DOOH Advertising: The Complete Guide to Digital Out-of-Home

What Is Digital Out-of-Home (DOOH) Advertising?

Digital Out-of-Home advertising encompasses any digital display-based advertising that reaches consumers outside their homes. This includes digital billboards on highways, screens in shopping centres, airport departure boards, taxi top displays, gym screens, and in-store retail media networks.

The global DOOH market was valued at approximately $15.7 billion in 2023 and is projected to reach $29 billion by 2030, growing at a compound annual growth rate of 9.2%. It is one of the few traditional advertising channels experiencing consistent growth.

Why DOOH Is Growing

Several converging trends are driving DOOH expansion:

Programmatic Technology

The integration of programmatic buying — automated, data-driven ad purchasing — into DOOH has dramatically increased its accessibility. Advertisers can now buy DOOH impressions through the same demand-side platforms (DSPs) they use for online advertising, making cross-channel campaigns simpler to manage.

Data-Driven Audience Targeting

Modern DOOH networks leverage mobile location data, demographic profiling, and contextual signals to deliver relevant messages to specific audiences. A fitness brand can now target screens near gyms at 6am on weekdays. A restaurant can trigger ads on digital billboards when traffic conditions bring hungry commuters nearby.

Dynamic Creative

Unlike static out-of-home, DOOH supports real-time content updates. Advertisers can change creative based on weather, time of day, current events, or inventory levels. A fashion retailer can show winter coats when temperatures drop, or promote an umbrella sale on rainy days.

Types of DOOH Environments

Transit: Airports, train stations, bus shelters, subway platforms. These environments capture captive audiences during periods of downtime and offer extended exposure times.

Retail: Shopping malls, big-box retailers, convenience stores, pharmacies. These screens reach consumers at or near the point of purchase, making them highly effective for conversion-focused campaigns.

Out-of-Home: Traditional billboard replacements — roadside digital displays, building wraps, sports stadiums. These prioritise mass reach and brand awareness.

Place-Based: Gyms, offices, healthcare facilities, restaurants, hotels. These environments offer highly targeted, dwell-time-rich exposure to specific demographic segments.

Retail Media Networks: The New DOOH Opportunity

One of the most significant developments in DOOH is the emergence of retail media networks. Major retailers — including Walmart, Kroger, and Target — have built advertising businesses on top of their in-store screen networks. Brands pay premium rates to advertise at the precise moment shoppers are making purchase decisions.

For smaller and mid-market retailers, platforms like ABC Play enable the same capability. By connecting in-store screens to a programmatic ad layer, independent retailers can monetise their physical footprint and receive a share of national advertising spend.

Measuring DOOH Effectiveness

DOOH measurement has matured significantly:

• Impression counts — based on traffic data, footfall sensors, and camera-based anonymised counting
• Reach and frequency — how many unique individuals saw an ad and how many times
• Attribution — linking ad exposure to store visits via mobile location data
• Uplift studies — comparing sales or footfall in areas exposed vs. not exposed to a campaign

How to Get Started with DOOH

For businesses looking to participate in DOOH — either as advertisers or as screen network operators:

1. As an advertiser: Work with a DOOH specialist or use programmatic DSPs that include DOOH inventory. Define your target audience, environment, and content format.

2. As a network operator: Install commercial screens in your locations, connect them to a content management and ad delivery platform like ABC Play, and register your inventory with programmatic exchanges.

The barrier to entry is lower than ever. A single-screen retail location can participate in the DOOH ecosystem and generate meaningful revenue from national and local advertisers.