Google Core Update History
Every ranking update and Search incident Google has confirmed on its own Search Status Dashboard, with the exact start and end timestamps Google published and the rollout duration calculated from them. Google reports when an update began and when it finished, but never how long it took — that column is computed here.
2026
| Update | Type | Started | Finished | Rollout | Affected |
|---|---|---|---|---|---|
| May 2026 core update | Core update | 15:40 UTC | 12:40 UTC | 11 days, 21h | Ranking |
| March 2026 core update | Core update | 09:00 UTC | 13:00 UTC | 12 days, 4h | Ranking |
2025
| Update | Type | Started | Finished | Rollout | Affected |
|---|---|---|---|---|---|
| December 2025 core update | Core update | 17:25 UTC | 19:00 UTC | 18 days, 1h | Ranking |
About this record
Every row comes from Google's Search Status Dashboard, which is where Google confirms the start and end of ranking updates. Times are as Google published them, in UTC. The Rollout column is calculated from those two timestamps — Google does not publish it.
Google's status API only exposes its most recent incidents, so this archive is not a complete history of every update since 2011. It begins at 26 August 2025 — the oldest incident the API was still returning when this archive was first built — and grows automatically as Google confirms new ones. Nothing here is written from memory or reconstructed from third-party reporting.
10 events on record · checked against Google's status API every 15 minutes