• http://www.ericward.com/lmp Eric Ward

    Ok pardon my ignorance, but how does it know if I have a 27 inch monitor configured portrait versus a 15 inch laptop monitor? The number of “viewable” ads is quite different on those two configurations, and while i know an http request results in the server knowing my operating system, mobile/not mobile, browser and a number of other things, i’m not aware of any way they can know which monitor I’m using. Am I wrong?

  • Jonathan Schikowski

    Eric, do a search for “viewable impression” on Wikipedia, the entry explains it well (see “Architecture Example”). Hope this helps!