#A21

Live, measured metrics for the hashtag #A21 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 #a21

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.

$5,313.74/ year · 3-character #name
Claim #a21 — $5,313.74/yr→Buy on hashtag.space (web3)
card via hashtag.org · tokens via hashtag.space
0
Uses / 7 days
Mastodon
0
Accounts / 7 days
Mastodon
40
Recent posts
Mastodon
~0/hr
Recent pace
Mastodon · last 40
0.2
Avg reactions / post
Mastodon · last 40
—
Reddit posts / month
Reddit search
—
Open-web mentions
hashtag.org Firehose

Day-by-day usage

measured · mas.to (Mastodon public tags API) · fetched 2026-10-30 00:21 UTC
0
10-24
0
10-25
0
10-26
0
10-27
0
10-28
0
10-29
0
10-30

0 uses by 0 unique accounts across the window. Real per-day counts, not estimates. Newest bar is today so far.

Related hashtags

measured · mas.to (Mastodon public search API) · fetched 2026-10-30 00:21 UTC

Live pulse

measured · mas.to (Mastodon tag timeline) · fetched 2026-10-30 00:21 UTC

Everything below is measured over the latest 40 public posts (spanning ~14015 hours).

Posting hours (UTC) — busiest: 05:00

00:0012:0023:00

Languages: German (28) · English (10) · French (1)

Avg boosts / post: 1

Top of the latest posts

  • #A21 Richtung Kiel bis Klein Barkau freigegeben - Ersatz für alte B404 https://www.kn-online.de/lokales/ploen/a21-richtung-kiel-bis-klein-barkau-freigegeben-ersatz-fuer-alte-b404-OJGGRDAHVNBWTDHXJVPXR7ORPU.html > „Wir schließen damit ein St

    KielKontrovers Blog@[email protected]♥ 4↻ 22026-04-01 18:12 UTCView post →
  • @SheDrivesMobility woran man erkennt, dass die Autobahn GmbH keine Ahnung von Verkehrsplanung hat. Das sind aber genau die, die als DIE Experten gelten. Die handeln halt nach Schema-F. Muss d natürlich gleich an Kiels #A21 Anschluss denken.

    KielKontrovers Blog@[email protected]♥ 3↻ 02025-08-30 14:25 UTCView post →
  • Letzte Woche habe ich auf Einladung von @NiklasHielscher vom @VCDNord eine Fahrradtour durch den #Grüngürtel unternommen, um mir zeigen zu lassen, was der Ausbau der B 404 zur #A21 tatsächlich bedeuten würde. Im verlinkten Beitrag auf meine

    Björn Thoroe@[email protected]♥ 2↻ 32025-11-05 09:37 UTCView post →

#a21 across platforms

every network with a public tag surface

Follow #a21 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/a21