#h2g2
Live, measured metrics for the hashtag #h2g2 from the open social web. Every number carries a named source and the time it was fetched. Nothing is estimated.
Own #h2g2
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 2026-09-25 21:40 UTCNo measured public usage for #h2g2 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 2026-09-25 21:40 UTCNo related tags with measured usage found for #h2g2.
Live pulse
measured · Mastodon tag timeline · fetched 2026-09-25 21:40 UTCNo recent public posts found for #h2g2 on Mastodon. Nothing measured, so nothing shown.
What “h2g2” means
WikipediaMercury is a chemical element; it has symbol Hg and atomic number 80. It is commonly known as quicksilver. A heavy, silvery d-block element, mercury is the only metallic element that is known to be liquid at standard temperature and pressure. As well as having the lowest freezing point, mercury has the lowest boiling point and subsequently the narrowest liquid state range of any metal at standard conditions.
“Mercury (element)” on Wikipedia (CC BY-SA) →#h2g2 across platforms
every network with a public tag surfaceFollow #h2g2 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/h2g2