#xhtml2
Live, measured metrics for the hashtag #xhtml2 from the open social web. Every number carries a named source and the time it was fetched. Nothing is estimated.
Own #xhtml2
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 2026-09-30 18:13 UTC0 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 2026-09-30 18:13 UTCLive pulse
measured · mastodon.social (Mastodon tag timeline) · fetched 2026-09-30 18:13 UTCEverything below is measured over the latest 5 public posts (spanning ~21232 hours).
Posting hours (UTC)
Languages: English (3) · French (2)
Avg boosts / post: 1.2
Used together with
Top of the latest posts
I just saw Steven Pemberton on tv and was reminded of the time I almost hit him on his bike with my car in Amsterdam. Entirely unintentional and nothing at all to do with my personal opinion of #XHTML2, of course 😐
(il n’y a pas de <base /> dans #xhtml2 au fait)
The more I read the #XHTML2 spec the more my despise for the #WHATWG grows. Did you know that XHTML2 had client-side includes, with fallback?
What “xhtml2” means
WikipediaExtensible HyperText Markup Language (XHTML) is part of the family of XML markup languages which mirrors or extends versions of the widely used HyperText Markup Language (HTML), the language in which Web pages are formulated.
“XHTML” on Wikipedia (CC BY-SA) →#xhtml2 across platforms
every network with a public tag surfaceFollow #xhtml2 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/xhtml2