#BlackCat

Live, measured metrics for the hashtag #BlackCat 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 #blackcat

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.

$110.68/ year · 8-character #name
Claim #blackcat — $110.68/yr→Buy on hashtag.space (web3)
card via hashtag.org · tokens via hashtag.space
33
Uses / 7 days
Mastodon
31
Accounts / 7 days
Mastodon
40
Recent posts
Mastodon
~0.2/hr
Recent pace
Mastodon · last 40
2.8
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 2026-09-16 18:10 UTC
6
09-10
5
09-11
8
09-12
4
09-13
2
09-14
2
09-15
6
09-16

33 uses by 31 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 2026-09-16 18:10 UTC
#BlackCats
20 uses · 19 accounts / 7d
#BlackCatsRule
0 uses · 0 accounts / 7d
#blackcatpropaganda
5 uses · 4 accounts / 7d
#blackcatlove
1 uses · 1 accounts / 7d
#blackcatenergy
3 uses · 2 accounts / 7d
#blackcatsofmastodon
2 uses · 2 accounts / 7d
#blackcatsarebeautiful
0 uses · 0 accounts / 7d
#blackcatsarecool
0 uses · 0 accounts / 7d
#blackcatsmatter
0 uses · 0 accounts / 7d
#BlackCatAppreciationDay
0 uses · 0 accounts / 7d
#blackcatday
0 uses · 0 accounts / 7d
#blackcatlover
0 uses · 0 accounts / 7d

Live pulse

measured · fosstodon.org (Mastodon tag timeline) · fetched 2026-09-16 18:10 UTC

Everything below is measured over the latest 40 public posts (spanning ~226 hours).

Posting hours (UTC) — busiest: 07:00

00:0012:0023:00

Languages: English (29) · Spanish (2)

Avg boosts / post: 4.6

Top of the latest posts

  • Sticker of the Day! This is my sticker based on my painting, "Little Mlem"! https://www.joyousjoyness.com/products/close-encounters-collection-little-mlem-non-holographic-matte-sticker-close-up-of-a-silly-black-cat #art #sticker #blackcat #

    Joy@[email protected]♥ 41↻ 152026-09-11 19:00 UTCView post →

  • The boys. #cat #CatsOfMastodon #blackcat #Norwegianforestcat #ねこ #猫

    廃墟猫 🐈🌈🐈‍⬛🐈🐈‍⬛🐈‍⬛@[email protected]♥ 16↻ 92026-09-07 12:40 UTCView post →

  • Bewitched Kitty - just in time for spooky season! Available Here: https://1-lisas-baker.pixels.com/featured/bewitched-kitty-lisa-s-baker.html #bewitched #kitty #cat #cats #catsofMastodon #mastocats #caturday #feline #witch #halloween #spook

    Lisa S Baker Art (Back Up)@[email protected]♥ 10↻ 242026-09-09 12:16 UTCView post →

#blackcat across platforms

every network with a public tag surface

Follow #blackcat 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/blackcat