#foo
Live, measured metrics for the hashtag #foo from the open social web. Every number carries a named source and the time it was fetched. Nothing is estimated.
Own #foo
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 · mastodon.online (Mastodon public tags API) · fetched 2026-10-24 02:09 UTC0 uses by 0 unique accounts across the window. Real per-day counts, not estimates. Newest bar is today so far.
Related hashtags
measured · mastodon.social (Mastodon public search API) · fetched 2026-10-24 02:09 UTCNo related tags with measured usage found for #foo.
Live pulse
measured · mastodon.online (Mastodon tag timeline) · fetched 2026-10-24 02:09 UTCEverything below is measured over the latest 40 public posts (spanning ~10561 hours).
Posting hours (UTC) — busiest: 16:00
Languages: English (19) · Hungarian (14) · German (3) · French (2) · Spanish (2)
Avg boosts / post: 0.4
Top of the latest posts
Even just a few decades ago, most people wouldn't know what "</>" or #foo would likely reference. Now to nearly everyone it's just "some html thing" and "tag".
Kung Fu Thai & Chinese Restaurant Expands Egg Foo Young Menu With Shrimp and Beef Selections https://www.diningandcooking.com/restaurants/16993/ #AND #Beef #chinese #egg #Expands #Foo #Fu #Kung #Menu #Restaurant #Selections #shrimp #Thai #T
Kung Fu Thai & Chinese Restaurant Introduces Certified Angus Beef Egg Foo Young to Its Menu https://www.diningandcooking.com/restaurants/16455/ #Angus #Beef #Certified #chinese #egg #Foo #Fu #Introduces #Its #Kung #Menu #Restaurant #Thai #T
What “foo” means
WikipediaThe terms foobar, foo, bar, boom, baz, quux, and others are used as metasyntactic variables in computer programming or computer-related documentation. They have been used to name entities such as variables, functions, and commands whose exact identity is unimportant and serve only to demonstrate a concept.
“Foobar” on Wikipedia (CC BY-SA) →#foo across platforms
every network with a public tag surfaceFollow #foo 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/foo