#30c3

Live, measured metrics for the hashtag #30c3 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 #30c3

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 #30c3$2,449.80/yrBuy on hashtag.space (web3)
card via hashtag.org · tokens via hashtag.space
1
Uses / 7 days
Mastodon
1
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 · fosstodon.org (Mastodon public tags API) · fetched 2026-09-15 08:33 UTC
0
09-09
0
09-10
0
09-11
1
09-12
0
09-13
0
09-14
0
09-15

1 uses by 1 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 2026-09-15 08:33 UTC

Live pulse

measured · fosstodon.org (Mastodon tag timeline) · fetched 2026-09-15 08:33 UTC

Everything below is measured over the latest 40 public posts (spanning ~52440 hours).

Posting hours (UTC) — busiest: 14:00

00:0012:0023:00

Languages: English (21) · German (17) · Japanese (2)

Avg boosts / post: 1.1

Top of the latest posts

  • Sagt mal… gab es nicht vor *hüstel* ein paar Jahren auf dem C3 einen Talk zum Thema 3D Druck von versteckten Handschellenschlüsseln? Wenn ich mich recht erinnere u.a. vom #RFguy vom #cccmuc? Oder verwechsele ich da was? #30C3 #31C3 #32C3

    M Schommer@[email protected]012026-09-12 16:05 UTCView post →
  • Mein Abteilungsleiter hat heute gelernt, dass die CPU sehr wohl den Datendurchsatz durch die Netzwerkkarte beeinflussen kann. Dinge die ich schon zum #30C3 merkte 🤭

    DrRetro@[email protected]002026-06-30 15:27 UTCView post →
  • [30c3] Ratkat - Mad Max Mix https://www.mixcloud.com/ratkat/30c3-mad-max-mix/ #ratkat #30c3

    daily dose of c3sets.de@[email protected]002026-05-18 14:44 UTCView post →

#30c3 across platforms

every network with a public tag surface

Follow #30c3 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/30c3