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How Does Ad Serving Work?

Interactive ads are everywhere these days, but when it comes to the technical process of getting an ad on the page and how publishers and marketers verify it delivered, not many people outside ad operations can explain what actually happens in detail.  Read this article though and you’ll be one of them!  Below I’ve detailed step-by-step how a browser gets from the initial call to a publisher’s website to the final ad creative, and when and how each party counts an impression.  You can view a diagram of the ad serving process at the bottom of this post – the numbers in the text refer to the steps labeled in the diagram.

So, without further ado – (more…)