#FOSDEM
Live, measured metrics for the hashtag #FOSDEM from the open social web. Every number carries a named source and the time it was fetched. Nothing is estimated.
Own #fosdem
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.
Day-by-day usage
measured · fosstodon.org (Mastodon public tags API) · fetched 2026-09-12 12:23 UTC5 uses by 5 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 2026-09-12 12:23 UTCLive pulse
measured · fosstodon.org (Mastodon tag timeline) · fetched 2026-09-12 12:23 UTCEverything below is measured over the latest 40 public posts (spanning ~1076 hours).
Posting hours (UTC) — busiest: 09:00
Languages: English (34) · Swedish (2) · German (2) · Norwegian (1) · French (1)
Avg boosts / post: 10
Top of the latest posts
#FOSDEM will happen on the weekend of 2027-01-30 and 2027-01-31! We'll post a proper news item once all the automations work after our yearly archiving cutover. https://fosdem.org/2027/
@Codeberg so, about /me threatening to switch off #IPv4 during #FOSDEM and thus taking down #GitHub... Look what they did two days after my toot... https://bgp.tools/prefix/2606:50c0:c0de::/48#whois They're not reachable yet, but that's pro
#FOSDEM kick-off meeting
What “fosdem” means
WikipediaFree and Open source Software Developers' European Meeting (FOSDEM) is an annual software engineering conference. It is non-commercial and volunteer-organized with a focus on free and open-source software. Initiated in 2000, it is usually held during the first weekend of February, at the Campus Solbosch of the Université libre de Bruxelles (ULB) in the southeast of Brussels, Belgium.
“FOSDEM” on Wikipedia (CC BY-SA) →#fosdem across platforms
every network with a public tag surfaceFollow #fosdem 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/fosdem