#whosonfirst
Live, measured metrics for the hashtag #whosonfirst from the open social web. Every number carries a named source and the time it was fetched. Nothing is estimated.
Own #whosonfirst
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 · mas.to (Mastodon public tags API) · fetched 2026-10-03 15:22 UTC0 uses by 0 unique accounts across the window. Real per-day counts, not estimates. Newest bar is today so far.
Related hashtags
measured · mas.to (Mastodon public search API) · fetched 2026-10-03 15:22 UTCNo related tags with measured usage found for #whosonfirst.
Live pulse
measured · mas.to (Mastodon tag timeline) · fetched 2026-10-03 15:22 UTCEverything below is measured over the latest 25 public posts (spanning ~30763 hours).
Posting hours (UTC) — busiest: 22:00
Languages: English (24)
Avg boosts / post: 2.9
Top of the latest posts
Haha, classic Galbor #comic #comedy #whosonfirst #galbor
They keep doing this. #Oops #WhosOnFirst WASHINGTON (AP) — Most of the nearly 400 books pulled from US Naval Academy library in DEI purge are back on shelves in latest shift.
For the first time in my life I genuinely had a #WhosOnFirst experience, discussing #myParty #ukpolitics #ukpol I mean wtf who names a party something the colocate with is “and I’ll cry if I want to”?
#whosonfirst across platforms
every network with a public tag surfaceFollow #whosonfirst 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/whosonfirst