#pubsubhubbub
Live, measured metrics for the hashtag #pubsubhubbub from the open social web. Every number carries a named source and the time it was fetched. Nothing is estimated.
Own #pubsubhubbub
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 · fosstodon.org (Mastodon public tags API) · fetched 2026-07-30 07:58 UTC0 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 07:58 UTCNo related tags with measured usage found for #pubsubhubbub.
Live pulse
measured · fosstodon.org (Mastodon tag timeline) · fetched 2026-07-30 07:58 UTCEverything below is measured over the latest 16 public posts (spanning ~125472 hours).
Posting hours (UTC) — busiest: 18:00
Languages: English (11) · German (4)
Avg boosts / post: 0.7
Top of the latest posts
Question: Is WebSub (formerly PubSubHubBub) still relevant these days? And if so, to what extent? Edit: I totally forgot to say why I'm asking. I'm cleaning up old blog settings and plugins, and wondering whether it's worth keeping the WebS
@michael_martinez here is an example: https://notiz.blog/2024/04/26/activitypub-the-evolution-of-rss/ No hashtags in the content at all but you see them if you search for the post in mastodon or if you search for #pubsubhubbub (you might ha
ActivityPub – The evolution of RSS Dave Winer (@davew) stellt (sich) auf seinem Blog und auf Mastodon die Frage: What does ActivityPub does that RSS doesn’t? und nimmt vorweg: Off the top of my head, it’s not the ability to syndicate, RSS a
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/pubsubhubbub