#sffh

Live, measured metrics for the hashtag #sffh 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 #sffh

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.

$2,449.80/ year · 4-character #name
Claim #sffh — $2,449.80/yr→Buy on hashtag.space (web3)
card via hashtag.org · tokens via hashtag.space
4
Uses / 7 days
Mastodon
4
Accounts / 7 days
Mastodon
40
Recent posts
Mastodon
~0/hr
Recent pace
Mastodon · last 40
0.2
Avg reactions / post
Mastodon · last 40
—
Reddit posts / month
Reddit search
—
Open-web mentions
hashtag.org Firehose

Day-by-day usage

measured · mastodon.social (Mastodon public tags API) · fetched 2026-11-12 21:22 UTC
0
11-06
1
11-07
0
11-08
1
11-09
0
11-10
1
11-11
1
11-12

4 uses by 4 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 2026-11-12 21:22 UTC
#sffhistory
0 uses · 0 accounts / 7d
#sffhorror
0 uses · 0 accounts / 7d
#sffhmovies
0 uses · 0 accounts / 7d
#sffhbooks
0 uses · 0 accounts / 7d
#SFFHCommunity
0 uses · 0 accounts / 7d

Live pulse

measured · mastodon.social (Mastodon tag timeline) · fetched 2026-11-12 21:22 UTC

Everything below is measured over the latest 40 public posts (spanning ~3042 hours).

Posting hours (UTC) — busiest: 16:00

00:0012:0023:00

Languages: English (40)

Avg boosts / post: 0.3

Top of the latest posts

  • Very excited to announce that this self-started anthology I’m in has been picked up by the amazing small press Guardbridge Books https://bsky.app/profile/guardbridgebooks.bsky.social/post/3mxrd4qpuqs2l #sff #sffh #fantasy #sciencefiction #s

    Paracyclops@oarditi♥ 4↻ 12026-10-16 10:03 UTCView post →

  • I keep forgetting how to social media, but this is what it’s for right? I had a flash story in the Fantasycon program, but only found out when I was back home reading it in bed! And I’ve got a poem in the latest BFS Horizons (British Fantas

    Paracyclops@oarditi♥ 1↻ 02026-10-16 09:55 UTCView post →

  • Application for a pitch session at Can*Con was approved! But I have to catch a train at that exact time, sadness. I'll publish this thesis one day... #SFFH #CanCon #thesis @academicchatter #dissertation #academia #phd #sciencefiction #Canad

    Ariel Kroon@arielkroon@wandering.shop♥ 1↻ 12026-09-19 00:55 UTCView post →

#sffh across platforms

every network with a public tag surface

Follow #sffh 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/sffh