#postcard
Live, measured metrics for the hashtag #postcard from the open social web. Every number carries a named source and the time it was fetched. Nothing is estimated.
Own #postcard
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 2026-09-08 20:53 UTC27 uses by 18 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 2026-09-08 20:53 UTCLive pulse
measured · fosstodon.org (Mastodon tag timeline) · fetched 2026-09-08 20:53 UTCEverything below is measured over the latest 40 public posts (spanning ~263 hours).
Posting hours (UTC) — busiest: 17:00
Languages: English (13) · German (6) · French (1) · Italian (1)
Avg boosts / post: 1.3
Top of the latest posts
Got a #postcard recently from #Switzerland where the sender wrote the date as 2026.23.08. I can't even. I hereby declare Switzerland to be not a real country. Take note, @opencage @freyfogle! (aside from that it was a really nice card with
Or this awesome sweet squirrel by Matti #Pikkujämsä https://postkartenfundbuero.com/produkt/postcard-squirrel-kehvola/ #postcard #squirrel #autumn
La magia di aprire la posta e trovare ancora le cartoline ❤️ Ho la fortuna di avere un'amica splendida che me le manda ogni viaggio che fa. #postcard #amarcord #ricordi #eranobeitempi
What “postcard” means
Wiktionary · Wikipediapostcard/ˈpoʊstˌkɑɹd/
- nounA rectangular piece of thick paper or thin cardboard intended to be written on and mailed without an envelope. In the case of a picture postcard one side carries a picture or photograph.
- verbTo send a postcard to.
A postcard or post card is a piece of thick paper or thin cardboard, typically rectangular, intended for writing and mailing without an envelope. Non-rectangular shapes may also be used but are rare.
“Postcard” on Wikipedia (CC BY-SA) →#postcard across platforms
every network with a public tag surfaceFollow #postcard 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/postcard