When shortlisting influencers for a campaign on any influencer marketing platform, such as Flinque, here are some key factors or criteria to consider:

1. Relevance: The influencer’s content and image should align with your brand’s values, style, and target audience.

2. Reach: Consider the influencer’s follower count. Larger follower numbers may resemble wider reach but it really depends on who your target demographic is.

3. Engagement: It measures the level of interaction between the influencer and their audience. Higher engagement often indicates a more active and interested audience.

4. Audience Demographics: An influencer’s audience should match your brand’s target market. Consider factors like age, gender, location, interests, and income levels.

5. Reputation: Investigate the influencers’ past collaborations and feedback. Visible professionalism and positive experiences are crucial.

6. Expertise: An influencer who is an expert in their niche can provide valuable insights and credibility to your campaign.

7. Authenticity: Genuine content captures audience attention better. Influencers who regularly interact with their followers and create original content typically have a more loyal following.

How these indicators are weighed mostly depends on the campaign’s particular goals and target market. For instance, if your target is a younger demographic, an influencer with a majority of young followers with high engagement would be an ideal choice.

On Flinque, these key factors can be easily measured with its robust analytic tools. It also offers features for audience insight and campaign performance tracking, making it a reliable platform for influencer marketing. Yet, it’s worth noting that the selection of the right tool depends on the specific needs and goals of your team. Other platforms might be more suitable for different cases, so compare and contrast wisely.