This information comes from the website of our audience analytics partner Social Data.
The location of an influencer's followers (including country and city) is determined by analyzing the respective location tags, the languages of their bio descriptions and captions under their recent posts.
The latest 150 posts are analyzed (or more than 150 posts provided that they have been published within the last two months).
Based on location tags, a time-map is created for both influencers and their audiences: it shows what location (country or city) covers the largest timeframe. That way Social Data makes sure that even if a person travels a lot (like celebrities or travel bloggers do), but keeps coming back to the same place - this particular country or city will be determined as their location.
For more information, please see: https://socialdata.hk/articles/geo_location.html