Content in the index comes from two places: the automatic discovery crawler, and the community (you submitting your own work).
The crawler starts from known CC0 / public-domain / 0BSD resource hubs and verifies every page it visits for a clear license signal. It respects robots.txt and only stores metadata + snippets. New finds appear in the chronological feed.
Over 60 source hubs are seeded to keep the discovery feed full of genuinely reusable work.
Anyone can submit their own CC0, public-domain, or 0BSD work from the homepage. Each submission is reviewed before appearing in the community feed.
Every indexed item records its detected license, the license URL (if machine-readable), and how it was detected. Takedowns are honored promptly — see the policy page.