This register covers rollouts announced in the Ranking section of the Google Search Status Dashboard, from November 2021 onward. It does not cover every algorithm change or unconfirmed fluctuation. Previously captured rollouts are retained if they leave Google’s index.
Boundaries come from each official incident record, not from the publication time of its completion message. Precise times are converted from Pacific time to UTC with daylight saving handled. A midnight boundary is conservatively retained as a date only; its original value remains in the JSON.
An exact duration is calculated only when both times are known. Otherwise we show the difference between Pacific calendar dates: it is neither an exact duration nor an inclusive count of affected days. French titles and update families are TSEP editorial classifications; the original Google title is retained.
Captures contain the received bytes compressed with gzip; SHA-256 applies to the decompressed document. Capture dates are later than announcements: they do not prove that the document existed on the rollout date.
Source verification and register edition are separate dates. Reading guidance is AI-assisted; no human signature is created without an attestation for this exact version. Coincident dates establish neither the cause of a traffic drop nor website conformity.
The timestamp proves that the captures existed no later than the signed time. It does not certify publication dates, content or human review. The ZIP contains the manifest, signed token and OpenSSL verification command.
Edition history
2026-11-06.1 · New reading by year and update family, search, FR/EN titles, separate incidents, CSV and Markdown exports. All 39 periods were rechecked without changes. Capture times, source values, method and timestamp verification bundle added.
2026-11-05 · Previous edition: 39 rollouts and their Google captures. Precise times distinguished from date-only boundaries.
Open data
Cite. Reuse.
Edikka — TSEP. « Google ranking update history ». Edition 2026-11-06.1. https://tsep-protocol.org/en/updates/google-ranking-updates. CC BY 4.0.
Exports retain Google identifiers, date precision, complete hashes and evidence links. CSV covers rollouts; JSON and Markdown also include the separate incidents.
CC BY 4.0 · TSEP factual compilation and editorial classifications. Source documents retain their original terms.
