#Open

Live, measured metrics for the hashtag #Open 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 #open

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.

$2,449.80/ year · 4-character #name
Claim #open — $2,449.80/yr→Buy on hashtag.space (web3)
card via hashtag.org · tokens via hashtag.space
36
Uses / 7 days
Mastodon
25
Accounts / 7 days
Mastodon
40
Recent posts
Mastodon
~0.2/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 · fosstodon.org (Mastodon public tags API) · fetched 2026-09-13 10:34 UTC
7
09-07
8
09-08
6
09-09
2
09-10
8
09-11
2
09-12
3
09-13

36 uses by 25 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 10:34 UTC
#OpenSource
1,815 uses · 1,083 accounts / 7d
#OpenAI
733 uses · 510 accounts / 7d
#OpenBSD
75 uses · 50 accounts / 7d
#OpenScience
118 uses · 103 accounts / 7d
#OpenData
58 uses · 52 accounts / 7d
#OpenAccess
89 uses · 64 accounts / 7d
#OpenSUSE
39 uses · 34 accounts / 7d
#OpenDesk
13 uses · 13 accounts / 7d
#OpenSCAD
13 uses · 13 accounts / 7d
#OpenCode
9 uses · 9 accounts / 7d
#OpenWRT
10 uses · 8 accounts / 7d
#OpenSSL
12 uses · 12 accounts / 7d

Live pulse

measured · fosstodon.org (Mastodon tag timeline) · fetched 2026-09-13 10:34 UTC

Everything below is measured over the latest 40 public posts (spanning ~163 hours).

Posting hours (UTC) — busiest: 14:00

00:0012:0023:00

Languages: English (36) · Dutch (2) · German (2)

Avg boosts / post: 1.3

Top of the latest posts

  • Es ist so schön, es endlich in den Händen zu halten ✨ Unser ABC der Offenheit könnt ihr euch morgen bei unserer @WikimediaAT Präsentation in Wien abholen & mitnehmen. Dienstag, 8. September Innenhof Museumsquartier 18:30 - 20:00 Uhr Wenn ih

    samvie@[email protected]♥ 6↻ 122026-09-07 11:03 UTCView post →

  • De lat ligt hoger dan Europese Techreuzen…. #autonomie #digitaleSoevereiniteit #bigTech #bigEuroTech #SME #MKB #values #waarden #open en andere zaken… https://ibestuur.nl/digitale-toekomst-eu/europese-politiek-en-beleid/de-lat-ligt-hoger-da

    Wladimir Mufty@[email protected]♥ 1↻ 202026-09-07 16:06 UTCView post →

  • Vantre, the bistro that’s closed every weekend but is packed during the week | Latest news The Concept Saturday and Sunday? Closed. In Paris, there’s a bistro that has decided to close on the ve… #dining #cooking #diet #food #Frenchrestaura

    Dining and Cooking@[email protected]♥ 0↻ 12026-09-13 06:00 UTCView post →

What “open” means

Wiktionary

open

  • adjectiveNot closed
Full entry on Wiktionary →

#open across platforms

every network with a public tag surface

Follow #open 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/open