#hcard
Live, measured metrics for the hashtag #hcard from the open social web. Every number carries a named source and the time it was fetched. Nothing is estimated.
Own #hcard
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 2026-09-27 19:48 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 2026-09-27 19:48 UTCNo related tags with measured usage found for #hcard.
Live pulse
measured · mastodon.social (Mastodon tag timeline) · fetched 2026-09-27 19:48 UTCEverything below is measured over the latest 24 public posts (spanning ~167845 hours).
Posting hours (UTC) — busiest: 18:00
Languages: English (17) · German (7)
Avg boosts / post: 1.4
Top of the latest posts
I built BlockRoll, a #blogroll plugin for #WordPress, and packed it with every open standard and format I could think of! https://github.com/pfefferle/wordpress-blockroll See it in action: https://notiz.blog/blogroll/ #opml #xfn #microforma
Today I am officially starting my IndieWeb adventure! I've been reading and hemming and hawing and procrastinating and today this is it! The goal is to have THE MOST BASIC PAGE (literally not even going to share it yet) up and running. I'll
#BurgeonLab #WeekNotes 015 is out! (late again 🤫) 2026: Week 07/52 (Feb 9 – 15) https://burgeonlab.com/weeknotes/2026/w07/ This is post 12 of #100DaysToOffload Progress: https://burgeonlab.com/tags/100daystooffload/ #blogging #blogs #small
What “hcard” means
WikipediahCard is a microformat for publishing the contact details of people, companies, organizations, and places, in HTML, Atom, RSS, or arbitrary XML. The hCard microformat does this using a 1:1 representation of vCard properties and values, identified using HTML classes and rel attributes.
“HCard” on Wikipedia (CC BY-SA) →#hcard across platforms
every network with a public tag surfaceFollow #hcard 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/hcard