#FirstInSeries
Live, measured metrics for the hashtag #FirstInSeries from the open social web. Every number carries a named source and the time it was fetched. Nothing is estimated.
Own #firstinseries
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 2026-10-20 18:33 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 2026-10-20 18:33 UTCNo related tags with measured usage found for #firstinseries.
Live pulse
measured · mastodon.online (Mastodon tag timeline) · fetched 2026-10-20 18:33 UTCEverything below is measured over the latest 26 public posts (spanning ~34138 hours).
Posting hours (UTC) — busiest: 10:00
Languages: English (26)
Avg boosts / post: 0.8
Top of the latest posts
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Looking for Mysteries? From cozy to hardboiled noir, 75 authors discounted their books just for you, check them out here: https://bf.sophiemaddon.com/mysterybookfair2/u2397ficw6 #CozyMysteries #CozyMystery #CozyMysteryBooks #Whodunnit #Book
Looking for Cozy Mysteries? Amateur detectives, cozy vibes, and mysteries worth solving, 25+ authors discounted their books just for you, check them out here: https://bf.sophiemaddon.com/cozycravings-sep/22jze2inz9 #CozyMysteries #CozyMyste
#firstinseries across platforms
every network with a public tag surfaceFollow #firstinseries 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/firstinseries