#challenge

Live, measured metrics for the hashtag #challenge 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 #challenge

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.

$51.02/ year · 9-character #name
Claim #challenge — $51.02/yr→Buy on hashtag.space (web3)
card via hashtag.org · tokens via hashtag.space
35
Uses / 7 days
Mastodon
33
Accounts / 7 days
Mastodon
40
Recent posts
Mastodon
~0.2/hr
Recent pace
Mastodon · last 40
0
Avg reactions / post
Mastodon · last 40
—
Reddit posts / month
Reddit search
—
Open-web mentions
hashtag.org Firehose

Day-by-day usage

measured · mas.to (Mastodon public tags API) · fetched 2026-09-09 15:33 UTC
6
09-03
8
09-04
4
09-05
4
09-06
4
09-07
7
09-08
2
09-09

35 uses by 33 unique accounts across the window. Real per-day counts, not estimates. Newest bar is today so far.

Related hashtags

measured · mas.to (Mastodon public search API) · fetched 2026-09-09 15:33 UTC
#challenges
13 uses · 13 accounts / 7d
#challenger
6 uses · 5 accounts / 7d
#ChallengePoem
1 uses · 1 accounts / 7d
#ChallengeTour
0 uses · 0 accounts / 7d
#WritingChallenge
5 uses · 5 accounts / 7d
#ChallengerSeries
0 uses · 0 accounts / 7d
#challengeaccepted
3 uses · 3 accounts / 7d
#challengecup
0 uses · 0 accounts / 7d
#TheChallenge
0 uses · 0 accounts / 7d
#challenge_aero
0 uses · 0 accounts / 7d
#challenge_airlines
0 uses · 0 accounts / 7d
#challenged
0 uses · 0 accounts / 7d

Live pulse

measured · mas.to (Mastodon tag timeline) · fetched 2026-09-09 15:33 UTC

Everything below is measured over the latest 40 public posts (spanning ~166 hours).

Posting hours (UTC) — busiest: 09:00

00:0012:0023:00

Languages: English (30) · Spanish (3) · German (3) · French (1) · Lithuanian (1)

Avg boosts / post: 0.6

Top of the latest posts

  • Finally got my @trailofbits #swag for solving their what’s wrong #c #bug hunting #challenge! 🐛 https://web.archive.org/web/20260410015742/https://trailofbits.com/c-whats-wrong-challenge/

    raptor@[email protected]♥ 0↻ 22026-09-09 07:53 UTCView post →

  • Wednesday Weekly Blogging Challenge: Books Set Near Where I Live #WritingCommunity #WriterCommunity #BloggingCommunity #BloggerCommunity #WednesdayWeeklyBloggingChallenge #Challenge #Wednesday #blog #TyneAndWear #Newcastle #Books http://geo

    GeorgeLThomas@[email protected]♥ 0↻ 52026-09-09 03:56 UTCView post →

  • This Saturday our famous Seven Sisters Challenge returns. See website for full details! https://www.metropolitan-walkers.org.uk #ramblersgb #hiking #walking #challenge #autumn

    Metropolitan Walkers@[email protected]♥ 0↻ 12026-09-08 14:30 UTCView post →

What “challenge” means

Wiktionary

challenge/ˈtʃæl.əndʒ/

  • nounA confrontation; a dare.
  • verbTo invite (someone) to take part in a competition.
Full entry on Wiktionary →

#challenge across platforms

every network with a public tag surface

Follow #challenge 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/challenge