#lookup
Live, measured metrics for the hashtag #lookup from the open social web. Every number carries a named source and the time it was fetched. Nothing is estimated.
Own #lookup
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 2026-10-13 23:54 UTC6 uses by 6 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 2026-10-13 23:54 UTCLive pulse
measured · fosstodon.org (Mastodon tag timeline) · fetched 2026-10-13 23:54 UTCEverything below is measured over the latest 40 public posts (spanning ~1377 hours).
Posting hours (UTC) — busiest: 15:00
Languages: English (24) · French (1) · German (1)
Avg boosts / post: 1.4
Top of the latest posts
I realize the space station passes overhead a few times a week, but each time I see that tiny bright dot race across the sky, it amazes me that people are living up there. #lookup #space #spacestation #iss
🌕 Look up on August 27! A deep partial lunar eclipse is coming to the Bay Area, with 96% of the Moon slipping into Earth’s shadow at maximum eclipse. For San Jose and the Bay Area: 🌕 Moonrise: 7:35 p.m. 🌑 Maximum eclipse: 9:12 p.m. 🌕 Pa
Top of the Eastern Veil Nebulae. Formed when a supernova exploded 10-20,000 years ago. Taken from my backyard in Nashville, 2.5 hrs exposure. #astronomy #space #astrophotography #lookup
What “lookup” means
Wiktionary · WikipediaIn computer science, a lookup table (LUT) is an array that replaces runtime computation of a mathematical function with a simpler array indexing operation, in a process termed as direct addressing. The savings in processing time can be significant, because retrieving a value from memory is often faster than carrying out an "expensive" computation or input/output operation. The tables may be precalculated and stored in static program storage, calculated as part of a program's initialization phase
“Lookup table” on Wikipedia (CC BY-SA) →#lookup across platforms
every network with a public tag surfaceFollow #lookup 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/lookup