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Influencer marketing: what it is and how to measure results

Influencer marketing promotes a brand through creators and opinion leaders whose audiences trust their experience and voice. A campaign connects the business objective, creator selection, integration content and measurement method.

How creator partnerships work

An advertisement with a creator is an individual placement. Influencer marketing also covers audience research, format selection, content preparation and campaign analysis. Start by defining the change the brand needs and the evidence that could demonstrate it.

Campaign objective

For product awareness, assess reach among the intended audience and message recall. For demand generation, track visits and target actions. Agree on the primary KPI, observation period and data source before launch. Views alone do not demonstrate sales growth: results also depend on the product, offer and path to purchase.

Creator selection

Compare the topic, audience location and interests, consistency of views, advertising load and reputation. Follower count cannot replace these checks. Review past integrations and explain why the product fits the creator’s regular content. Then check the current requirements for the platform and placement.

Budget

The estimate includes placements, content preparation, usage rights, team work and analytics. Compare proposals with the same scope and terms. Define the hypotheses, scale and limits of a test first; use its results to decide which creator and format combinations to scale. There is no universal campaign price without a brief.

Measuring results

Compare forecasts and actuals for each creator: views, visits, target actions and costs. UTM tags, promo codes and CRM data help connect touchpoints to purchases, but part of the journey may remain unobserved. Do not add up reach as unique people without accounting for overlap. Causal sales lift requires a separate experiment or an explicitly described model.

CPV calculator

Three ways to check a media plan

Free CPV calculator: calculate cost per view, budget or views. Includes formulas, a hypothetical example and guidance on which costs to include.

CPV calculator

Practical resources

Start with the essentials

The ETC editorial team curated this collection. Every link leads to a standalone piece with methodology, limitations and sources where needed.

01 What an influencer marketing agency does 02 How to choose an influencer marketing agency 03 Micro-creators or million-follower accounts: how to choose 04 What makes up an agency fee

From knowledge to launch

Related ETC services

The resources help frame a decision; service pages show the project scope and the team’s areas of responsibility.