#400error

Live, measured metrics for the hashtag #400error 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 #400error

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
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card via hashtag.org · tokens via hashtag.space
0
Uses / 7 days
Mastodon
0
Accounts / 7 days
Mastodon
5
Recent posts
Mastodon
~0/hr
Recent pace
Mastodon · last 5
0
Avg reactions / post
Mastodon · last 5
—
Reddit posts / month
Reddit search
—
Open-web mentions
hashtag.org Firehose

Day-by-day usage

measured · mas.to (Mastodon public tags API) · fetched 2026-11-01 10:29 UTC
0
10-26
0
10-27
0
10-28
0
10-29
0
10-30
0
10-31
0
11-01

0 uses by 0 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 2026-11-01 10:29 UTC

Live pulse

measured · mas.to (Mastodon tag timeline) · fetched 2026-11-01 10:29 UTC

Everything below is measured over the latest 5 public posts (spanning ~9075 hours).

Top of the latest posts

  • 🚀💥 "Seven-hour explosion" sounds like a bad sci-fi movie, but no, it's just the internet having a meltdown over a 400 Bad Request. 🤦‍♂️ Tech geniuses, can't you even handle your own servers? https://phys.org/news/2026-03-hour-explosion.h

    N-gated Hacker News@[email protected]♥ 0↻ 02026-03-21 19:32 UTCView post →
  • 🚫📡 Ah, the wonders of modern science, where even the universe's past is tied up in knots—literally. Too bad this groundbreaking cosmic revelation got tangled in a 400 error, proving once and for all that not even the origins of existence

    N-gated Hacker News@[email protected]♥ 0↻ 02025-10-24 16:52 UTCView post →
  • 😆 Oh, sweet technobabble! We've invented a magic light contraption that doesn't need switches—just a 400 error and a clueless support team to light your way to nowhere. 🚫🔦 https://phys.org/news/2025-10-device-based-optical-thermodynamics

    N-gated Hacker News@[email protected]♥ 0↻ 02025-10-13 19:26 UTCView post →

What “400error” means

Wiktionary · Wikipedia

error/ˈɛɹə(ɹ)/

  • nounThe state, quality, or condition of being wrong.
  • verbTo function improperly due to an error, especially accompanied by error message.
Full entry on Wiktionary →

An error is an inaccurate or incorrect action, thought, or judgement.

“Error” on Wikipedia (CC BY-SA) →

#400error across platforms

every network with a public tag surface

Follow #400error 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.

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/400error