#21u

Live, measured metrics for the hashtag #21u 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 #21u

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 #21u — $5,313.74/yr→Buy on hashtag.space (web3)
card via hashtag.org · tokens via hashtag.space
3
Uses / 7 days
Mastodon
3
Accounts / 7 days
Mastodon
40
Recent posts
Mastodon
~0/hr
Recent pace
Mastodon · last 40
0
Avg reactions / post
Mastodon · last 40
—
Reddit posts / month
Reddit search
—
Open-web mentions
hashtag.org Firehose

Day-by-day usage

measured · mastodon.online (Mastodon public tags API) · fetched 2026-11-07 02:50 UTC
0
11-01
0
11-02
1
11-03
1
11-04
1
11-05
0
11-06
0
11-07

3 uses by 3 unique accounts across the window. Real per-day counts, not estimates. Newest bar is today so far.

Related hashtags

measured · mastodon.social (Mastodon public search API) · fetched 2026-11-07 02:50 UTC

No related tags with measured usage found for #21u.

Live pulse

measured · mastodon.online (Mastodon tag timeline) · fetched 2026-11-07 02:50 UTC

Everything below is measured over the latest 40 public posts (spanning ~2509 hours).

Posting hours (UTC) — busiest: 07:00

00:0012:0023:00

Languages: English (34) · Japanese (6)

Avg boosts / post: 0

Top of the latest posts

  • https://www.wacoca.com/baseball/1436363/ 「ラグザス アジアプロ野球チャンピオンシップ2026」 侍ジャパングッズ販売について | トップ | お知らせ ##NPB ##プロ野球 #12U #15U #18U #21U #baseball #japan #JBMC #NPBエンタープライズ #SAMURAI #WBC #侍ジャパン #女子代表 #日本代表 #日本野球 #社会人代表 #野球

    Baseball Japan@[email protected]♥ 0↻ 02026-11-05 04:38 UTCView post →

  • https://www.wacoca.com/baseball/1436245/ ピッチコムを使用し練習 チーム全体で明るさ目立ち度会隆輝「すごく充実した時間」 | トップ | チームレポート ##NPB ##プロ野球 #12U #15U #18U #21U #baseball #japan #JBMC #NPBエンタープライズ #SAMURAI #WBC #侍ジャパン #女子代表 #日本代表 #日本野球 #社会人代表 #野球

    Baseball Japan@[email protected]♥ 0↻ 02026-11-04 12:58 UTCView post →

  • https://www.wacoca.com/baseball/1436041/ 井口資仁新監督のもと初ミーティングや初練習 正木智也や山口航輝らへの期待を明かす | トップ | チームレポート ##NPB ##プロ野球 #12U #15U #18U #21U #baseball #japan #JBMC #NPBエンタープライズ #SAMURAI #WBC #侍ジャパン #女子代表 #日本代表 #日本野球 #社会人代表 #野球

    Baseball Japan@[email protected]♥ 0↻ 02026-11-03 14:50 UTCView post →

#21u across platforms

every network with a public tag surface

Follow #21u 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.

X (Twitter) ↗Instagram ↗TikTok ↗Facebook ↗LinkedIn ↗YouTube ↗Threads ↗Bluesky ↗Mastodon ↗Reddit ↗Pinterest ↗Tumblr ↗

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/21u