#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.
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.
Day-by-day usage
measured · mas.to (Mastodon public tags API) · fetched 2026-11-07 06:45 UTC0 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 2026-11-07 06:45 UTCLive pulse
measured · mas.to (Mastodon tag timeline) · fetched 2026-11-07 06:45 UTCEverything below is measured over the latest 16 public posts (spanning ~54823 hours).
Posting hours (UTC) — busiest: 19:00
Languages: English (12) · German (3) · Italian (1)
Avg boosts / post: 1
Top of the latest posts
I love how 95% of personal websites can still serve URLs first seen 30 years ago, but anything owned by a company bigger than "some guy in his basement" treats any URL older than 12 months as an unreadable runestone inscription, throws its
#Köln so: "#Düsseldorf?? Watt is datt dann? Datt kenne mer nit." vgl. dazu den #Kölner #Stadtanzünder: * https://www.ksta.de/duesseldorf #404 🤡 🥳 * https://www.ksta.de/koeln 😝 #Kölle #Dusseldoof #Städtepartnerschaft #Rheinland #Kölsch #K
Show what? #Funny #Twitter #HTTP #HTTP404 #404
What “http404” means
Wiktionary · WikipediaHTTP 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 surfaceFollow #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.
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