#HTTP404

Live, measured metrics for the hashtag #HTTP404 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 #http404

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.

$240.06/ year · 7-character #name
Claim #http404 — $240.06/yr→Buy on hashtag.space (web3)
card via hashtag.org · tokens via hashtag.space
0
Uses / 7 days
Mastodon
0
Accounts / 7 days
Mastodon
14
Recent posts
Mastodon
~0/hr
Recent pace
Mastodon · last 14
0.5
Avg reactions / post
Mastodon · last 14
—
Reddit posts / month
Reddit search
—
Open-web mentions
hashtag.org Firehose

Day-by-day usage

measured · fosstodon.org (Mastodon public tags API) · fetched 2026-09-30 12:46 UTC
0
09-24
0
09-25
0
09-26
0
09-27
0
09-28
0
09-29
0
09-30

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 2026-09-30 12:46 UTC
#404http
0 uses · 0 accounts / 7d

Live pulse

measured · fosstodon.org (Mastodon tag timeline) · fetched 2026-09-30 12:46 UTC

Everything below is measured over the latest 14 public posts (spanning ~54823 hours).

Posting hours (UTC) — busiest: 19:00

00:0012:0023:00

Languages: English (10) · German (3) · Italian (1)

Avg boosts / post: 1

Top of the latest posts

  • HTTP Cheat Sheet #HTTP #https #HTTP404 #httpurlconnection #httpclient #httprequest #httpcode #web #webdev #cheatsheet #cheatsheets #httpstatuscodes

    DeaDSouL :fedora:@DeaDSouL♥ 5↻ 22023-03-24 06:05 UTCView post →

  • #404 Jacke not found. #http404 #clt #clt2023 #clt23

    rugk@[email protected]♥ 1↻ 12023-03-12 09:53 UTCView post →

  • I'm so sorry for this webserver... Depressed webservers are a thing in our society. Have a heart and listen to them now and then: https://plantuml.com/failfail #PlantUML #PUML #404 #HTTP404

    ruffy@[email protected]♥ 1↻ 12021-09-21 19:17 UTCView post →

What “http404” means

Wiktionary · Wikipedia

http

  • nounAlternative spelling of HTTP
Full entry on Wiktionary →

HTTP is an application layer protocol in the Internet protocol suite for distributed, collaborative, hypermedia information systems. HTTP is the foundation of data communication for the World Wide Web, where hypertext documents include hyperlinks to other resources that the user can easily access, for example by a mouse click or by tapping the screen in a web browser.

“HTTP” on Wikipedia (CC BY-SA) →

#http404 across platforms

every network with a public tag surface

Follow #http404 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/http404