#html5
Live, measured metrics for the hashtag #html5 from the open social web. Every number carries a named source and the time it was fetched. Nothing is estimated.
Own #html5
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 2026-09-09 16:04 UTC4 uses by 4 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 2026-09-09 16:04 UTCLive pulse
measured · fosstodon.org (Mastodon tag timeline) · fetched 2026-09-09 16:04 UTCEverything below is measured over the latest 40 public posts (spanning ~1283 hours).
Posting hours (UTC) — busiest: 14:00
Languages: English (31) · Spanish (4) · Portuguese (2) · Italian (1) · Russian (1)
Avg boosts / post: 1
Top of the latest posts
Fifteenth edition of #js13k, web game development competition where you have to fit your entire game into a 13 kilobyte zip, starts NOW! The 2026 #theme is... #UNICORNS AND #RAINBOWS! 🦄🌈 https://js13kgames.com/2026/blog/competition-has-st
Our long time participant, Victor Debone, is going to be an expert in #js13k 2026 yet again! https://js13kgames.com/2026/experts#victor #gamedev #gamedevjs #indiedev #indiegames #JavaScript #HTML5 #expert #judge
Less than 10 DAYS left to start #js13k 2026! https://js13kgames.com/2026/ One month is plenty of time, so the first days after the theme announcement can be spent on brainstorming. #gamedev #gamejam #compo #competition #codegolf #challenge
What “html5” means
WikipediaHypertext Markup Language (HTML) is the standard markup language for documents designed to be displayed in a web browser. It defines the content and structure of web content. It is often assisted by technologies such as Cascading Style Sheets (CSS) and scripting languages such as JavaScript.
“HTML” on Wikipedia (CC BY-SA) →#html5 across platforms
every network with a public tag surfaceFollow #html5 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/html5