#header

Live, measured metrics for the hashtag #header 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 #header

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.

$520.70/ year · 6-character #name
Claim #header — $520.70/yr→Buy on hashtag.space (web3)
card via hashtag.org · tokens via hashtag.space
1
Uses / 7 days
Mastodon
1
Accounts / 7 days
Mastodon
40
Recent posts
Mastodon
~0/hr
Recent pace
Mastodon · last 40
0.3
Avg reactions / post
Mastodon · last 40
—
Reddit posts / month
Reddit search
—
Open-web mentions
hashtag.org Firehose

Day-by-day usage

measured · mastodon.online (Mastodon public tags API) · fetched 2026-11-10 10:53 UTC
0
11-04
0
11-05
0
11-06
0
11-07
0
11-08
0
11-09
1
11-10

1 uses by 1 unique accounts across the window. Real per-day counts, not estimates. Newest bar is today so far.

Related hashtags

measured · mastodon.online (Mastodon public search API) · fetched 2026-11-10 10:53 UTC
#HeaderImage
1 uses · 1 accounts / 7d
#headerhttp
0 uses · 0 accounts / 7d
#host_header
1 uses · 1 accounts / 7d
#headeraccordions
0 uses · 0 accounts / 7d
#headers
0 uses · 0 accounts / 7d
#headerfest
0 uses · 0 accounts / 7d
#MainHomepageHeader
0 uses · 0 accounts / 7d
#headerinjection
0 uses · 0 accounts / 7d
#headerdoc
0 uses · 0 accounts / 7d
#HeaderBidding
0 uses · 0 accounts / 7d
#NewHeaderPic
0 uses · 0 accounts / 7d
#header_bars
0 uses · 0 accounts / 7d

Live pulse

measured · mastodon.online (Mastodon tag timeline) · fetched 2026-11-10 10:53 UTC

Everything below is measured over the latest 40 public posts (spanning ~11433 hours).

Posting hours (UTC) — busiest: 13:00

00:0012:0023:00

Languages: English (20) · Japanese (11) · German (5) · Chinese (2) · Russian (1) · French (1)

Avg boosts / post: 0.6

Top of the latest posts

  • :boost_requested: :boost_ok: Also woundering what Header Image I should use... - These will be cropped tho... Poll down below! #CyberSix #Anime #vibes #art #background #header

    Adrian Seidelman@asm@mstdn.party♥ 4↻ 42026-04-02 17:03 UTCView post →

  • I've been working on creating a thumbnail/header graphic for Patreon, so that my fiction #writing posts actually stand out a bit. Taking inspiration from one of the artists NJ likes to watch short timelapse videos of. But only inspiration.

    FJ Brodie@FibroJedi@gamepad.club♥ 3↻ 02026-11-02 17:25 UTCView post →

  • New post: The Markdown Link no. 57 Among today’s links are markdown editors EdgeMark and Soot, plus a notes widget for markdown that’s only available for Android phones https://md-handbook.com/blog/markdown-link-no-57/ #markdown #markdowned

    md_handbook@md_handbook@mastodon.social♥ 2↻ 02026-10-15 04:53 UTCView post →

What “header” means

Wiktionary

header/ˈhɛdə/

  • nounThe upper portion of a page (or other) layout.
  • verbTo strike (a ball) with one's head.
Full entry on Wiktionary →

#header across platforms

every network with a public tag surface

Follow #header 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/header