#h2

Live, measured metrics for the hashtag #h2 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 #h2

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.

$11,525.77/ year · 2-character #name
Claim #h2 — $11,525.77/yr→
Annual, renews each year
Buy on hashtag.space (web3)
one-timepay once, yours for life
card via hashtag.org · tokens via hashtag.space
3
Uses / 7 days
Mastodon
3
Accounts / 7 days
Mastodon
40
Recent posts
Mastodon
~0/hr
Recent pace
Mastodon · last 40
0.1
Avg reactions / post
Mastodon · last 40

Day-by-day usage

measured · mas.to (Mastodon public tags API) · fetched 2026-07-27 02:25 UTC
0
07-21
1
07-22
1
07-23
0
07-24
1
07-25
0
07-26
0
07-27

3 uses by 3 unique accounts across the window. Real per-day counts, not estimates. Newest bar is today so far.

Related hashtags

measured · mas.to (Mastodon public search API) · fetched 2026-07-27 02:25 UTC
#h2g2
0 uses · 0 accounts / 7d
#24h2
0 uses · 0 accounts / 7d
#h2o
2 uses · 2 accounts / 7d
#h2h
1 uses · 1 accounts / 7d
#GreenH2
0 uses · 0 accounts / 7d
#25h2
0 uses · 0 accounts / 7d
#windows1125h2
0 uses · 0 accounts / 7d
#h2go
0 uses · 0 accounts / 7d
#22H2
0 uses · 0 accounts / 7d
#h2database
0 uses · 0 accounts / 7d
#h2medproject
0 uses · 0 accounts / 7d
#26h2
0 uses · 0 accounts / 7d

Live pulse

measured · mas.to (Mastodon tag timeline) · fetched 2026-07-27 02:25 UTC

Everything below is measured over the latest 40 public posts (spanning ~1066 hours).

Posting hours (UTC) — busiest: 04:00

00:0012:0023:00

Languages: English (27) · German (13)

Avg boosts / post: 0.6

Top of the latest posts

  • Scusi...is this the train to Sardegna? Trimmis, #Graubünden #Switzerland #ARST #Stadler #train #transport #h2

    Sérac@[email protected]♥ 2↻ 62026-06-24 16:53 UTCView post →

  • Much progress since 2024 when I attended a Symposium at MIT on #GeologicHydrogen, including #OrangeHydrogen, where manmade catalysts speed production. Katie Brigham #heatmapnews updates us on geologic hydrogen startups Anning and Hydrify, a

    KeithDPatch@[email protected]♥ 1↻ 12026-07-14 23:52 UTCView post →

  • #renewable #h2 #airplane its possible https://newatlas.com/aircraft/interview-h2fly-future-hydrogen-electric-aviation/

    Wordmark@wordmark♥ 1↻ 02026-06-30 22:12 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/h2