#21c

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

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 #21c — $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
7
Recent posts
Mastodon
~0/hr
Recent pace
Mastodon · last 7
0
Avg reactions / post
Mastodon · last 7
—
Reddit posts / month
Reddit search
—
Open-web mentions
hashtag.org Firehose

Day-by-day usage

measured · fosstodon.org (Mastodon public tags API) · fetched 2026-07-31 18:43 UTC
0
07-25
0
07-26
0
07-27
0
07-28
0
07-29
0
07-30
0
07-31

0 uses by 0 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 2026-07-31 18:43 UTC
#BillC21
1 uses · 1 accounts / 7d
#f399578c21c
0 uses · 0 accounts / 7d
#fdc58aad21c
2 uses · 2 accounts / 7d
#f21bebf374c
2 uses · 2 accounts / 7d
#a7db334c21a
0 uses · 0 accounts / 7d
#fb21c8c11a6
1 uses · 1 accounts / 7d
#aa0de21c9c2
1 uses · 1 accounts / 7d
#fc21c466d37
2 uses · 2 accounts / 7d
#f2cb21e2c9c
0 uses · 0 accounts / 7d
#a21e93b895c
2 uses · 1 accounts / 7d
#aa2f0fdd21c
0 uses · 0 accounts / 7d
#f9cc21b10c1
1 uses · 1 accounts / 7d

Live pulse

measured · fosstodon.org (Mastodon tag timeline) · fetched 2026-07-31 18:43 UTC

Everything below is measured over the latest 7 public posts (spanning ~19966 hours).

Posting hours (UTC)

00:0012:0023:00

Languages: English (6) · Spanish (1)

Avg boosts / post: 1.7

Top of the latest posts

  • [09:13] Expect temperatures of 21C and 'blue skies' - Met Éireann We can expect blue skies and temperatures reaching up to 21C today and tomorrow, a senior forecaster with Met Éireann has said. https://www.rte.ie/news/2025/0409/1506615-expe

    RTE News Headlines@[email protected]♥ 0↻ 02025-04-09 07:38 UTCView post →

  • IndigE-girl Comedy Tuesday, February 18, 2025 Yesssssss https://jflvancouver.com/show/indige-girl-comedy/ #bcpoli #Indigenous #21c #comedy #vancouver #TheMST

    Stephen Elliott~Buckley@[email protected]♥ 0↻ 02025-02-04 00:51 UTCView post →

  • My department is advertising for a fixed-term University Teacher in English with expertise in contemporary literature. Deadline: 3 June. https://vacancies.lboro.ac.uk/tlive_webrecruitment/wrd/run/ETREC107GF.open?VACANCY_ID=367809VDoN&WVID=5

    Wim Van Mierlo@[email protected]♥ 0↻ 02024-05-10 14:08 UTCView post →

#21c across platforms

every network with a public tag surface

Follow #21c 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/21c