Programmatic Advertising (Digital Buying Mechanics)
Automated software auctions that buy and serve ads across the open web in 100 milliseconds
Instead of calling or emailing website owners to buy banner ads, software computers automatically bid against each other in 0.1 seconds to show your ad to the right person loading any website.
Why It Is Critical
Programmatic is the infrastructure layer underneath all digital advertising outside Google Search and Meta. It powers open-web display, in-app gaming banners, podcast audio ads, and Connected TV (CTV) streaming.
How It Works & Underlying Dynamics
A user visits a website $\to$ Website sends ad request via SSP $\to$ Ad Exchange runs real-time auction $\to$ Advertiser DSP evaluates user data and places bid $\to$ Winning ad renders on user screen in under 100 milliseconds.