Passing Device ID:

Passing Device Id (GAID/IDFA) is highly recommended for mobile traffic .

For Android, we expect to receive GAID, While for IOS traffic you should pass IDFA ,

Here is a sample of how those should be passed

- IOS

http://www.offertoro.com/click_track/api?offer_id=419393&pub_id=14&pub_app_id=5&USER_ID=[USER_ID]&IDFA=[Your_IDFA]

- Android

http://www.offertoro.com/click_track/api?offer_id=419393&pub_id=14&pub_app_id=5&USER_ID=[USER_ID]&GAID=[Your_GAID]

Passing these parameters will benefit you as a publisher as it will allow us to provide you with more offers.