#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.

hashtag.org network · sponsored

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.

$1,129.43/ year · 5-character #name
Claim #hcard — $1,129.43/yr→Buy on hashtag.space (web3)
card via hashtag.org · tokens via hashtag.space
0
Uses / 7 days
Mastodon
0
Accounts / 7 days
Mastodon
11
Recent posts
Mastodon
~0/hr
Recent pace
Mastodon · last 11
0.8
Avg reactions / post
Mastodon · last 11
—
Reddit posts / month
Reddit search
—
Open-web mentions
hashtag.org Firehose

Day-by-day usage

measured · fosstodon.org (Mastodon public tags API) · fetched 2026-10-19 13:11 UTC
0
10-13
0
10-14
0
10-15
0
10-16
0
10-17
0
10-18
0
10-19

0 uses by 0 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 2026-10-19 13:11 UTC

No related tags with measured usage found for #hcard.

Live pulse

measured · fosstodon.org (Mastodon tag timeline) · fetched 2026-10-19 13:11 UTC

Everything below is measured over the latest 11 public posts (spanning ~167845 hours).

Posting hours (UTC)

00:0012:0023:00

Languages: English (6) · German (5)

Avg boosts / post: 2.2

Top of the latest posts

  • #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

    Naty S@eclecticpassions♥ 5↻ 02026-02-17 19:02 UTCView post →

  • btw. I added every open format, that makes sense for a blogroll! #xfn #xoxo #opml #relopml #hcard #microformats

    Matthias Pfefferle@[email protected]♥ 3↻ 72026-09-07 10:32 UTCView post →

  • Is the #hcard "u-key" from #microformats just supposed to be straight up the armored public key? #indieweb

    Yarmo 🕊@yarmo♥ 1↻ 12020-07-13 18:41 UTCView post →

What “hcard” means

Wikipedia

hCard 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 surface

Follow #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.

X (Twitter) ↗Instagram ↗TikTok ↗Facebook ↗LinkedIn ↗YouTube ↗Threads ↗Bluesky ↗Mastodon ↗Reddit ↗Pinterest ↗Tumblr ↗

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