#sciencefiction

Live, measured metrics for the hashtag #sciencefiction 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 #sciencefiction

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.

$5.00/ year · 14-character #name
Claim #sciencefiction — $5.00/yr→Buy on hashtag.space (web3)
card via hashtag.org · tokens via hashtag.space
216
Uses / 7 days
Mastodon
156
Accounts / 7 days
Mastodon
40
Recent posts
Mastodon
~1.3/hr
Recent pace
Mastodon · last 40
0.1
Avg reactions / post
Mastodon · last 40
—
Reddit posts / month
Reddit search
—
Open-web mentions
hashtag.org Firehose

Day-by-day usage

measured · fosstodon.org (Mastodon public tags API) · fetched 2026-09-08 01:00 UTC
46
09-02
33
09-03
44
09-04
31
09-05
30
09-06
31
09-07
1
09-08

216 uses by 156 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 2026-09-08 01:00 UTC
#sciencefictionart
1 uses · 1 accounts / 7d
#sciencefictioncartoons
0 uses · 0 accounts / 7d
#sciencefictionseries
0 uses · 0 accounts / 7d
#sciencefictiondoublefeature
0 uses · 0 accounts / 7d
#sciencefictioni
0 uses · 0 accounts / 7d
#sciencefictionbooks
0 uses · 0 accounts / 7d
#sciencefictionconvention
0 uses · 0 accounts / 7d
#sciencefictionfantasy
2 uses · 2 accounts / 7d
#sciencefictioncomics
1 uses · 1 accounts / 7d
#ScienceFictionManga
1 uses · 1 accounts / 7d
#sciencefictionmovies
5 uses · 3 accounts / 7d
#sciencefictionmusic
1 uses · 1 accounts / 7d

Live pulse

measured · fosstodon.org (Mastodon tag timeline) · fetched 2026-09-08 01:00 UTC

Everything below is measured over the latest 40 public posts (spanning ~30 hours).

Posting hours (UTC) — busiest: 05:00

00:0012:0023:00

Languages: English (30) · French (5) · German (3) · Italian (1)

Avg boosts / post: 1.6

Top of the latest posts

  • Let's talk about the classics reads and the Golden Oldies of #sciencefiction https://wrywriter.ca/posts/scifi-books-the-golden-oldies

    Alexandra :neobread_mug:@[email protected]♥ 2↻ 22026-09-07 15:28 UTCView post →

  • #WordWeavers 2026.09.07 — Describe a moment when one of your characters realizes they’ve made a terrible mistake. The character thinks someone had keeled over in their living room, but when she kneels beside him, her knees end up in somethi

    RS, Author, Novelist, Prosaist@[email protected]♥ 1↻ 22026-09-07 17:32 UTCView post →

  • GMBC ep47 - The Superpowered Book Club: Unpacking the Complexities of Black Hammer #BlackHammer #jefflemire #graphicnovel #graphicnovelseries #superheroes #horrorgraphicnovel #sciencefiction #fantasy #comics #ttrpgpodcast https://www.k-squa

    Game Master's Book Club@[email protected]♥ 0↻ 02026-09-08 00:18 UTCView post →

#sciencefiction across platforms

every network with a public tag surface

Follow #sciencefiction 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/sciencefiction