How is Reach measured?

Reach is the measure of the total size of an influencer's online audience across all major social networks, blogs and more. The reach algorithm takes into account followers, fans, subscribers, visitors and other audience metrics. 

Reach is calculated on a scale from 1 to 100, representing the percentile in which this influencer fits. Reach also takes into account the diversity of audience across the influencer's social media platforms.
Essentially, Reach is a relative score that helps you understand how prominent an influencer is compared to others, depending on the mix of channels they have.

How is Audience measured?

Audience size is an estimated number of followers across key social media platforms of a given influencer; it is a relatively simple metric representing a sum of followers or subscribers. 

If an influencer's audience is significantly lower than other influencers with the same Reach score, we inflate their score to the average audience size of those influencers. This approach tries to take into account those influencers who may have less presence on social platforms but larger blog followings.

In a nutshell, both Audience and Reach talk about the size of an influencer's audience in slightly different ways.

Audience is a more simple concept representing an estimated number of followers across social media platforms while Reach is a score, which represents a more complex calculation behind the scenes.

Because Reach is a relative score, in some cases it may not have the exact same correlation to Audience for different influencers. For example, two influencers with the same total Audience number may have a slightly different Reach, depending on the difference in the channels they have.
Similarly, an influencer with a lower Audience number may have a higher Reach than another influencer, because their channels are more prominent on their respective platform based on the pool of all known influencers on that platform.

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