How to Measure Billboard Advertising — Tracking & Attribution

The old line that “billboards can’t be measured” is a decade out of date. In 2026, a well-designed billboard campaign is one of the more measurable media buys you can make — if you set it up right. Here’s a practical guide to tracking billboard results.

The principle: measure outcomes, not the medium

You can’t track a building. But you don’t need to. You track what the billboard does — awareness, discovery, and action. All three are measurable with the right hooks.

The five methods that work

1. QR codes. Put a unique QR code on the creative. Every scan is directly attributable — tie it with UTM parameters to website visits, downloads, and purchases. It’s no longer a gimmick: about 9 in 10 users engage with QR codes weekly.

2. Footfall attribution. Match anonymized mobile location data from people exposed to your billboard with the stores they later visit, comparing against a control group. This is the gold standard for brick-and-mortar.

3. Brand lift studies. Survey an exposed audience against an unexposed one on awareness, recall, and purchase intent — the method behind many published recall figures.

4. Search lift. Track branded search volume in the market during the campaign. Billboards reliably drive people to search: 44% of mobile users who see a DOOH ad search the advertiser.

5. Mobile retargeting. Serve follow-up mobile ads to phones near your billboard — both extending the campaign and proving exposure.

What the research says you’ll find

The effects are well documented:

• 74% of mobile users act on their phone after seeing a digital billboard (search, site visit, social).
• Outdoor delivers the highest ad recall of any format at 86%.
• Nielsen’s analysis of 1,200+ campaigns puts billboard ROI at 497%.

Measure any one effect and you’ll have a number for your budget deck.

Design for measurement from day one

The biggest mistake is deciding to measure after launch. Build measurement into the plan:

• Set exposed and control geographies from the start if you want footfall or brand lift.
• Put QR and promo codes in the creative so scans are trackable.
• Choose a measurable outcome — store visits, branded searches, QR scans — before you buy.
• Run long enough (a few weeks) for effects to accumulate.

Do this and your report will be data, not anecdotes.

When it’s genuinely hard to measure

Honest caveat: a single static billboard with no digital element and no tracking hook is hard to attribute precisely. The solution is to use digital billboards (trackable impressions) and add hooks (QR, codes) — which is what most modern campaigns do anyway.

Measurement done for you

You shouldn’t need to become an attribution scientist to buy a billboard. A good partner sets up the measurement: footfall design, QR hooks, search-lift tracking, and a report that connects reach to results.

That’s what Globalstars includes in every billboard campaign. We plan the measurement alongside the media — so when it’s time to justify the spend, you’ll have numbers, not “trust me.”

Billboards aren’t the unmeasurable medium of legend. [Start a billboard campaign you can actually measure](https://www.globalstarscn.com/AdvertisingFormats/dooh/).

Data sources: OAAA/Harris Poll; Solomon Partners; Nielsen; QR adoption research.