At a glance#

Brand building works through memory, slowly, and shows up in sales late. If the only numbers on the dashboard are this month's sales and clicks, brand effects are invisible until they are lost. Brand measurement fills the gap. The brand equity and how brands grow pieces explain what a brand is and how it grows; this piece is about measuring it.

  • The decision it informs whether the brand is getting stronger among the people who buy the category, whether a campaign moved memory, and whether the long-term investment is paying.
  • Tracking studies ask category buyers the same questions at intervals. Jenni Romaniuk's Better Brand Health builds tracking on category entry points, mental availability and mental advantage1.
  • Brand lift compares survey answers of people who saw a campaign with a control group who did not7.
  • Share of search a brand's share of category searches, which Les Binet showed can lead market share4, 5.
  • Linking to sales brand measures earn their place when they are read alongside sales, the mix model and experiments10, 11.

The decision it informs#

Brand measures answer three questions that sales cannot answer in time. Is the brand gaining or losing ground in memory, compared with competitors? Did this campaign leave a trace in the minds of the people who saw it? Is the long-term investment working, before the sales effect is large enough to see? The figure below shows why: brand effects compound slowly while activation effects spike and fade.

  • Sales
  • Time
  • Brand building: long, slow growth
  • Activation: short spikes in sales
Brand and activation over time. Brand building: long, slow growth. Activation: short spikes in sales.
Brand effects build slowly and last; activation effects are quick and fade.

A marketing team that cannot show the slow line loses budget to the fast one. Brand measurement is how the slow line becomes visible, and the brand-activation split calculator is where the budget consequence is worked out.

What a tracker should measure#

Measures for a brand health tracker

  1. Mental penetration

    Share of category buyers who link the brand to at least one buying situation

  2. Mental market share

    The brand's share of all brand links to the category's entry points

  3. Network size

    How many entry points the brand is linked to, among those who link it to any

  4. Distinctive assets

    Whether people recognise the brand's colours, logo or sound without the name

  5. Consideration and preference

    Whether the brand is on the shortlist, and how it ranks

  6. Usage and penetration

    Who has bought, recently, and how often

Mental-availability measures after Romaniuk; the last three are common tracker measures.

Traditional trackers ask about awareness, image statements and intention. Romaniuk argues for a framework that fixes many of their problems by starting from category entry points (CEPs), the situations and needs that bring a category to mind1. See category entry points and mental availability in the glossary.

  • Mental market share is the brand's share of the links between brands and the category's entry points, relative to competitors2.
  • Mental penetration is the share of category buyers with at least one CEP link to the brand, and network size is the average number of links among those people3.

These measures behave like market share: comparable across brands, and read against competitors rather than in isolation. Add a few classic measures for continuity, a check on distinctive brand assets, and behaviour (who bought and when), and the tracker tells you both where the brand stands in memory and whether that memory is converting.

Designing a tracking study#

Building a tracker that can be trusted

  1. 1Define the category and its buyers

    Sample people who buy the category, including your rivals' customers

  2. 2List the entry points

    From qualitative research: the needs, moments and places that trigger the category

  3. 3Fix the questionnaire

    Same questions, same order, same competitors, wave after wave

  4. 4Choose the rhythm

    Continuous fieldwork, or waves frequent enough to see change, with samples large enough per period

  5. 5Report against rivals

    Every measure as a share or a gap to competitors, with its margin of error

  6. 6Review with sales

    Read the tracker beside sales, share of search and the mix model

The order matters: a tracker built on the wrong category definition measures the wrong market.

Three design rules make the difference. Sample category buyers, not your customer list: growth comes largely from people who do not buy you yet, as the how brands grow piece explains. Keep the questionnaire stable: every change breaks the trend line. Report uncertainty: a two-point movement in a small monthly sample is often noise, so roll periods together or set a threshold before calling a change.

A tracker need not be expensive. A smaller business can run a few waves a year on an online panel, keep the list of entry points to the handful that matter most, and lean on share of search between waves (see the founder or small business hub). What it cannot skip is the comparison with competitors and the stable questionnaire: without them the numbers have nothing to be read against.

Brand lift, share of search and the tracker#

Brand trackerBrand lift studyShare of search
QuestionHow healthy is the brand among category buyersDid this campaign move memoryIs interest in the brand rising against rivals
MethodRepeated survey of category buyersSurvey of exposed people and a control groupThe brand's share of category searches
SpeedMonths for a trendWeeks, during or just after a campaignWeekly, and historic
CostHighestOften included with media on large platformsLow
Main limitSlow; sample sizes cap detailOne campaign, one platform, short termA proxy; affected by price and news
Three instruments, three questions; together they cover the brand's short and long term.

Brand lift is an experiment applied to memory. In Google's version, a sample group that saw the ads and a control group that was eligible but was not shown them answer short surveys, and the difference in recall, consideration and awareness is the lift; in Display & Video 360 the surveys run for 28 days or until enough responses are collected7. Google describes delivering a one-question survey to both groups about a day after they saw, or did not see, the ad8. Behind such designs are methods like ghost ads, which the American Marketing Association noted several platforms offer9. Brand lift is useful for creative and media choices within a campaign. It is not brand health: it measures a short-term change on one platform, and ad recall is not the same as a link to a buying situation. See brand lift and, for test design, incrementality and experiments.

Share of search is the cheap, fast complement. Binet defines it as a brand's organic searches divided by all searches for brands in the category, and points out that the data from Google Trends are free, go back to 2004 and can be weekly4, 5. See share of search.

Linking brand measures to sales#

The link has to be built, not assumed. Three ways work.

Share of search against market share. Presenting his analysis at the IPA's EffWorks Global in 2020, Binet showed share of search leading market share in automotive, energy and mobile handsets: by about six months for handsets, zero to three months for energy brands and nine to twelve months for car makers4. He was clear that it is not a perfect predictor, because conversion also depends on other factors, price above all4, 5. He also found that share of voice has two effects on share of search: a large short-term effect that fades quickly and a longer-term effect that decays slowly6. That gives a planner a testable chain from spend to interest to share; the ESOV calculator sets the ambition for the first link.

Brand measures in the mix model. A mix model that includes a tracker measure or share of search as an intermediate outcome can show how much of a channel's effect runs through the brand rather than straight to sales. The IPA's view is that marketers who build a learning culture integrate econometrics, experiments and attribution11; brand measures are what lets that integration see the long term. See marketing mix modelling.

One review. The IPA's Making Effectiveness Work argues that no single method is a silver bullet10. In the triangulation used across this track, the mix model sets budgets, experiments establish cause, attribution optimises within channels, and the brand tracker and share of search are the leading indicators. Put them on one page, with the sales line, for the same meeting.

A worked example (illustrative)#

Illustrative, with no real data. A regional coffee chain wants to grow in a city where a larger rival dominates. Qualitative work gives it a list of entry points: a quick coffee on the way to work, somewhere to meet a client, a treat on a Friday afternoon, a place to work for an hour. Its tracker samples coffee buyers in the city each month and reports mental penetration and mental market share against the rival. The first campaign produces a strong brand lift in ad recall, but the tracker shows no change in links to any entry point. The team rewrites the creative to show the brand in two chosen situations, keeps its colour and cup design constant as distinctive assets, and watches share of search monthly. Two quarters later the tracker shows its links to "somewhere to meet a client" rising, and share of search moving with them; the next mix model includes both as brand measures.

Common mistakes#

  1. Tracking customers only The people you need to win are not on your list.
  2. Reading awareness as health Being known is not the same as coming to mind in a buying situation.
  3. Changing the questionnaire every year The trend line is the asset; protect it.
  4. Treating brand lift as brand building A rise in ad recall is a start, not proof of growth.
  5. Calling noise a change Small monthly samples move by chance; agree thresholds in advance.
  6. Keeping brand and sales in separate meetings The link is only made if they are read together.

Put it to work#

On Monday:

  1. Write the decisions brand measures must inform this year, for the brand manager and the CMO.
  2. Check your tracker's sample: category buyers, including rivals' customers?
  3. List the category's entry points from research, and add CEP-based measures (mental penetration, mental market share) to the next wave.
  4. Start a monthly share of search for your brand and the main rivals, beside market share.
  5. For the next big campaign, plan a brand lift study and write in advance what result would change the creative.
  6. Ask for brand measures to be included in the next mix model.
  7. Put tracker, share of search, sales and the mix model on one page in the measurement framework, reviewed quarterly; see the brand awareness hub for related tools.

Further reading#

Sources

Every claim worth checking, with somewhere to check it.

  1. Better Brand Health Tracking: Tracking Metrics that Lead to Brand GrowthResearch World (ESOMAR) · accessed 2026-10
  2. Better Brand Health with Jenni Romaniuk (Part 2)Bigeye · accessed 2026-10
  3. Unlocking Brand Growth (session document, The Quirk's Event 2025)Quirk's Media · 2025
  4. Share of search can predict market shareWARC · 2020
  5. Binet presents fast, cheap, predictive Share of Search metricIPA · 2020
  6. Les Binet urges marketers to measure Google searches to predict brand healthCampaign · 2020
  7. Brand Lift – Display & Video 360 HelpGoogle · accessed 2026-10
  8. Brand LiftThink with Google (Asia-Pacific) · accessed 2026-10
  9. Johnson, Lewis and Nubbemeyer receive 2022 Weitz-Winer-O'Dell AwardAmerican Marketing Association · 2022-04-07
  10. Making Effectiveness Work (Simeon Duckworth, Neil Charles and Duncan Stoddard)IPA · 2024-10
  11. EconometricsIPA · accessed 2026-10