A digital out-of-home ad lives by different rules than a social post. It's seen for a few seconds, often from across a street, usually with no sound, by someone who didn't choose to look. Get the creative right and a screen is unforgettable; get it wrong and people walk right past. Here are the rules that make DOOH work.
Rule 1: One idea, full stop
A DOOH screen is not the place for three messages. Pick one — an offer, a launch, a single benefit — and let everything serve it. If you can't say it in a glance, it's too much.
Rule 2: Big, legible, few words
People read DOOH in roughly two seconds, sometimes at distance and speed. That means:
- A short headline — think six words or fewer
- Large, high-contrast type that's readable far away
- Generous spacing; don't crowd the frame
If you have to squint at it on your laptop, no one will read it on the street.
Rule 3: Design for sound-off
Most real-world screens are silent. Your ad must work entirely without audio — carry the message in the visuals and text, never in a voiceover. (This is the biggest difference from a CTV spot, which is sound-on.)
Rule 4: Brand immediately
Don't save your logo for a reveal at the end — a viewer may only catch one frame. Make your brand and name clear from the first second so even a glance registers who it's from.
Rule 5: High contrast, bold visuals
Screens compete with a busy, bright environment. Strong color contrast, a single bold image, and clean composition cut through. Subtle, low-contrast art disappears outdoors.
Rule 6: End with a clear action
Give people somewhere to go: a QR code, a short link, an address, or a simple instruction. This is also your best measurement tool — every scan is a countable result. (See how DOOH is measured.)
Rule 7: Match the message to the moment
Digital screens let you change creative by time and place. Run a coffee message in the morning, a dinner one at night; a different offer near a venue than on a highway. Relevance to the moment lifts response.
Common mistakes to avoid
- Too much text — the number-one DOOH killer
- Relying on sound — it won't be heard
- Tiny logos or late branding — viewers miss who it's from
- Low contrast — invisible in a bright environment
- No call to action — attention with nowhere to go
A quick DOOH checklist
Before you run it, confirm:
- One message, readable in two seconds
- Six words or fewer in the headline
- Works perfectly with the sound off
- Brand clear in the first frame
- Bold, high-contrast visuals
- A QR code or short link to act on
The same creative principles flex across surfaces — and with Glo, your one video is auto-formatted for sidewalk screens, in-venue TVs, CTV, and phones, so you apply these rules once. To plan the video itself, read how to make a video ad for every screen.