#copyleft
Live, measured metrics for the hashtag #copyleft from the open social web. Every number carries a named source and the time it was fetched. Nothing is estimated.
Own #copyleft
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 2026-09-26 09:52 UTCNo measured public usage for #copyleft 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 2026-09-26 09:52 UTCNo related tags with measured usage found for #copyleft.
Live pulse
measured · Mastodon tag timeline · fetched 2026-09-26 09:52 UTCNo recent public posts found for #copyleft on Mastodon. Nothing measured, so nothing shown.
What “copyleft” means
Wiktionary · Wikipediacopyleft
- nounThe philosophy of using copyrights to enforce freedom of information, especially software source code.
- verbTo license under a copyleft license.
Copyleft is the legal technique of granting certain freedoms over copies of copyrighted works with the requirement that the same rights be preserved in derivative works. In this sense, freedoms refers to the use of the work for any purpose, and the ability to modify, copy, share, and redistribute the work, with or without a fee. Licenses which implement copyleft can be used to maintain copyright conditions for works ranging from computer software, to documents, art, and scientific discoveries. S
“Copyleft” on Wikipedia (CC BY-SA) →#copyleft across platforms
every network with a public tag surfaceFollow #copyleft 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/copyleft