#blackholefriday
Live, measured metrics for the hashtag #blackholefriday from the open social web. Every number carries a named source and the time it was fetched. Nothing is estimated.
Own #blackholefriday
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.social (Mastodon public tags API) · fetched 2026-09-29 16:12 UTCNo measured public usage for #blackholefriday in the last 7 days. That is a real result, and a good one to know: this hashtag is wide open right now. We show a dash before we ever show a made-up number. Browse the trending index for tags with live measurements.
Related hashtags
measured · mastodon.social (Mastodon public search API) · fetched 2026-09-29 16:12 UTCLive pulse
measured · mastodon.social (Mastodon tag timeline) · fetched 2026-09-29 16:12 UTCEverything below is measured over the latest 40 public posts (spanning ~61531 hours).
Posting hours (UTC) — busiest: 18:00
Languages: English (33) · German (1)
Avg boosts / post: 15
Top of the latest posts
It's #BlackHoleFriday!!! Here's a thread about black holes from me, your friendly internet astronomer 😊 GIF by @SchnittGetsReal #astronomy #astrophysics #space #blackHoles #blackFriday #sciComm
A black hole's gravity is so powerful that not even light can escape it. 😱 But on this #BlackHoleFriday, we ask you not to fear the mysterious things in our universe and instead be open to their beauty. #NASAJPL
This black hole is on the move! Hubble determined the evidence of an isolated black hole roaming around the Milky Way. It's estimated that there are about 100 million black holes like this that are drifting through our galaxy: https://go.na
#blackholefriday across platforms
every network with a public tag surfaceFollow #blackholefriday 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/blackholefriday