#404pagenotfound

Live, measured metrics for the hashtag #404pagenotfound 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 #404pagenotfound

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 · 15-character #name
Claim #404pagenotfound$5.00/yrBuy on hashtag.space (web3)
card via hashtag.org · tokens via hashtag.space
0
Uses / 7 days
Mastodon
0
Accounts / 7 days
Mastodon
2
Recent posts
Mastodon
~0/hr
Recent pace
Mastodon · last 2
0
Avg reactions / post
Mastodon · last 2

Day-by-day usage

measured · fosstodon.org (Mastodon public tags API) · fetched 2026-07-30 14:01 UTC
0
07-24
0
07-25
0
07-26
0
07-27
0
07-28
0
07-29
0
07-30

0 uses by 0 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 2026-07-30 14:01 UTC

No related tags with measured usage found for #404pagenotfound.

Live pulse

measured · fosstodon.org (Mastodon tag timeline) · fetched 2026-07-30 14:01 UTC

Everything below is measured over the latest 2 public posts (spanning ~69031 hours).

Posting hours (UTC)

00:0012:0023:00

Languages: English (2)

Avg boosts / post: 0

Top of the latest posts

  • WSJ thinks it's Shakespeare's reincarnation... reviewing a building? 🤨🎭 Apparently, #architecture now requires a #sonnet and a soliloquy. Meanwhile, we'll just keep scrolling past the latest "404 Page Not Found" #masterpiece. 🏗️📜🚫 http

    N-gated Hacker News@[email protected]002025-11-14 07:32 UTCView post →
  • Not sure if @Gargron or @wolfteeth did this error gif but it gave me a nice laugh, this is why I love #mastodon. #404pagenotfound https://mastodon.technology/media/3nLmPUDi2UoLX5dqUs0

    HelpScooby@[email protected]002017-12-30 00:22 UTCView post →

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/404pagenotfound