Google algorithm update statistics at a glance
| Category | Statistic | Source |
|---|---|---|
| Frequency | Google confirmed 10 ranking updates in 2022, 9 in 2023, 7 in 2024, 4 in 2025 and 7 so far in 2026 | Google Search Status Dashboard, 2026 (computed) |
| Frequency | Google made 4,781 launches to Search in 2023 from more than 700,000 experiments | Google How Search Works, 2023 |
| Duration | The median confirmed update took 14.0 days to roll out; core updates 14.5 days, spam updates 7.1 days | Google Search Status Dashboard, 2026 (computed) |
| Duration | The March 2024 core update took 45 days, the longest on record | Google Search Status Dashboard, 2024 |
| Exposure | 29.0% of days from January 2022 to September 2026 had a confirmed update rolling out | Google Search Status Dashboard, 2026 (computed) |
| Exposure | Rollout days fell from 139 in 2023 to 80 in 2025; overlapping updates fell from 48 days to 0 | Google Search Status Dashboard, 2026 (computed) |
| Impact | Google reported 45% less low-quality, unoriginal content after the March 2024 update, against 40% expected | Google, April 2024 |
| Impact | Google says more than 99% of visits from Search are spam-free | Google Search Central, 2023 |
| Volatility | 24.1% of top-10 pages vanished from the top 100 after the March 2026 updates, against 14.7% in December 2025 | SE Ranking, April 2026 |
| Winners | Reddit lost 13.74% of US visibility in the May 2026 core update; YouTube gained 16.32% | SISTRIX, June 2026 |
| Winners | Sites with five winner traits had a 69.7% win rate; sites with none, 13.5% | Zyppy, April 2026 |
| Recovery | 22% of about 400 sites hit by the September 2023 helpful content update rose 20% or more a year later | Search Engine Roundtable, November 2024 |
| Context | More than 90% of UK searches happen on Google | CMA, October 2025 |
How often does Google release algorithm updates?
Google confirmed between 4 and 10 ranking updates a year on its Search Status Dashboard from 2022 to 2025, and 7 so far in 2026, while making thousands of smaller, unannounced changes to Search every year.
| Year | Confirmed updates | Core | Spam | Other named updates | Days with a rollout | Share of year |
|---|---|---|---|---|---|---|
| 2022 | 10 | 2 | 2 | 6 | 109 | 29.9% |
| 2023 | 9 | 4 | 1 | 4 | 139 | 38.1% |
| 2024 | 7 | 4 | 3 | 0 | 114 | 31.1% |
| 2025 | 4 | 3 | 1 | 0 | 80 | 21.9% |
| 2026 (to 24 Sep) | 7 | 2 | 4 | 1 | 59 | 22.1% |
Source: Google Search Status Dashboard, Ranking history, pulled 24 September 2026, computed here. "Other named updates" are helpful content, product reviews, reviews, page experience and the February 2026 Discover update. Updates are counted by start year; rollout days by calendar day, US Pacific time.
| Statistic | Source |
|---|---|
| Google says it updates Google Search "thousands of times per year" and shares only the updates it considers notable. | Google Search Central, November 2023 |
| Google shared 10 notable updates in 2021 and another 10 in 2022, and expected about the same in 2023. | Google Search Central, November 2023 |
| Google ran more than 700,000 experiments in 2023 that led to more than 4,000 improvements to Search. | Google How Search Works, 2023 data |
| Google made 4,781 launches of approved changes to Search in 2023. | Google How Search Works, 2023 data |
| Google ran 719,326 search quality tests and 124,942 side-by-side experiments with external raters in 2023. | Google How Search Works, 2023 data |
| Google describes core updates as significant, broad changes to its ranking systems that happen "several times a year". | Google Search Central, core updates documentation, 2026 |
| The dashboard's Ranking history lists 42 entries from 3 November 2021 to 24 September 2026: 40 named updates and 2 ranking incidents. | Google Search Status Dashboard, 2026 |
Most Google algorithm update statistics online quote tracker readings, but the dashboard is the primary record, and its per-year count matches Google's own statement. Google said it shared 10 updates in 2022, and the dashboard lists exactly 10 for that year. The dashboard also shows why the named "other" column went to zero in 2024: with the March 2024 core update Google said helpfulness is now judged by its core ranking systems rather than one separate system, and the last separately announced reviews update was in November 2023. When that one finished, Google wrote on the dashboard that the reviews system was "now being improved at a regular and ongoing pace" and that it would "no longer be posting about future updates" there. Google's ranking systems guide now files the helpful content system under "Retired systems". So the drop from six named non-core updates in 2022 to zero in 2024 is a change in labelling. It doesn't mean Google stopped changing those parts of ranking.
Four confirmed updates in 2025 is the quietest year on the dashboard, and 2026 is already back to seven, mostly spam updates. The ratio matters more than the total: 4,781 launches in 2023, the latest year Google has published, against 4 to 10 announcements means Google tells you about a tiny fraction of what changes. In 2023 alone, 9 announcements against 4,781 launches is about one in 530. If you only track the announced ones, you're reading the headlines of a newspaper that prints every day.
The next question is how long each of those announced updates keeps the ground moving.
How long do Google algorithm updates take to roll out?
The median confirmed Google ranking update took 14.0 days to roll out between November 2021 and September 2026, across 39 completed updates on the Search Status Dashboard; core updates took a median 14.5 days and spam updates 7.1.
| Statistic | Source |
|---|---|
| The March 2024 core update rolled out from 5 March to 19 April 2024, 45 days in total. Google's announcement said it "may take up to a month". | Google Search Status Dashboard, 2024 |
| The March 2026 spam update finished in 19 hours and 30 minutes, the shortest rollout on the dashboard. | Google Search Status Dashboard, 2026 |
| Google released the September 2026 spam update on 24 September 2026 and said the rollout may take up to two weeks. | Google Search Status Dashboard, September 2026 |
| 9 of the 13 core updates since March 2023 whose first dashboard post gave a maximum rollout time finished inside it; all 5 since January 2025 did. | Google Search Status Dashboard, 2026 (computed) |
| Google recommends waiting at least a full week after a core update completes before comparing Search Console data, then comparing that week with a week before the rollout started. | Google Search Central, core updates documentation, 2026 |
| The Search Status Dashboard launched on 14 December 2022 for crawling, indexing and serving incidents. Google added the Ranking area on 21 March 2023. | Google Search Central, December 2022 |
| Issues and updates stay on the dashboard's Summary and History pages for five years. | Google Search Central, dashboard help, 2026 |
Core rollouts have not become shorter. The seven core updates that started between 2021 and 2023 had a median of 14.0 days; the nine from 2024 to 2026 had a median of 16.7 days, pulled up by the 45-day March 2024 update and the 23-day November 2024 one. Spam updates range from under a day to 29 days (the December 2022 link spam update).
Google's own forecasts have become a better guide. Of the 13 core updates since March 2023 where Google's first dashboard post gave a maximum ("up to 2 weeks", "up to a month"), 9 finished inside it, by our count. The four that ran over were August 2023 (16 days against two weeks), November 2023 (26 days against two weeks), March 2024 (45 days against a month) and November 2024 (24 days against two weeks). All five core updates since January 2025 finished inside the window Google announced, and the two in 2026 took about 12 days each against a stated two weeks.
Google's advice adds a week to every rollout before you should judge anything. A typical core update therefore costs you three weeks of not knowing, and the March 2024 one cost almost two months. I'd plan reporting around that: no conclusions in a monthly report whose month overlaps a core rollout.
Rollout length only matters in aggregate, which is what the next section counts.
How much of the year is Google rolling out an update?
Google had a confirmed ranking update rolling out on 29.0% of all days from 1 January 2022 to 24 September 2026, peaking at 38.1% of 2023 and falling to 21.9% in 2025, based on start and end timestamps from the Search Status Dashboard.
| Statistic | Source |
|---|---|
| 501 of 1,728 calendar days between 1 January 2022 and 24 September 2026 had at least one confirmed ranking update rolling out. | Google Search Status Dashboard, 2026 (computed) |
| 2023 had 139 rollout days, 38.1% of the year, and 48 days when two confirmed updates rolled out at once. | Google Search Status Dashboard, 2026 (computed) |
| 2025 had 80 rollout days, 21.9% of the year, and no overlapping updates. 2026 so far has 59 rollout days of 267 and no overlaps. | Google Search Status Dashboard, 2026 (computed) |
| Core updates alone accounted for 98 of the 114 rollout days in 2024. | Google Search Status Dashboard, 2026 (computed) |
| The median gap between the start of one core update and the next is 108 days, about three and a half months. The shortest gap was 28 days (October to November 2023). | Google Search Status Dashboard, 2026 (computed) |
| The longest stretch with no confirmed update rolling out lasted 118 days, between the end of the April 2023 reviews update on 25 April and the start of the August 2023 core update on 22 August 2023. | Google Search Status Dashboard, 2026 (computed) |
The overlap numbers tell a story Google half-confirmed itself. In its November 2023 Q&A, Google said it tries to separate notable updates so site owners can tell which system caused a change. In 2023 four updates ran almost back to back in October and November. Since the March 2024 core and spam updates finished, no two confirmed updates have overlapped at all.
This is the most useful number on the page for anyone who reports on organic traffic. In two of the five years, an update was rolling out on more than 30% of days, which makes the "was it an update?" question close to a coin toss. The cleaner schedule since 2025 is good news: a drop that lines up with a rollout now points to one system, not three.
Timing tells you when to look; Google's own impact claims tell you what it was aiming at.
What has Google said its algorithm updates achieved?
Google said the March 2024 core update cut low-quality, unoriginal content in search results by 45%, beating the 40% it had forecast when the update launched on 5 March 2024.
| Statistic | Source |
|---|---|
| On 5 March 2024 Google said it expected the March 2024 core update, together with earlier work, to "reduce low-quality, unoriginal content in search results by 40%". | Google, Elizabeth Tucker, March 2024 |
| In an update dated 26 April 2024, Google reported that users "now see 45% less low-quality, unoriginal content in search results" after the rollout completed on 19 April. | Google, April 2024 |
| Google's SpamBrain system detected 5 times more spam sites in 2022 than in 2021, and 200 times more than when it launched. | Google Search Central, April 2023 |
| Google says SpamBrain keeps more than 99% of visits from Search spam-free. | Google Search Central, April 2023 |
| Google cut clicks on scam sites by 50% in 2022 compared with 2021. | Google Search Central, April 2023 |
| On 5 March 2024 Google called the March 2024 core update "a more complex update than our usual core updates" and said there is "no longer one signal or system" for judging helpfulness. | Google Search Central, March 2024 |
| Google's site reputation abuse policy took effect on 5 May 2024, two months after Google announced it. | Google Search Central, March 2024 |
| On 19 November 2024 Google changed the site reputation abuse policy to apply "regardless of whether there is first-party involvement or oversight of the content". | Google Search Central, November 2024 |
| Google said the August 2024 core update "takes into account the feedback we've heard from some creators and others over the past few months". | Google Search Central, August 2024 |
The March 2024 announcement also introduced three spam policies (expired domain abuse, scaled content abuse, site reputation abuse), per the Google Search Central post of 5 March 2024. Google has not published a webspam report since the April 2023 edition covering 2022, so the SpamBrain numbers are DATED and remain the latest Google has shared.
Google's wording on single core updates is usually brief, which makes the exceptions worth quoting. On 5 March 2024 Google Search Central called the March 2024 core update "a more complex update than our usual core updates, involving changes to multiple core systems", and said there's "no longer one signal or system" used to judge helpfulness. That sentence marks the end of the helpful content system as a separate classifier. Google's ranking systems guide confirms it "evolved and became part of our core ranking systems" in March 2024.
The August 2024 core update post of 15 August 2024 is the only recent one that answers critics directly. Google said the update "takes into account the feedback we've heard from some creators and others over the past few months" and repeated its aim to show "small or independent sites" that create useful, original content. Google put no number on that update, so nobody outside Google can check whether small sites gained.
Site reputation abuse is the one March 2024 policy with its own timeline. Google gave site owners two months' notice, and the policy took effect on 5 May 2024. On 19 November 2024 Google tightened the wording: publishing third-party content to exploit a host site's ranking signals now breaks the policy "regardless of whether there is first-party involvement or oversight of the content".
Google measures these outcomes with its own raters and its own definition of "low quality", so the 45% is a claim, not an audit. It is still the only impact number Google has put on a single update, and it tells you what the update was for. When a company forecasts 40%, reports 45% and nobody can check it, I read the direction and ignore the decimal.
Outside Google, the measuring is done by vendors, and they measure something different.
How do volatility trackers measure Google algorithm updates?
Third-party volatility trackers such as Semrush Sensor, MozCast, AccuRanker Grump and the SISTRIX Update Radar measure day-over-day ranking changes across fixed keyword sets; they detect movement, confirmed or not, and are vendor measurements rather than Google data.
| Statistic | Source |
|---|---|
| Semrush Sensor scores daily SERP volatility from 0 to 10: 0 to 2 is low, 2 to 5 normal, 5 to 8 high and 8 to 10 very high. It covers nine databases, including the US, UK, Germany and Japan. | Semrush, 2026 |
| MozCast tracks a hand-picked set of 10,000 keywords across 20 industry categories and 5 US cities every 24 hours. An uneventful day reads about 70°F. | Moz, 2026 |
| AccuRanker's Grump index averages rank changes across the top 30 results for about 1,000,000 high-volume keywords. | AccuRanker, 2026 |
| The SISTRIX Google Update Radar tracks 1 million SERPs every day and scores movement against the previous 90 days. | SISTRIX, March 2026 |
| In SE Ranking's 100,000-keyword panel, 14.7% of top-10 pages dropped out of the top 100 entirely in the December 2025 core update, against 24.1% after the March 2026 spam and core updates combined. | SE Ranking, April 2026 |
| SE Ranking found 66.8% of top-3 URLs changed position in the December 2025 core update and 79.5% in March 2026. | SE Ranking, April 2026 |
| 29.7% of new top-3 results in March 2026 came from outside the top 20, against 13% in December 2025. | SE Ranking, April 2026 |
| 82% of domains that disappeared after the March 2026 spam update never returned. | SE Ranking, April 2026 |
Each tracker uses its own keyword set and formula, and none publishes a false-positive rate. The SE Ranking panel is useful because it compares two confirmed updates on one keyword set. SE Ranking tracked 100,000 keywords across 20 niches from New York, comparing rankings on 10 November 2025 and 5 January 2026 for the December update, and on 16 February and 9 April 2026 for the March pair. Of about 302,000 domains that fell out of the top 100 after the March 2026 spam update, only 18% came back once the core update finished. The March figures blend two updates, which SE Ranking states openly, so the jump from 14.7% to 24.1% can't be pinned on the core update alone.
I treat trackers as smoke alarms, not fire reports. They tell you the SERPs moved; the dashboard tells you whether Google did it on purpose. When the two disagree, the dashboard wins for attribution and the tracker wins for timing of the first ranking movement.
Movement in aggregate hides the part that matters to a business: which sites gained and which lost.
Who wins and loses in a Google core update?
Recent Google core updates have moved visibility away from aggregators and user-generated platforms and toward first-party brands, with Reddit losing 13.74% of US visibility in the May 2026 core update, according to SISTRIX.
| Statistic | Source |
|---|---|
| In the May 2026 core update Reddit lost 13.74% of its US SISTRIX visibility, while YouTube gained 16.32%, in SISTRIX's analysis published 26 May and updated 5 June 2026. | SISTRIX, June 2026 |
| In SISTRIX's May 2026 core update data, Wikipedia lost 2.43% of US visibility and Amazon 4.87%, while Yelp gained 37.83% and Facebook 10.25%. | SISTRIX, June 2026 |
| Amsive's analysis of the December 2025 core update covered 1,000 winner and loser positions (803 unique domains) in US SISTRIX data. Wikipedia was the largest absolute loser at 435 visibility points, about 5%. | Amsive, January 2026 |
| Apparel sites gained 19% average visibility in the December 2025 core update and finance sites 15%. | Amsive, January 2026 |
| YouTube lost 567 SISTRIX visibility points in under two weeks during the March 2026 core update, in an analysis of 2,076 unique domains. | Amsive, April 2026 |
| In a study of 400+ winning and losing sites, 70.2% of winners offered their own product or service, against 34.6% of losers. | Zyppy, April 2026 |
| Sites with none of the five traits Zyppy identified had a 13.5% win rate; sites with all five had a 69.7% win rate. | Zyppy, April 2026 |
YouTube lost in March 2026 and gained in May 2026, in Amsive's and SISTRIX's data respectively. The samples differ, and one update's winner list predicts little about the next. The Zyppy study, built on 12 months of Ahrefs traffic estimates, is the more durable finding. The May 2026 SISTRIX table shows how uneven one update is even among the largest domains: Wikipedia lost 2.43% of US visibility and Amazon 4.87%, while Yelp gained 37.83% and Facebook 10.25%. Amsive built its March 2026 sample from four SISTRIX lists of the 500 biggest percentage and absolute winners and losers, then sorted all 2,076 domains into Google Product Taxonomy categories, so its category findings rest on a wider base than any top-10 list.
The winner-loser lists are entertainment unless you read them as a pattern. The pattern since 2024 is plain: sites that sell something, let the searcher finish the task and own something hard to copy keep winning. A site that summarises other people's content is renting its rankings, and core updates are when the rent goes up.
Losing visibility in a core update is recoverable; the next section looks at updates where it mostly wasn't.
What happens to sites hit by spam and helpful content updates?
Sites hit hard by Google's spam and helpful content updates rarely recover: only 22% of about 400 sites tracked after the September 2023 helpful content update had gained 20% or more by November 2024, according to data from Glenn Gabe.
| Statistic | Source |
|---|---|
| 1,446 of 79,000 sites monitored on three ad networks (Mediavine, Raptive and Ezoic) received manual actions after the March 2024 updates, about 1.9%. Originality.ai sells AI detection, which frames its interest. | Originality.ai, March 2024 |
| In a separate sample tracked by Ian Nuttall, 837 of 49,345 sites (1.7%) were deindexed, losing an estimated 20.7 million monthly visits and $446,552 in monthly display ad revenue. | Search Engine Journal, March 2024 |
| Of about 400 sites hit by the September 2023 helpful content update, 88 (22%) rose 20% or more after the August 2024 core update; 51 (13%) fell further. | Search Engine Roundtable, November 2024 |
| Independent review site HouseFresh lost 91% of its Google search traffic after the March 2024 core update, falling from about 4,000 daily Google visitors in October 2023 to about 200. | HouseFresh, May 2024 |
| BetterCloud lost 94.14% of its estimated organic traffic from 2023 to 2024, around the time of the November 2023 core update, the fourth-largest drop in an Ahrefs analysis of 1,600 SaaS companies. Ahrefs traces most of the loss to a since-deleted /academy subfolder. | Ahrefs, September 2024 |
Both deindexing counts date from March 2024, more than two years ago, and nobody has published a comparable count for a later spam update. The two samples differ in size and method, so the 1.9% and 1.7% are separate facts, not a range. Originality.ai's 79,000 sites split into 51,293 on Ezoic, 21,808 on Mediavine and 6,428 on Raptive, so the sample leans towards smaller ad-funded publishers. Ian Nuttall published his count on X, which blocks fetching, so we cite Search Engine Journal's report of March 2024. The recovery figure comes from Glenn Gabe's X post of 5 November 2024; we couldn't reach a matching post on his blog, so we cite Search Engine Roundtable's coverage of 6 November 2024. Traffic losses after updates also blend with slower, ordinary decay, which our content decay statistics page covers separately, and the role of AI-written content in the March 2024 hits sits on our AI-generated vs human content statistics page.
A core update demotes; a spam action or a sitewide classifier can erase. Those are different risks and deserve different budgets. The 22% recovery rate is the number I'd show a CEO who asks whether to wait out a hit: waiting is a plan that works for about one site in five.
Because the stakes for publishers are this high, regulators have started paying attention.
Why are regulators watching Google ranking changes?
Regulators are watching because Google handles more than 90% of UK searches, according to the Competition and Markets Authority (CMA), so a single ranking policy can reshape a whole market's traffic.
| Statistic | Source |
|---|---|
| The CMA found that more than 90% of searches in the UK take place on Google and designated Google with strategic market status in general search on 10 October 2025. | CMA, October 2025 |
| On 13 November 2025 the European Commission opened Digital Markets Act (DMA) proceedings into whether Google's site reputation abuse policy unfairly demotes news publishers' content. | European Commission, November 2025 |
The EU case concerns one of the three spam policies Google introduced in March 2024. The case puts a named ranking policy, not an ad product, at the centre of a DMA investigation. It opened a little over 18 months after the policy took effect in May 2024.
I don't expect regulators to slow the update cadence. What they can do is force Google to explain policies in more detail, which would make the dashboard more useful. For now, the dashboard is the only neutral record we have, and it's the one I'd build any update analysis on.
That record has gaps, though, and they shape every number above.
What does the Google Search Status Dashboard leave out?
The Google Search Status Dashboard leaves out every unannounced ranking change, which by Google's own figures is almost all of them: 4 to 10 confirmed updates a year against thousands of changes to Search.
| Statistic | Source |
|---|---|
| The Ranking area went live on 21 March 2023. The 15 entries that start before that date, from November 2021 to March 2023, were all posted on 22 March 2023, most with dates but no times. | Google Search Status Dashboard, 2026 (computed) |
| For crawling, indexing and serving incidents, Google aims to post within an hour of confirming an issue and to update within 12 hours; the start time is "generally when we managed to confirm the issue". | Google Search Central, December 2022 |
| After the November 2023 reviews update Google stopped posting reviews system updates to the dashboard, saying the system is now improved "at a regular and ongoing pace". | Google Search Status Dashboard, November 2023 |
| Google's ranking systems guide lists the helpful content system as retired; it became part of the core ranking systems in March 2024. | Google Search Central, ranking systems guide, 2026 |
Retention is the first limit. Google keeps five years, and the history now starts with the November 2021 spam update, so every long-run count on the dashboard, ours included, begins in late 2021. The June and July 2021 core updates aren't in it. Precision is the second. The 15 early entries were backfilled in one sitting on 22 March 2023 and mostly carry dates without times, so rollout lengths before 2023 are whole days and our 2022 overlap count leans on those dates.
Scope is the limit people forget. Systems that now update continuously, such as reviews since November 2023 and helpfulness since March 2024, never appear as new entries. The February 2026 Discover update shows the Ranking area also carries changes outside web results. The Search Central address that used to list ranking updates, developers.google.com/search/updates/ranking, now redirects to the dashboard's Ranking history, so the dashboard is Google's only running list. Days when trackers light up and Google says nothing stay invisible in it by design.
I build every update analysis on the dashboard, but I don't pretend it's complete. If a drop doesn't line up with an entry, the honest label is "unannounced change or something on our side", and I'd check our side first because it's the part I can fix. Anyone quoting update counts from before 2021 is relying on vendor lists, not Google's record.
With those limits stated, here's how the four computed numbers were built.
How we calculated the original numbers
Four Google algorithm update statistics on this page do not appear anywhere else. All come from one source, the Google Search Status Dashboard Ranking history, pulled on 24 September 2026. The history lists 42 entries back to 3 November 2021, because Google keeps entries for five years. We fetched each incident page for its start and end timestamp (US Pacific), excluded the two entries titled "Ranking is experiencing an ongoing issue", which are bugs rather than updates, and counted the still-running September 2026 spam update to 24 September. Entries before 21 March 2023 carry dates without times, so their rollout lengths are whole days. Start and end calendar days both count as rollout days, and a day counts as an overlap day when two or more updates touch it.
- 29.0% of days with an update rolling out. We listed every calendar day from each update's start date to its end date, merged overlaps, and counted days from 1 January 2022 to 24 September 2026: 501 of 1,728 days. 501 / 1,728 = 29.0%.
- 14.0-day median rollout. 39 updates have both timestamps. Sorted by end minus start, the median is 14.0 days (mean 15.2). The 16 completed core updates have a median of 14.5 days; the 11 completed spam updates 7.1 days. The longest is the March 2024 core update at 45.0 days.
- Updates per year: 10, 9, 7, 4, 7. Updates were counted by start year. 2021 is excluded because only November and December are still on the dashboard.
- 139 to 80 rollout days, 48 to 0 overlap days. The same day list, split by calendar year: 139 days in 2023 (38.1% of 365) against 80 in 2025 (21.9%). Days on which two or more updates were rolling out at once: 48 in 2023, 16 in 2024, 0 in 2025 and 0 in 2026 so far.
We also compared each core update's first dashboard post, where it states a maximum rollout time, with the actual rollout: 9 of 13 since March 2023 finished inside it.
The February 2026 Discover update is included because Google files it under Ranking, although it affects Discover rather than web results. Without it, 2026 has 6 updates and fewer rollout days.
What the 2026 numbers say
Google announces a sliver of what it changes, and that sliver still covers almost a third of the calendar. Four to ten confirmed updates a year against 4,781 launches means the dashboard is a trailer, not the film. Even so, 29% of days since 2022 had an announced rollout running.
The schedule got cleaner in 2025 and 2026. No overlapping updates since March 2024, fewer rollout days and shorter 2026 core updates make attribution easier than it was in 2023, and every core update since January 2025 finished inside the window Google announced. Spam updates are now the frequent ones: four of the seven 2026 entries, and three of those finished in under three days.
Winning is about what the site is, not what one update did. Winner lists flip between updates, but the traits in Zyppy's 400-site study hold across 12 months. If you want a return on SEO that survives the next core update, our SEO ROI statistics and the rest of the statistics hub show where the money sits. Build something searchers need, and treat each update as an audit you can't schedule.
FAQ
How many Google algorithm updates are there per year?
Google confirmed 10 ranking updates in 2022, 9 in 2023, 7 in 2024 and 4 in 2025, per its Search Status Dashboard (computed here). Google also says it updates Search thousands of times a year, and made 4,781 launches in 2023 alone. Only the notable ones get announced.
How long does a Google core update take to roll out?
14.5 days is the median for completed core updates on Google's Search Status Dashboard since November 2021, by our count. The range runs from about 6 days (December 2024) to 45 days (March 2024). Google advises waiting another week after completion before analysing Search Console.
How often is a Google update rolling out at any time?
29.0% of days between January 2022 and September 2026 had a confirmed Google ranking update rolling out, according to our count of the Search Status Dashboard. The share peaked at 38.1% in 2023 and fell to 21.9% in 2025.
What did the March 2024 core update change?
45% less low-quality, unoriginal content in search results, according to Google's update of 26 April 2024, against a 40% forecast. The update took 45 days, moved helpfulness signals into Google's core ranking systems and arrived with three new spam policies.
Can a site recover from a helpful content update?
22% of about 400 sites hit by the September 2023 helpful content update had regained 20% or more by November 2024, per Glenn Gabe's data reported by Search Engine Roundtable. 13% fell further. Full recovery to pre-update traffic is rare.
Which volatility tracker is most accurate for Google updates?
No tracker publishes an accuracy rate: Semrush Sensor, MozCast (10,000 keywords), AccuRanker Grump (about 1,000,000 keywords) and SISTRIX (1 million SERPs a day) each use their own panel and formula. Use them for timing and Google's Search Status Dashboard for confirmation.
Sources
- Google Search Status Dashboard, History for Ranking (pulled 24 September 2026)
- Google Search Status Dashboard, March 2024 core update (April 2024)
- Google Search Status Dashboard, September 2026 spam update (September 2026)
- Google Search Central, Introducing the Google Search Status Dashboard (December 2022, updated March 2023)
- Google Search Central, How to use the Google Search Status Dashboard (2026)
- Google Search Central, A Q&A on Google Search updates (November 2023)
- Google, How Search Works: Rigorous testing (2023 data)
- Google Search Central, Google Search's core updates and your website (2026)
- Google, New ways we're tackling spammy, low-quality content on Search (March 2024, updated April 2024)
- Google Search Central, What web creators should know about our March 2024 core update and new spam policies (March 2024)
- Google Search Central, How we fought spam on Google Search in 2022 (April 2023)
- Semrush, What is Semrush Sensor? (2026)
- Moz, MozCast (September 2026)
- AccuRanker, Google Grump (September 2026)
- SISTRIX, March 2026 Core Update: Radar, Visibility Analysis and Background (March 2026)
- SISTRIX, May 2026 Core Update: Visibility Analysis and Data Updates (May 2026, updated June 2026)
- SE Ranking, March 2026 Core Update Caused More Volatility Than December's (April 2026)
- Amsive, Google's December 2025 Core Update: Winners, Losers and Analysis (January 2026)
- Amsive, Google March 2026 Core Update: Winners, Losers and Analysis (April 2026)
- Zyppy Signal, 5 data-backed features of websites winning Google (April 2026)
- Originality.ai, Google March 2024 manual actions and AI content (March 2024)
- Search Engine Journal, Google's March 2024 Core Update Impact: Hundreds Of Websites Deindexed (March 2024)
- Search Engine Roundtable, 22% Of Sites Hit By Google's Helpful Content Update Are Up 20% Or More (November 2024)
- HouseFresh, HouseFresh disappeared from Google Search results. Now what? (May 2024)
- Ahrefs, The 25 Biggest Traffic Losers in SaaS in 2024 (September 2024)
- CMA, CMA confirms Google has strategic market status in search services (October 2025)
- European Commission, Commission opens investigation into potential DMA breach by Google in demoting media publishers' content (November 2025)
- Google Search Central, What to know about our August 2024 core update (August 2024)
- Google Search Central, Updating our site reputation abuse policy (November 2024)
- Google Search Central, A guide to Google Search ranking systems (2026)
- Google Search Status Dashboard, November 2023 reviews update (November 2023)
Methodology. These Google algorithm update statistics were collected on 24 September 2026 and checked against the original publisher's page, not against other statistics roundups. The four original numbers come from a full pull of the Google Search Status Dashboard Ranking history (42 entries, 3 November 2021 to 24 September 2026), with timestamps taken from each incident page. Google's confirmed updates, third-party volatility trackers and winner-loser studies are kept in separate sections, and vendor measurements are labelled as such. Where a primary source blocks fetching (Glenn Gabe's and Ian Nuttall's posts on X), the coverage is cited with its date. Stats older than 24 months are marked as dated in the text. Last updated 24 September 2026.