A successful influencer marketing campaign starts long before the first social media post goes live. It starts with choosing the right creator – someone whose audience, values and communication style align with the brand.
Influencer marketing has long been an established part of communications campaigns and marketing budgets. Yet, choosing the right influencers and content creators still sometimes comes down to follower counts and a subjective impression of their social media profiles.
While investment in influencer marketing has continued to grow in recent years, brands often face practical challenges, including limited time and resources for identifying the right partners. Influencer vetting – the process of assessing a creator’s suitability before entering into a collaboration – is a crucial step in campaign planning, yet one that is still frequently overlooked.
So why is influencer vetting so important, and how can brands approach it more effectively? Here are the key factors to consider when selecting influencers for your next campaign.
Choosing the right influencers starts with a clearly defined target audience, the messages the brand wants to communicate and the campaign’s objectives. Only once these foundations are in place can brands meaningfully assess whether a creator’s content, audience and communication style align with their identity and values.
Without clear criteria, influencer selection can easily become a matter of choosing from the profiles available rather than identifying creators who genuinely fit the brand and its campaign goals.
For example, an audience that follows an influencer primarily for humour may be less inclined to take a recommendation for a financial product seriously, regardless of how impressive the influencer’s metrics might look.
Audience analysis should also take geography, language, follower demographics and audience growth patterns into account. Sudden spikes in follower counts or video views without a corresponding increase in engagement may indicate artificially inflated metrics or paid promotion designed to create the impression of strong reach and relevance.
When influencers provide their own analytics, it is good practice to request data covering a longer period rather than relying on a single snapshot. This gives brands a more reliable picture of audience quality, growth patterns and overall performance.
Reviewing an influencer’s last 30 or so posts, or looking back over several months of content, can reveal far more than analytics alone.
This approach helps brands assess whether the creator’s tone of voice is consistent, whether sponsored content fits naturally into their profile or stands out from organic posts, and how they respond to comments – particularly criticism and negative feedback. It also offers an early indication of what the working relationship might look like in practice.
When evaluating influencer marketing performance, view counts alone do not reveal how actively an audience engages with the content. Engagement rate is useful, but it is not enough on its own to determine whether an influencer has a genuinely engaged community.
A closer look at the comments can provide more meaningful insights. If generic reactions, emojis and repetitive comments dominate, a high engagement rate may not reflect meaningful interaction or a strong relationship between the creator and their audience.
It is also worth comparing audience responses to sponsored posts with those to organic content. This helps determine whether followers engage with branded content to the same extent as they do with the creator’s regular posts – an important consideration when assessing an influencer’s potential effectiveness in a campaign.
Reviewing an influencer’s collaborations over the previous six to twelve months provides valuable additional context. A recent partnership with a direct competitor can undermine the credibility of a recommendation, which is why brands often include exclusivity clauses in influencer collaboration agreements.
It is also worth considering how frequently an influencer publishes sponsored content. A profile dominated by paid partnerships may indicate a risk of audience fatigue, potentially reducing the impact of future brand collaborations.
An influencer’s reputation should also be assessed beyond social media. A quick Google search can reveal how the person is perceived publicly, including media coverage, news stories, discussions on forums and other public commentary, as well as the causes or public activities they are known for.
Common influencer marketing red flags include sudden spikes in follower counts, repetitive or generic comments, an audience that does not match the brand’s target market, and undisclosed advertising.
However, even a carefully vetted influencer is not a risk-free choice. A creator’s reputation can change during a campaign, which is why monitoring should continue throughout the partnership rather than stop once the collaboration agreement has been signed.
Disclosing sponsored content is not simply a matter of good practice. It is also a requirement under European consumer protection law.
The Unfair Commercial Practices Directive prohibits covert advertising, including presenting paid content as independent editorial content. The European Commission’s guidance for influencers also emphasises the importance of clearly disclosing any commercial relationship behind a promotion.
In Croatia, these requirements are implemented through national consumer protection legislation. Depending on the circumstances, responsibility may also extend to the brand commissioning the collaboration.
Despite these requirements, consistent disclosure remains a challenge in practice. According to a 2023 study by the European Commission and national authorities, 97% of the influencers surveyed published commercial content, while only around one in five consistently identified it as advertising. Some relied on vague terms such as “collaboration” or “partnership” instead of using clear advertising disclosures, highlighting the need for more consistent standards.
In Croatia, IAB Croatia introduced its Guidelines for Better Influencing (Smjernice za bolje influencanje) in November 2025, alongside the campaign It’s Important to Know When It’s Paid (Važno je znati kad se plati). The initiative encourages the use of labels such as #oglas (advertisement) or #promo, accompanied by a clear disclosure of the commercial relationship.
Brands should therefore establish clear disclosure requirements, content approval procedures and guidelines for removing posts when necessary. These expectations should be outlined in the influencer collaboration agreement from the outset.
Clear rules protect both parties. For brands, they help reduce reputational and compliance risks. For influencers, they provide greater legal certainty and help maintain credibility with their audiences.
Audience trust is the foundation of every successful influencer marketing partnership – and one of its most vulnerable assets.
For brands, trust determines whether a recommendation will be taken seriously or dismissed as just another advertisement. Choosing the right influencers reduces potential risks and increases the likelihood that a campaign message will resonate with the intended audience.
Trust is equally important for influencers, as their reputation and long-term market position depend on it. Collaborating with brands that align with their values and audience helps maintain a consistent profile, while clear agreements on transparency and expectations reduce the risk of misunderstandings.
Influencer vetting is therefore in the interests of both parties. A thorough assessment before a collaboration begins, combined with consistent monitoring throughout the campaign, helps brands and creators build stronger, longer-term partnerships and achieve their communication objectives more effectively.
Ultimately, successful influencer marketing is not about choosing the creator with the biggest following. It is about finding the right fit – someone who can communicate a brand’s message credibly, connect with the right audience and build trust that extends beyond a single campaign.
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A successful influencer marketing campaign starts long before the first social media post goes live. It starts with choosing the right creator - someone whose audience, values and communication style align with the brand.
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