Thanks Randy. This is correct: to be more precise, Traackr ranks influencers based on 3 scores:
Reach measures the size of the audience of the individual across all their social presence
Resonance measures the engagement of the audience in regards to the influencer
Relevance measures how active an influencer is in specific conversations defined by your keywords.
This methodology- which Brian Solis made his own in his key report on influencer tech a few years ago- enables users to classify the most impactful people on the web based on the specific topic they are interested in