Four reports, on a schedule, from measurements anyone can check.

Each edition has a live page that updates as the measurements do, an Atom feed, signed JSON, and a written post for each issue. Figures come from the same records the API serves; nothing in an edition is estimated.

The four editions

How the editions are made

• Every figure links to the record it came from; the records are signed and verify offline with /crawlcheck-verify.mjs.
• Monthly editions seal after the month closes (UTC) and are never edited afterwards; a correction is a new, dated note.
• No site under investigation is named, ever. Agents and platforms are named only where the record names them.

All findings and guides: /blog · the full Atom feed · the open data: /data.