Individual mobile applications typically send a unique user agent string that is not known to any public repository, or they might not send a user agent at all. As a result, user agent detection for mobile native applications cannot rely on WURFL, Browscap, or other public standard.

To enable tracking of user agent-related information, the Tealeaf client frameworks for mobile native applications submit this header information:

HTTP_X_TEALEAF=device (Android) Lib/0.0.10

HTTP_X_TEALEAF=device (iOS) Lib/8.5.4.1

The header is also used by the CX UI Capture for AJAX solution. However, user agent detection for UI Capture is sourced from the client used in the session.

When the Reference session agent detects the HTTP_X_TEALEAF header and either the (android) or (ios) value, it does these tasks:

• The Reference session agent overwrites the request variable for traffic type:

  
  TLT_TRAFFIC_TYPE=MOBILE_APP
  

  This value is eventually surfaced as the value MOBILE_APP in the Traffic Type dimension.

• The Reference session agent overwrites the request variable for browser platform:
  • Android:

    
    TLT_BROWSER_PLATFORM=Android
    

  • iOS:

    
    TLT_BROWSER_PLATFORM=iOS
    

• The Reference session agent looks for the HTTP_X_TEALEAF_PROPERTY header, which is submitted from the client frameworks with extended user agent information. For example:

  
  HTTP_X_TEALEAF_PROPERTY=TLT_BROWSER=StraussAndPlesser Native;
  TLT_BROWSER_VERSION=8.5; TLT_BROWSER_PLATFORM=Android;
  TLT_BRAND=Asus; TLT_MODEL=Asus Eee Pad Transformer TF101;
  TLT_SCREEN_HEIGHT=800; TLT_SCREEN_WIDTH=1280;
  TLT_COLOR_DEPTH=65536
  

• These values are used to populate the [ExtendedUserAgent] section. For example:

  
  [ExtendedUserAgent]
  TLT_BROWSER=StraussAndPlesser Native
  TLT_BROWSER_VERSION=8.5
  TLT_BROWSER_PLATFORM=Android
  TLT_BRAND=Asus
  TLT_MODEL=Asus Eee Pad Transformer TF101
  TLT_SCREEN_HEIGHT=800
  TLT_SCREEN_WIDTH=1280
  TLT_COLOR_DEPTH=65536
  

These [ExtendedUserAgent] fields are not populated with data from the mobile native applications, as the fields are applicable to browsers only:

TLT_BROWSER_JAVASCRIPT
TLT_BROWSER_COOKIES
TLT_PICTURE_SUPPORT
TLT_VIDEO_SUPPORT
TLT_STREAMING_SUPPORT

Some of the variables can be inserted with false values if the request itself includes a user agent. After these fields were inserted into the [ExtendedUserAgent] section, the fields and properties of HTTP_X_TEALEAF_PROPERTY are applied.