#QCon
Live, measured metrics for the hashtag #QCon from the open social web. Every number carries a named source and the time it was fetched. Nothing is estimated.
Own #qcon
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 2026-09-25 17:58 UTC0 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 2026-09-25 17:58 UTCLive pulse
measured · fosstodon.org (Mastodon tag timeline) · fetched 2026-09-25 17:58 UTCEverything below is measured over the latest 40 public posts (spanning ~21312 hours).
Posting hours (UTC) — busiest: 12:00
Languages: English (40)
Avg boosts / post: 0.8
Top of the latest posts
The recording (and transcript, for the sensible people who don't want to listen to me speaking) of my March QCon talk is online! If you want to understand how CHERI works and the relationship between memory safety and compartmentalisation,
David Chisnall (*Now with 50% more sarcasm!*)@[email protected]♥ 3↻ 192026-08-13 08:46 UTCView post →“Just add more instructions to the prompt.” Sound familiar? When an LLM acts up, prompt tuning can feel like the obvious fix. But context engineering isn’t about telling the model more - it’s about controlling what it actually sees. 👀 Snea
Anyone else at QCon? I'll be in the security-track unconference thing after lunch and then my talk is the last one today, in Windsor (5th floor). #QCon
David Chisnall (*Now with 50% more sarcasm!*)@[email protected]♥ 2↻ 02026-03-17 10:58 UTCView post →
What “qcon” means
WikipediaQuakeCon is a yearly convention held by ZeniMax Media to celebrate and promote the major franchises of id Software and other studios owned by ZeniMax. It includes a large, paid, bring-your-own-computer (BYOC) LAN party event with a competitive tournament held every year in Dallas, Texas, USA. The event, which is named after id Software's game Quake, sees thousands of gamers from all over the world attend every year to celebrate the company's gaming dynasty.
“QuakeCon” on Wikipedia (CC BY-SA) →#qcon across platforms
every network with a public tag surfaceFollow #qcon 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/qcon