#hpkp
Live, measured metrics for the hashtag #hpkp from the open social web. Every number carries a named source and the time it was fetched. Nothing is estimated.
Own #hpkp
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 · mastodon.online (Mastodon public tags API) · fetched 2026-10-01 13:36 UTC0 uses by 0 unique accounts across the window. Real per-day counts, not estimates. Newest bar is today so far.
Related hashtags
measured · mastodon.online (Mastodon public search API) · fetched 2026-10-01 13:36 UTCNo related tags with measured usage found for #hpkp.
Live pulse
measured · mastodon.online (Mastodon tag timeline) · fetched 2026-10-01 13:36 UTCEverything below is measured over the latest 2 public posts (spanning ~2261 hours).
Posting hours (UTC)
Languages: English (2)
Avg boosts / post: 0
Top of the latest posts
#Tweetdeck is producing a #TLS handshake error, appearently by switching CA unexpectedly. I wonder what's weirder: That #Twitter can't event get #certificaqtes right, or that there are still websites out there using #HPKP
#RFC 7469 Public Key Pinning Extension for HTTP (HPKP) Validation for secure connections to protect against compromised certificate authorities, for example. https://en.wikipedia.org/wiki/HTTP_Public_Key_Pinning https://www.rfc-editor.org/r
#hpkp across platforms
every network with a public tag surfaceFollow #hpkp 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/hpkp