#onthatday

Live, measured metrics for the hashtag #onthatday from the open social web. Every number carries a named source and the time it was fetched. Nothing is estimated.

hashtag.org network · sponsored

Own #onthatday

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.

$51.02/ year · 9-character #name
Claim #onthatday — $51.02/yr→Buy on hashtag.space (web3)
card via hashtag.org · tokens via hashtag.space
0
Uses / 7 days
Mastodon
0
Accounts / 7 days
Mastodon
40
Recent posts
Mastodon
~0.1/hr
Recent pace
Mastodon · last 40
0
Avg reactions / post
Mastodon · last 40

Day-by-day usage

measured · mastodon.social (Mastodon public tags API) · fetched 2026-07-28 04:15 UTC
0
07-22
0
07-23
0
07-24
0
07-25
0
07-26
0
07-27
0
07-28

0 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 2026-07-28 04:15 UTC

No related tags with measured usage found for #onthatday.

Live pulse

measured · mastodon.social (Mastodon tag timeline) · fetched 2026-07-28 04:15 UTC

Everything below is measured over the latest 40 public posts (spanning ~576 hours).

Posting hours (UTC) — busiest: 08:00

00:0012:0023:00

Languages: English (40)

Avg boosts / post: 0

Top of the latest posts

  • 30.04. #OnThatDay 1979: Maastricht (Niederlande) und Koblenz besiegeln ihre Partnerschaft – europäischer Brückenschlag über die Grenzen. #Koblenz #Maastricht #Europa #Partnerstadt

    Koblenz am Eck@deutscheseck♥ 0↻ 02026-04-30 08:08 UTCView post →

  • 30.04. #OnThatDay 1917: Leo Mayer aus Koblenz wird mit seiner Familie 1942 deportiert. Ein Stolperstein erinnert an ihn. #Koblenz #Stolpersteine #Holocaust #Mayer

    Koblenz am Eck@deutscheseck♥ 0↻ 02026-04-30 08:07 UTCView post →

  • 30.04. #OnThatDay 2013: Tanz in den Mai in der Altstadt – über 20.000 Menschen feiern auf dem Görresplatz. #Koblenz #Altstadt #Tanz #Frühling

    Koblenz am Eck@deutscheseck♥ 0↻ 02026-04-30 08:07 UTCView post →

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/onthatday