We currently count 3.654 Mastodon instances, with 3.427.121 users (316.809 active during last month) and 433.435.738 published statuses.
Statistics for the last 30 days.
https://mastodon.help/stats/en
Mastodon Usage Statistics
https://trends.builtwith.com/cms/Mastodon
Usage statistics and market share of Mastodon
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