#postcrossing
Live, measured metrics for the hashtag #postcrossing from the open social web. Every number carries a named source and the time it was fetched. Nothing is estimated.
Own #postcrossing
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.social (Mastodon public tags API) · fetched 2026-09-26 04:40 UTCNo measured public usage for #postcrossing in the last 7 days. That is a real result, and a good one to know: this hashtag is wide open right now. We show a dash before we ever show a made-up number. Browse the trending index for tags with live measurements.
Related hashtags
measured · mastodon.social (Mastodon public search API) · fetched 2026-09-26 04:40 UTCNo related tags with measured usage found for #postcrossing.
Live pulse
measured · Mastodon tag timeline · fetched 2026-09-26 04:40 UTCNo recent public posts found for #postcrossing on Mastodon. Nothing measured, so nothing shown.
What “postcrossing” means
WikipediaPostcrossing is an online project for people to exchange postcards with other project members globally. The project's tag line is "send a postcard and receive a postcard back from a random person somewhere in the world!" The name Postcrossing is a union of the words postcard and crossing, and its origin "is loosely based on the Bookcrossing site".
“Postcrossing” on Wikipedia (CC BY-SA) →#postcrossing across platforms
every network with a public tag surfaceFollow #postcrossing 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/postcrossing