#unbirthday
Live, measured metrics for the hashtag #unbirthday from the open social web. Every number carries a named source and the time it was fetched. Nothing is estimated.
Own #unbirthday
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 2026-08-01 07:14 UTC0 uses by 0 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 2026-08-01 07:14 UTCNo related tags with measured usage found for #unbirthday.
Live pulse
measured · fosstodon.org (Mastodon tag timeline) · fetched 2026-08-01 07:14 UTCEverything below is measured over the latest 5 public posts (spanning ~67834 hours).
Posting hours (UTC)
Languages: English (3) · German (1)
Avg boosts / post: 0.6
Top of the latest posts
Late birthday card sending... ;) 🐰 Have a great day Mastodon ! #mastoart #art #illustration #pencil #unbirthday
@bloodravenlib I sense an opening for a new product. The opposite of a celebration drink is an un-celebration drink. #GoshDarn2026 #UnHappyBirthday #UnBirthday
#50501Movement Protest Group: Book #Trump #MilitaryParade Tickets, Then Don't Show By Mandy Taheri Published Jun 12, 2025 "Celebration and protest are expected to collide on Saturday as President Donald Trump's 79th birthday, the U.S. Army'
What “unbirthday” means
WikipediaAn unbirthday is an event celebrated on all days of the year which are not a person's birthday. It is a neologism which first appeared in Lewis Carroll's 1871 novel Through the Looking-Glass. The concept gave rise to "The Unbirthday Song" in the 1951 animated feature film Alice in Wonderland.
“Unbirthday” on Wikipedia (CC BY-SA) →#unbirthday across platforms
every network with a public tag surfaceFollow #unbirthday 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/unbirthday