ViewWho is an initiative started by Ad Dynamo, the contextual advertising marketplace.

Dealing with fraud whilst protecting a users’ privacy is a big challenge of Ad Dynamo’s and as a result we kicked this project off.  Over time, we will contribute a high percentage of the source code that will be freely available under standard Open Source Licensing policies – ViewWho is available under the Open Source Simple 2.0 License.

ViewWho aims to offer a reliable and robust device fingerprinting technology that is as accurate as browser-based cookies whilst adhering to common privacy policies beginning to come into effect, particularly in the EU.