Which Google update hit you?
Google was actively rolling out a ranking update on 29.5% of all days since January 2022, close to one day in three. Enter your drop date to see which rollout it lands inside.
Most update lists show only a start date. This checks your date against the full rollout window, because a drop three weeks after a core update began is still that core update.
How this works / source
Every update, start date and rollout duration on this page is taken from Google’s own Search Status Dashboard, which is the only authoritative record of confirmed ranking updates. Nothing here is estimated, modelled or inferred.
What we added. The dashboard publishes a start date and a rollout duration. Most update-history pages republish only the start date, which is why a drop that lands three weeks later looks unexplained. We computed the end of every rollout from the published duration, so a date can be matched against the full window it actually falls in.
How the 29.5% figure was calculated. We marked every calendar day between 1 January 2022 and 31 August 2026 on which at least one confirmed rollout was active, counting a day once even when rollouts overlapped. 503 of 1,704 days qualified. Per calendar year: 2022 30%, 2023 41%, 2024 31%, 2025 21%, 2026 to 31 August 22%.
What this does not tell you. An overlap is not causation. It tells you a rollout was live when you dropped, which is where to start looking. Google also makes changes it never announces, so a date with no match is not evidence that Google did nothing.
Figures cover 41 confirmed updates from 3 November 2021 to 18 August 2026. Core updates only: 16 updates, mean rollout 17.4 days, longest 45 days (March 2024 core update). Across all 41: mean rollout 15.2 days.
Last verified: 1 September 2026 · Source: Google Search Status Dashboard, ranking updates history
Questions
My drop matches a core update. Does that mean the core update caused it?
Not on its own. It means a rollout was live at the time, which makes it the first thing to rule in or out. Check whether the loss is spread across the site or concentrated on particular pages, and whether competitors moved in the same direction on the same days.
Nothing matched my date. What now?
Look at your own site first: a migration, a template change, an indexing problem, lost backlinks, or a seasonal pattern. Google also ships unannounced changes, so no match is a hint, not an alibi.
Why do some dates match two updates at once?
Google frequently overlaps rollouts. March 2024 ran a core update and a spam update from the same day, and the core update took 45 days. When two are live at once, neither can be isolated from ranking data alone.
Is the helpful content update still a thing?
As a separate update, no. Google folded the helpful content system into its core ranking systems in March 2024, which is why there has been no standalone helpful content update since. Its signals now arrive inside every core update.
“Which Google Update Hit You? Rollout Window Matcher”, SEORevive. https://seorevive.in/tools/google-update-matcher
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