Objective
This blog covers every confirmed Google algorithm update from 2019 to 2026, explains what each one changed, and shows how to protect and recover your rankings when Google updates its search algorithm.
- Google algorithm updates are changes to how Google ranks pages, from small daily tweaks to broad core updates.
- The latest Google algorithm update is the September 2026 spam update, which rolled out from September 24 to October 7, 2026.
- 2026 has brought two core updates (March and May), four spam updates and a Discover core update so far.
- Core updates reassess content quality broadly. A ranking drop does not always mean your site broke a rule.
- Spam updates target policy violations, and recovery can take months after you fix the issues.
- People-first content, strong E-E-A-T and a clean technical setup are the best defense against any update.
Short answer: What are Google algorithm updates? Google algorithm updates are changes Google makes to its search ranking systems to show more helpful, relevant and trustworthy results. Most are small, but broad core updates and spam updates can shift rankings across many sites within days.
Google handles 89.94% of global searches, according to StatCounter data for September 2026. That is why every major update can change how much traffic your website gets overnight.
Did You Know?
Google’s Search Status Dashboard logged 7 confirmed ranking updates from February to September 2026, including 2 core updates and 4 separate spam updates.
Each update aims to reward quality content, relevance and credibility, and to push down spam. Marketers who track these changes can adapt their digital marketing strategy faster and avoid costly traffic drops.
Below is a complete timeline of Google algorithm updates from 2019 to 2026, followed by practical steps to recover and future-proof your rankings.
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Table Of Contents
- What Are Google Algorithm Updates?
- How Often Does Google Update Its Algorithm?
- Types of Google Algorithm Updates
- Google Algorithm Updates 2026 (Latest)
- Google Algorithm Updates 2025
- Google Algorithm Updates 2024
- Google Algorithm Updates 2023
- Google Algorithm Updates 2022
- Google Algorithm Updates 2021
- Google Algorithm Updates 2020
- Google Algorithm Updates 2019
- How to Recover After a Google Algorithm Update
- How to Future-Proof Your Site for Google Updates
- Stay Ahead of Google Updates with SEO Discovery
- FAQs About Google Algorithm Updates
What Are Google Algorithm Updates?
A Google algorithm update is a change to the systems Google uses to find, rank and display web pages. Some updates are small and go unnoticed. Others, like broad core updates, can move rankings across entire industries.
Every update has the same goal: to show the most helpful, relevant and trustworthy results. Understanding these updates helps you know which Google ranking factors matter most right now.
How Often Does Google Update Its Algorithm?
Google changes Search constantly. At Search Central Live NYC, Google’s John Mueller said Google made over 4,700 launches from more than 700,000 tests in 2023. That works out to more than a dozen changes every day.
Most of these changes are minor. Google only announces the bigger ones, such as core, spam and Discover updates, on its Search Status Dashboard. Some of the most famous updates in Google’s history include Panda, Penguin, Hummingbird, RankBrain and BERT. See our list of major Google algorithm updates for those older milestones.
Types of Google Algorithm Updates
Google’s confirmed updates usually fall into a few types:
| Update type | What it does | How often |
|---|---|---|
| Core update | Broad changes that reassess content quality and relevance across all sites | Usually 2 to 4 times a year |
| Spam update | Improves automated spam detection, such as SpamBrain, for sites that break spam policies | Several times a year |
| Helpful content update | Rewarded people-first content. Google folded this system into core updates in March 2024 | No longer separate |
| Reviews update | Rewarded in-depth, first-hand reviews. Now updated continuously | No longer announced |
| Discover update | Changes how content is chosen for the Google Discover feed | Occasional |
| Page experience update | Added signals like Core Web Vitals, mobile usability and HTTPS | Completed in 2021 and 2022 |
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Google Algorithm Updates 2026 (Latest)
Here are all confirmed Google algorithm updates in 2026 so far, according to Google’s Search Status Dashboard:
| Update | Started | Completed | Type |
|---|---|---|---|
| September 2026 spam update | September 24 | October 7 | Spam |
| August 2026 spam update | August 18 | August 20 | Spam |
| June 2026 spam update | June 24 | June 26 | Spam |
| May 2026 core update | May 21 | June 2 | Core |
| March 2026 core update | March 27 | April 8 | Core |
| March 2026 spam update | March 24 | March 25 | Spam |
| February 2026 Discover update | February 5 | February 27 | Discover |
September 2026 spam update (latest)
The latest Google algorithm update started on September 24 and finished on October 7, 2026, after about 13 days. It is the fourth spam update of the year and continues Google’s work on automated spam detection.
August 2026 spam update
A short spam update that ran from August 18 to 20. Google said it applied globally and to all languages, and that it did not cover link spam or site reputation abuse, which are handled by separate systems.
June 2026 spam update
Another fast spam update that took about two days, from June 24 to 26.
May 2026 core update
The second core update of 2026 ran from May 21 to June 2. It caused strong ranking volatility, with big swings around May 23 and May 30. Google shared no new guidance and pointed site owners to its advice on helpful, people-first content.
March 2026 core update
Google called it “a regular update designed to better surface relevant, satisfying content for searchers from all types of sites.” It ran from March 27 to April 8, about 12 days.
March 2026 spam update
The shortest confirmed spam update on record, completed in under 20 hours on March 24 and 25, just two days before the March core update.
February 2026 Discover update
A core update for the Discover feed that ran from February 5 to 27. It favors locally relevant sites, reduces clickbait and sensational content, and rewards in-depth, original and timely content from sites with expertise. It started with English-language users in the United States.
Google Algorithm Updates 2025
| Update | Started | Completed | Type |
|---|---|---|---|
| December 2025 core update | December 11 | December 29 | Core |
| August 2025 spam update | August 26 | September 22 | Spam |
| June 2025 core update | June 30 | July 17 | Core |
| March 2025 core update | March 13 | March 27 | Core |
December 2025 core update
The final core update of 2025 rolled out over about 18 days. It continued Google’s focus on rewarding relevant, satisfying content from all types of sites.
August 2025 spam update
A long spam update that took almost four weeks. It targeted sites violating Google’s spam policies across all languages.
June 2025 core update
A broad core update that ran for about 17 days and caused noticeable volatility, with some sites hit by earlier updates seeing partial recovery.
March 2025 core update
The first core update of 2025, which rolled out over about two weeks and aimed to surface more relevant, satisfying content.
Google Algorithm Updates 2024
December 19: Spam update
This spam update ran until December 26 and targeted spammy content. Some site owners reported sharp traffic swings during the rollout.
December 12: Core update
A fast core update that finished on December 18. It came only weeks after the November core update, as Google explained it was improving different core systems.
November 11: Core update
This core update took about three weeks to roll out. Google advised sites that lost rankings to focus on content quality rather than quick fixes, since recovery can take months.
August 15: Core update
After feedback from small and independent publishers hit by the 2023 helpful content update, Google aimed to better surface useful content from smaller sites. Some affected sites saw partial recovery.
July 31: Explicit deepfake protections
Google updated its systems to reduce non-consensual explicit fake content, including AI-generated images and videos, and made removal requests easier. This was a search change rather than a broad ranking update.
June 20: Spam update
A week-long spam update that improved Google’s automated spam detection. Sites affected should review Google’s spam policies.
March 5: Core update and new spam policies
One of the biggest updates in years. The core update took 45 days and folded the helpful content system into Google’s core ranking systems. Google also launched three new spam policies:
- Expired domain abuse: Buying expired domains only to manipulate rankings.
- Scaled content abuse: Mass-producing low-value content to game search, whether by humans or AI.
- Site reputation abuse: Hosting low-value third-party content on a trusted site to borrow its ranking power.
Google Algorithm Updates 2023
November 8: Reviews update
This reviews update covered review content in many categories, not just products, and was the last one Google announced before moving to continuous updates.
November 2: Core update
A core update that ran alongside the reviews update, bringing strong volatility and many new URLs into the top 10.
October 5: Core update
A broad core update that ran for about two weeks.
October 4: Spam update
This spam update focused on spam in many languages, including Turkish, Vietnamese, Indonesian, Hindi and Chinese.
September 14: Helpful content update
A major update that rewarded content made for people, not search engines. It hit many content sites hard, especially small publishers.
August 22: Core update
A broad core update that rolled out over about two weeks.
April 12: Reviews update
This update expanded the product reviews system to cover reviews of services, businesses and more.
March 15: Core update
A broad core update that caused significant ranking movement across many sectors.
February 21: Product reviews update
The last update under the “product reviews” name, extending the system to more languages.
Google Algorithm Updates 2022
December 14: Link spam update
Google used its AI-based SpamBrain system to detect sites buying links and sites passing outgoing links for ranking purposes.
December 5: Helpful content update
This update expanded the August helpful content update worldwide and to all languages, further demoting unoriginal, low-value content.
October 19: Spam update
A short spam update aimed at malicious sites, spammy content and harmful links.
September 20: Product reviews update
Rewarded detailed, trustworthy reviews with expert analysis and real-life usage details.
September 12: Core update
A broad core update that fine-tuned content relevance and result accuracy.
August 25: Helpful content update
The first helpful content update, which targeted content written mainly for search engines rather than people.
July 27: Product reviews update
Continued Google’s push for in-depth, first-hand product reviews.
May 25: Core update
A broad core update that refined how Google evaluates content quality across industries.
March 23: Product reviews update
Promoted in-depth product reviews over thin, affiliate-heavy pages.
February 22: Page experience update for desktop
Extended the 2021 mobile page experience signals, including Core Web Vitals and HTTPS, to desktop search. See our guide to page speed optimization to improve these signals.
Google Algorithm Updates 2021
December 1: Product reviews update
Rewarded product reviews that showed expertise, depth and accuracy.
November 30: Local search update
Rebalanced the factors used in local results. It affected how businesses appear in local searches and the map pack. Our local SEO services help businesses adapt to these changes.
November 17: Core update
A broad core update that affected rankings across many sites.
November 3: Spam update
Targeted sites using manipulative tactics such as keyword stuffing and spammy SEO techniques.
July 26: Link spam update
Detected and devalued spammy links, hitting sites that used unethical link-building practices.
July 1: Core update
The second part of a two-part core update that refined rankings for quality content.
June to August: Page experience update
Rolled out Core Web Vitals and other page experience signals for mobile search, rewarding faster, more stable pages.
June 2: Core update
The first part of the two-part summer core update.
April 8: Product reviews update
Promoted product reviews with insightful analysis and original research over thin summaries.
February 10: Passage ranking
Allowed Google to rank individual passages within long pages, helping well-structured content surface for specific questions.
Google Algorithm Updates 2020
December 3: Core update
The last core update of 2020, which affected rankings globally across all languages.
May 4: Core update
A significant update that especially affected YMYL (Your Money, Your Life) sites in finance, health and news.
January 22: Featured snippet deduplication
Pages shown in a featured snippet no longer appeared again in the regular page one results.
January 13: Core update
The first core update of 2020, which affected sectors including finance and health.
Google Algorithm Updates 2019
October 25: BERT update
One of the biggest changes in years. BERT helped Google understand natural language and the context of words in a query, improving results for long-tail and conversational searches. Google said it affected about 1 in 10 searches in US English.
September 24: Core update
A broad core update. Google again pointed sites to its guidance on expertise, authoritativeness and trustworthiness, now known as E-E-A-T.
June 6: Site diversity update
Limited most searches to no more than two results from the same domain in the top results.
June 3: Core update
A broad core update that caused significant ranking shifts. Google pre-announced it, which was new at the time.
March 12: Core update
A broad core update that rewarded high-quality content and better matched user intent.
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How to Recover After a Google Algorithm Update
If your traffic drops after an update, do not panic or make big changes right away. Follow these steps:
- Confirm the timing: Compare your traffic drop with update dates on the Search Status Dashboard. Wait at least a week after an update finishes before judging the impact.
- Find what dropped: Use Google Search Console to see which pages, queries and countries lost clicks. Our guide on why your website ranking dropped covers common causes.
- Check for spam or manual actions: Review the Manual Actions report and your backlinks. If you received a penalty, follow our Google penalty recovery steps.
- Improve content quality: Update thin or outdated pages, add first-hand expertise and answer the searcher’s question clearly.
- Fix technical issues: Check speed, indexing, broken links and mobile usability with a technical SEO audit.
- Be patient: Some recovery can happen between core updates, but bigger gains often come with the next one.
For a detailed plan, read our guides on how to overcome a traffic drop after a Google core update and recover Google traffic.
How to Future-Proof Your Site for Google Updates
- Create people-first content: Write for your audience, not for search engines, and show real expertise and experience.
- Build E-E-A-T: Add author bios, cite sources and earn mentions from trusted sites.
- Earn quality links: Focus on relevant, natural backlinks through ethical link building and avoid paid link schemes.
- Keep your site technically healthy: Fast pages, mobile-friendly design and clean indexing protect you from many quality issues.
- Avoid scaled and third-party spam: Do not mass-produce low-value pages or rent out your domain to unrelated content.
- Optimize for AI search: Clear answers and structured content help you appear in Google AI Overviews and AI Mode, which now sit at the top of many results.
- Monitor regularly: Track rankings and traffic weekly so you spot update impacts early.
Stay Ahead of Google Updates with SEO Discovery
Google algorithm updates will keep coming, and each one can reshape your traffic. The sites that grow over time are the ones that focus on helpful content, strong authority and a solid technical foundation, not short-term tricks.
SEO Discovery, a digital marketing agency with over 22 years of experience, tracks every confirmed Google update and adjusts client strategies quickly. Our team combines content writing services, technical SEO audits and AI SEO services to protect your rankings on Google and in AI search.
If an update has hurt your traffic, or you want to stay ahead of the next one, our experts can help you build a strategy that lasts.
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FAQs About Google Algorithm Updates
Google algorithm updates are changes to the systems Google uses to rank web pages. They range from small daily tweaks to broad core updates that can shift rankings across many sites.
The latest confirmed Google algorithm update is the September 2026 spam update, which ran from September 24 to October 7, 2026. The latest core update was the May 2026 core update.
Google makes thousands of changes every year. John Mueller said Google made over 4,700 launches from more than 700,000 tests in 2023. Only major updates, like core and spam updates, are announced.
So far in 2026, Google has released two core updates: the March 2026 core update and the May 2026 core update. It also released a Discover core update in February.
A core update is a broad change to Google’s ranking systems that reassesses content quality and relevance. It does not target specific sites, and a drop does not always mean you did something wrong.
A spam update improves Google’s automated spam detection, such as SpamBrain. It affects sites that break Google’s spam policies, such as link schemes, cloaking or scaled content abuse.
Compare traffic changes in Google Search Console with update dates on the Search Status Dashboard. A sharp drop or rise that starts during a rollout usually points to the update.
Recovery depends on the cause. Content improvements may help over weeks or months, but larger recoveries often appear with the next core update. Spam-related recovery can take many months.
Not as a separate update. In March 2024, Google folded the helpful content system into its core ranking systems, so helpfulness is now assessed in every core update.
Focus on people-first content, strong E-E-A-T, quality backlinks, good page experience and avoiding spam tactics. Regular monitoring helps you react quickly when an update rolls out.