#errno
Live, measured metrics for the hashtag #errno from the open social web. Every number carries a named source and the time it was fetched. Nothing is estimated.
Own #errno
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 2026-09-26 13:13 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 2026-09-26 13:13 UTCLive pulse
measured · mas.to (Mastodon tag timeline) · fetched 2026-09-26 13:13 UTCEverything below is measured over the latest 6 public posts (spanning ~31143 hours).
Posting hours (UTC)
Languages: English (6)
Avg boosts / post: 23
Top of the latest posts
I got bored and looked for #anagrams of #errno codes. You might get EBADMSG if you're playing a BSD GAME. I got EHOSTDOWN once, but hey, WHO DOESN'T. To fix an EISCONN error takes you EONS IN C. But with ENETDOWN, you WON'T NEED long to fix
@chesheer No need to define its own constants for the standard file descriptors, either. Gaining <unistd.h> means that you gain STDERR_FILENO, STDIN_FILENO, et al.. That 'extern int errno' is actually wrong and needs to come out. A well kno
errno for AI: Funny list of common AI errors https://www.netmeister.org/blog/ai-errno.html #via:hackernews #parody #funny #errno #unix #llm #ai #+
What “errno” means
Wikipedia<errno.h> is a header file in the standard library of the C programming language. It defines macros for reporting and retrieving error conditions using the symbol errno.
“Errno.h” on Wikipedia (CC BY-SA) →#errno across platforms
every network with a public tag surfaceFollow #errno 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/errno