#UID2
Live, measured metrics for the hashtag #UID2 from the open social web. Every number carries a named source and the time it was fetched. Nothing is estimated.
Own #uid2
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 2026-07-27 10:05 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 2026-07-27 10:05 UTCLive pulse
measured · fosstodon.org (Mastodon tag timeline) · fetched 2026-07-27 10:05 UTCEverything below is measured over the latest 4 public posts (spanning ~44722 hours).
Posting hours (UTC)
Languages: English (4)
Avg boosts / post: 0
Top of the latest posts
FYI: Truthset connects validated audiences to UID2 to cut ad waste by 60%: Truthset integrates Data Rated Audiences with Unified ID 2.0, letting media buyers match independently scored segments on The Trade Desk at census scale now. https:/
FYI: UID2 oversight gaps: CTV publisher's broken tokens went undetected for months: A CTV publisher passed invalid UID2 tokens for three months. The Trade Desk never flagged the errors, raising questions about UID2 oversight and governance.
UID2 oversight gaps: CTV publisher's broken tokens went undetected for months: A CTV publisher passed invalid UID2 tokens for three months. The Trade Desk never flagged the errors, raising questions about UID2 oversight and governance. http
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/uid2