What is DOOH advertising (digital out-of-home)?
Short answer: DOOH (digital out-of-home) advertising is advertising on digital screens in public spaces — digital billboards, transit displays, mall and elevator screens. It is the data-driven evolution of classic billboards, and it can now be bought programmatically and triggered by time, location, weather, or audience.
Key takeaways
- DOOH = digital screens in public spaces (billboards, transit, malls).
- Programmatic DOOH allows automated, data-triggered buying.
- It blends broadcast-scale reach with digital flexibility.
- Measured via impression estimates, mobile location data, and brand lift.
The billboard never went away — it went digital. DOOH replaces static posters with screens that can change by the second, letting advertisers run dynamic, contextual creative in the physical world and buy it with the same automation they use online.
Where DOOH appears
- Digital billboards along roads and in city centers.
- Transit screens in stations, airports, and on vehicles.
- Place-based screens in malls, gyms, elevators, and offices.
What makes programmatic DOOH different
Traditional out-of-home meant booking a board for weeks. Programmatic DOOH lets you buy screen time automatically through a DSP and trigger ads by conditions — show a hot-coffee ad when it is cold, swap creative by time of day, or activate screens near your stores. It is flexible, contextual, and measurable in a way posters never were.
How to measure DOOH
You cannot click a billboard, so DOOH relies on:
- Impression estimates from audience measurement data, usually expressed as a CPM.
- Mobile location data to link exposure to later store visits or site sessions.
- Brand lift and footfall studies for awareness and visit goals.
- Blended MER and incrementality for revenue impact.
FAQ
What is DOOH advertising?
Advertising on digital screens in public spaces — digital billboards, transit, malls. It is the digital evolution of out-of-home advertising.
What is programmatic DOOH?
Buying digital out-of-home screen time automatically through a DSP, triggered by time, location, weather, or audience data.
How is it measured?
Through impression estimates, mobile location data linking exposure to visits, and brand lift studies, usually on a CPM basis.