties. |
| $device_id | Device ID | Autogenerated ID that is local to the device. Calling reset() resets this. |
| $user_id | User ID | The identified ID of the user. Calling identify() sets this. |
| mp_lib | Mixpanel Library | The Mixpanel library that sent the event. |
| $app_build_number | App Build Number | General build of this app. |
| $app_version_string | App Version | Current app version. |
| $bluetooth_enabled | Bluetooth | True if bluetooth is enabled. |
| $bluetooth_version | Bluetooth Version | "none", "ble", or "classic". |
| $brand | Brand | Device brand. |
| $carrier | Carrier | Wireless carrier of the device owner. |
| $google_play_services | Google Play Services | True if Google Play Services is installed and enabled on the device. |
| $has_nfc | Has NFC | True if device has NFC functionality. |
| $has_telephone | Has Telephone | True if device has telephone functionality. |
| $ios_version | iOS Version | Current version of iOS on the device. |
| $lib_version | Lib Version | Mixpanel library version. |
| mp_lib | Mixpanel Library | Mixpanel Library that sent the event. |
| $manufacturer | Manufacturer | Device manufacturer. |
| $model | Model | Device model ID, in format "iPad 3,4". |
| $os | Operating System | OS of the event sender. |
| $radio | Radio | Current https://www.objc.io/issues/5-ios7/iOS7-hidden-gems-and-workarounds/#know-your-radio (opens in a new tab) (3G, 4G, LTE, etc.). |
| $screen_dpi | Screen DPI | Pixel density of the screen. |
| $screen_height | Screen Height | Height, in pixels, of the device screen. |
| $screen_width | Screen Width | Width, in pixels, of the device screen. |
| $wifi | Wifi | Set to true if user’s device has an active, available Wifi connection, false if not. |
| mp_processing_time_ms | Processing Time | UTC timestamp of when the event was processed by our servers. |
| $mp_api_timestamp_ms | API Timestamp | Time at which the event was received by our API. |
| $insert_id | Insert ID | A unique identifier for the event, used to deduplicate events that are accidentally sent multiple times. |
User Properties
Do note that Mixpanel's default user properties are only updated when you send or update at least one property yourself. Please, refer to this article to understand how to send or update profile properties (opens in a new tab).
| Raw Name | Display Name | Description |
|---|---|---|
| $city | City | The city of the event sender parsed from the IP property or the Latitude and Longitude properties. |
| $region | Region | The region (state or province) of the event sender parsed from the IP property or the Latitude and Longitude properties. |
| mp_country_code | Country | The country of the event sender parsed from the IP property or the Latitude and Longitude properties. |
| $geo_source | Geo Source | This defines the method used to establish the location properties on that same entity. Location properties include Country, Region, and City. |
| $timezone | BrowserTimezone | Timezone of the event sender, parsed from IP. |
| $android_app_version_code | Android App Version Code | Current app version. |
| $android_app_version | Android App Version | Current app version. |
| $android_lib_version | Android Lib Version | Version of Mixpanel library. |
| $android_os_version | Android OS Version | Current Android version for this device. |
| $android_brand | Android Brand | Device brand. |
| $android_model | Android Model | Device model. |
| $android_manufacturer | Android Manufacturer | Device model. |
| $last_seen | Updated at | The last time a user profile property was set or updated (this cannot be set manually). |