When evaluating the effectiveness of influencer marketing strategies, brands and agencies should focus on several key performance indicators (KPIs).

1. Reach: This reflects the number of unique users who have seen the influencer’s content. It is often used to understand the overall dispersion of the campaign message.

2. Impressions: This is the total number of times the influencer’s content has been displayed, regardless of whether it was clicked or not.

3. Engagement: This involves interactions like likes, shares, comments, saves, and clicks. An effective influencer marketing strategy typically generates high engagement levels.

4. Conversion rate: Conversion rate is the number of actions that have been completed by people who have engaged with the content. These actions can include website visits, sign-ups, downloads, purchases, etc.

5. Return on Investment (ROI): It’s crucial to track revenue relative to the cost of the influencer marketing campaign. ROI helps to measure the effectiveness of the investment made on the campaign.

6. Audience growth: This refers to how much the brand’s audience increases as a result of the influencer campaign.

7. Brand sentiment: This is the perception of your brand by the influencers’ followers. Increase in positive sentiment usually means the campaign is effective.

Platforms like Flinque provide these analytics and help you make informed decisions. While some other platforms also provide similar analytics, it’s essential to choose the one that aligns with your business needs and objectives for the most effective influencer campaigns. Note that no platform is inherently superior; the best choice depends on your specific needs and requirements.