#Mastodon

Live, measured metrics for the hashtag #Mastodon from the open social web. Every number carries a named source and the time it was fetched. Nothing is estimated.

hashtag.org network · sponsored

Own #mastodon

This #name is available to claim. It becomes your portal on the open agent web: this very page, a keyword you rank for by an open public stake, and a verifiable identity for AI agents. Nobody else sells a page like this for every #name.

$110.68/ year · 8-character #name
Claim #mastodon$110.68/yrBuy on hashtag.space (web3)
card via hashtag.org · tokens via hashtag.space
725
Uses / 7 days
Mastodon
523
Accounts / 7 days
Mastodon
40
Recent posts
Mastodon
~5.7/hr
Recent pace
Mastodon · last 40
1.8
Avg reactions / post
Mastodon · last 40
Reddit posts / month
Reddit search
Open-web mentions
hashtag.org Firehose

Day-by-day usage

measured · fosstodon.org (Mastodon public tags API) · fetched 2026-09-13 02:38 UTC
104
09-07
134
09-08
106
09-09
111
09-10
128
09-11
138
09-12
4
09-13

725 uses by 523 unique accounts across the window. Real per-day counts, not estimates. Newest bar is today so far.

Related hashtags

measured · fosstodon.org (Mastodon public search API) · fetched 2026-09-13 02:38 UTC

Live pulse

measured · fosstodon.org (Mastodon tag timeline) · fetched 2026-09-13 02:38 UTC

Everything below is measured over the latest 40 public posts (spanning ~7 hours).

Posting hours (UTC) — busiest: 21:00

00:0012:0023:00

Languages: English (30) · German (2) · Spanish (1) · French (1) · Arabic (1) · Dutch (1)

Avg boosts / post: 3.2

Top of the latest posts

  • In 1933, the Nazi regime established its first #ConcentrationCamp on the site of a former munitions factory there, initially to house political prisoners -- people very like those of us who choose #Mastodon as our social media: leftists, #C

    Simon Brooke@[email protected]17212026-09-12 20:50 UTCView post →
  • I'm writing this, because something very similar is happening right now, right here on #Mastodon. The people of #Gaza are trapped in what has become, in effect, a giant #ConcentrationCamp. They are being deliberately starved. They are being

    Simon Brooke@[email protected]1392026-09-12 21:08 UTCView post →
  • But please, everyone -- and especially moderators -- can we have a bit of tolerance, a bit of compassion, here. #Gaza is one of the great crimes that is happening in our world right now. These are the people who are suffering. It's not the

    Simon Brooke@[email protected]7122026-09-12 21:42 UTCView post →

What “mastodon” means

Wiktionary · Wikipedia

mastodon/ˈmæstədɑn/

  • nounExtinct elephant-like mammal of the genus Mammut that flourished worldwide from Miocene through Pleistocene times; differs from elephants and mammoths in the form of the molar teeth.
Full entry on Wiktionary →

A mastodon is a member of the genus Mammut, which was endemic to North America and lived from the late Miocene to the early Holocene. Mastodons belong to the order Proboscidea, the same order as elephants and mammoths. Mammut is the type genus of the extinct family Mammutidae, which diverged from the ancestors of modern elephants at least 28 million years ago, during the Oligocene.

Mastodon” on Wikipedia (CC BY-SA) →

#mastodon across platforms

every network with a public tag surface

Follow #mastodon straight to each platform’s own tag page. Where a platform publishes open data we measure it above; the rest lock their numbers behind paid APIs, so we link rather than guess.

Every number above is measured from a named public API at the shown fetch time. Nothing is estimated or extrapolated. Platforms that lock their data behind paid APIs are not shown. Agents: the same numbers, as JSON, at /api/hashtags/mastodon