#postmark
Live, measured metrics for the hashtag #postmark from the open social web. Every number carries a named source and the time it was fetched. Nothing is estimated.
Own #postmark
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 2026-11-10 22:08 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 2026-11-10 22:08 UTCLive pulse
measured · mastodon.social (Mastodon tag timeline) · fetched 2026-11-10 22:08 UTCEverything below is measured over the latest 31 public posts (spanning ~79847 hours).
Posting hours (UTC) — busiest: 22:00
Languages: English (27) · Chinese (1) · Spanish (1) · French (1)
Avg boosts / post: 3.7
Top of the latest posts
Nearly 150,000 #MailBallots rejected in #California primary despite efforts to count every vote. Lawmakers concerned about #USPS #postmark changes. In January, a group of mostly Democratic US senators sent a letter to the USPS, alarmed that
The trump-compliant #USPS has changed the rules for the #postmark date of mail. As of last Wednesday, December 24, the postmark date is the day they #process your mail piece, NOT the day you drop it off. If you do #VBM, try to find a secure
Received today on a @postcrossing card from the US. Behold the giant #bus-eating #dog! #postcard #PostageStamp #Philately #postmark #hashtag #WorldAltTextChampionshipEntry #postcrossing
What “postmark” means
Wiktionary · Wikipediapostmark
- nounA marking made by a postal service on a letter, package, postcard or the like, usually indicating the place where and the date and time when the item was received or processed for the first time, and often serving to cancel a postage stamp.
- verbTo apply a postmark on.
A postmark is a postal marking made on an envelope, parcel, postcard or the like, indicating the place, date and time that the item was delivered into the care of a postal service, or sometimes indicating where and when received or in transit. Modern postmarks are often applied simultaneously with the cancellation or killer that marks postage stamps as having been used. Sometimes a postmark alone is used to cancel stamps, and the two terms are often used interchangeably. Postmarks may be applied
“Postmark” on Wikipedia (CC BY-SA) →#postmark across platforms
every network with a public tag surfaceFollow #postmark 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/postmark