#u

Live, measured metrics for the hashtag #u 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 #u

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.

$25,000.00/ year · 1-character #name
Claim #u — $25,000.00/yr→Buy on hashtag.space (web3)
card via hashtag.org · tokens via hashtag.space
12
Uses / 7 days
Mastodon
12
Accounts / 7 days
Mastodon
40
Recent posts
Mastodon
~0.1/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 2026-09-09 10:51 UTC
1
09-03
2
09-04
1
09-05
4
09-06
2
09-07
0
09-08
2
09-09

12 uses by 12 unique accounts across the window. Real per-day counts, not estimates. Newest bar is today so far.

Related hashtags

measured · mastodon.online (Mastodon public search API) · fetched 2026-09-09 10:51 UTC
#U2
18 uses · 15 accounts / 7d
#1u
18 uses · 6 accounts / 7d
#OmU
11 uses · 9 accounts / 7d
#alt4u
0 uses · 0 accounts / 7d
#u20wwc
163 uses · 12 accounts / 7d
#u9
1 uses · 1 accounts / 7d
#u80
2 uses · 2 accounts / 7d
#NiziU
1 uses · 1 accounts / 7d
#U3
1 uses · 1 accounts / 7d
#u1
2 uses · 2 accounts / 7d
#U17
2 uses · 2 accounts / 7d
#uConsole
1 uses · 1 accounts / 7d

Live pulse

measured · mastodon.online (Mastodon tag timeline) · fetched 2026-09-09 10:51 UTC

Everything below is measured over the latest 40 public posts (spanning ~522 hours).

Posting hours (UTC) — busiest: 10:00

00:0012:0023:00

Languages: English (27) · Spanish (5) · Japanese (2) · Portuguese (1) · Russian (1)

Avg boosts / post: 0.4

Top of the latest posts

  • Napa winery that rose from wildfire now faces bankruptcy and millions in debt Another iconic California winemaker is having money troubles. Signorello Estate — a Napa Valley winery… #wine #Wine #atlasfire #bankruptcy #ChaloneVineyard #compa

    Wine@[email protected]♥ 0↻ 02026-09-09 10:40 UTCView post →

  • Napa winery that rose from wildfire now faces bankruptcy and millions in debt Another iconic California winemaker is having money troubles. Signorello Estate… #dining #cooking #diet #food #Wine #atlasfire #bankruptcy #ChaloneVineyard #compa

    Dining and Cooking@[email protected]♥ 0↻ 12026-09-09 10:10 UTCView post →

  • #news ⚡ Bundesregierung begrüßt neue US-Friedensgespräche im Ukraine-Krieg: Die Bundesregierung hat die neuen Vermittlungsbemühungen der USA im Ukraine-Krieg begrüßt."Ich kann nur sagen, dass es gut ist, dass d... https://hubu.de/?p=342727

    Hubu.de@[email protected]♥ 0↻ 02026-09-07 11:00 UTCView post →

#u across platforms

every network with a public tag surface

Follow #u 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/u