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Device Targeting With Platform-level Keys

Describes the common platform-level key-value pairs you can use to target users with device-related variables across all properties in your Audience Manager account.

Purpose of Platform-level Variables

Platform-level variables let you take data passed in from a particular site and make it available for targeting across all the properties in your Audience Manager account. These variables are formed by key-value pairs with the key prefixed by d_ as shown below.

Platform-level Keys Defined by User Agent

The Data Collection Servers extract the values for these keys from the user agent header in HTTP requests. The values represent device-level information from the Device Atlas database. The signals in the table below are available, as extracted from the user agent example. Download a list of the most common keys , according to Device Atlas measurements.
Signal
Type
Example
d_device_vendor
VENDOR
apple
d_device_hardware_type
HARDWARE
mobile phone
d_device_os_version
OS VERSION
5_0
d_device_os_name
OS NAME
ios
d_device_model
MODEL
iphone
d_device_marketing_name
MARKETING NAME
iphone
d_device_manufacturer
MANUFACTURER
apple
 Mozilla/5.0 (iPhone; CPU iPhone OS 5_0 like Mac OS X) AppleWebKit/534.46 (KHTML, like Gecko) Version/5.1 Mobile/9A334 Safari/7534.48.3

Even if one or more signals cannot be retrieved from the user agent header, the other signals will still be passed to the Data Collection Servers.