
Google Algorithm Updates in 2026: Every Update So Far
A running list of every confirmed Google algorithm update and policy change in 2026, with dates, durations and links to detailed explainers.
Every major Google algorithm update explained — what changed, who was affected and how to recover.

A running list of every confirmed Google algorithm update and policy change in 2026, with dates, durations and links to detailed explainers.

Google's September 2026 spam update rolled out from 24 September to 8 October 2026, much longer than earlier 2026 spam updates. Here's how to check for impact.

In August 2026 Google changed how its site reputation policy is enforced for searchers in the European Economic Area. Here is what changed and what is still unclear.

Google released three short spam updates in March, June and August 2026. Here are the confirmed dates, what little Google said and how to check for impact.

Google's May 2026 core update rolled out in about 12 days, from 21 May to 2 June. Here is what Google confirmed and what trackers suggested.

In April 2026 Google made back button hijacking an explicit spam violation, enforced from 15 June. Here is what it covers and how to audit your site.

Google's March 2026 core update ran from 27 March to 8 April, three days after a spam update. Here is what was confirmed and what trackers reported.

Google's February 2026 Discover core update was the first core update for Discover alone. Here is what Google said, what it didn't, and how to read your data.

Every confirmed Google update of 2025 in date order: three core updates, a nearly four-week spam update and the US launch of AI Mode.

Google's December 2025 core update ran from 11 to 29 December, right through the holidays. Here is what Google confirmed and what analysts observed.

Around 10–14 September 2025, Google stopped supporting the num=100 parameter. Rank trackers broke and desktop Search Console impressions fell sharply, a reporting change mistaken for an update.

Google's August 2025 spam update took almost four weeks to roll out. Here is what Google confirmed, what was observed and how to audit your site.

Launched 12 August 2025 in the US and India. Preferred Sources let readers star news outlets so they appear more often in Top Stories, expanding to all languages worldwide by April 2026.

Google's June 2025 core update ran from 30 June to 17 July and brought big swings plus some partial recoveries. Here is what is confirmed and what is anecdotal.

Google's March 2025 core update ran from 13 to 27 March. Here is what Google confirmed, what data providers saw and how AI search changes complicate the picture.

Every confirmed Google update and policy change of 2024 in date order, from the 45-day March core update and new spam policies to AI Overviews and three late-year core updates.

Google's December 2024 spam update rolled out globally from 19 to 26 December, right after a core update. Here is what was confirmed and how to respond.

Google released its December 2024 core update just one week after the November update ended. Here is what Google confirmed, what trackers saw and how to read your data.

Google’s November 2024 core update rolled out through peak retail season. Here are the confirmed facts, reported effects and how to analyse Q4 data.

Google’s August 2024 core update took creator feedback into account and aimed to show more small and independent sites. Here is what happened and how to read your data.

Announced 31 July 2024. Google made removals of explicit deepfakes easier, favored non-explicit results for name searches (cutting exposure by over 70%) and demoted sites with many removals.

Google’s June 2024 spam update was a one-week rollout after the March 2024 changes. Here is what Google confirmed and how to respond if your site was affected.

A dated timeline of Google's AI search rollouts, from the 2023 SGE experiment to AI Overviews and AI Mode, and how to measure their impact separately from ranking updates.

Google folded its helpful content system into core ranking in March 2024. Here is what changed, what “retired” means and what it implies for sites hit by earlier updates.

Google’s scaled content abuse policy replaced the old auto-generated content rule in March 2024. Here is what it covers, Google’s examples and how to audit your site.

Since March 2024, buying an expired domain to rank low-value content on its old reputation is spam under Google’s policies. Here is what counts and what does not.

About the update Google’s March 2024 Core Update in Brief Why Was The Update Required? SEOs have been exploiting the Google’s algorithm system of rankings by…

Every confirmed Google update of 2023 in date order, including four core updates, the reviews system expansion and the crowded October 2023 overlap.

Confirmed 16 November 2023 after rolling out within the fall 2023 core updates. Hidden gems boosted first-hand content from forums, social posts and blogs, lifting Reddit, Quora and many niche forums.

Google’s November 2023 reviews update was the last it announced; reviews system improvements now happen continuously. Here are the facts and what review sites should do.

Google’s November 2023 core update started two weeks after October’s ended. Google said it improved a different core system. Here are the facts and analysis steps.

Google’s October 2023 core update overlapped a spam update and a confirmed Discover bug. Here is what Google confirmed and how to untangle the data.

Google’s October 2023 spam update improved spam detection in many languages and overlapped with a core update. Here are the confirmed facts and what to do if you were hit.

Google's September 2023 helpful content update improved the classifier and rewrote key guidance, and many independent publishers reported severe losses. Here is what was confirmed and what we have learned since.

Google's August 2023 core update rolled out over 16 days as Reddit and forums surged in search. Here is what Google confirmed, what trackers measured and where sources disagree.

In April 2023 Google renamed its product reviews system the reviews system and widened it to services, places, media and other things. Here is what changed and how to adapt.

Google's first core update of 2023 rolled out over 13 days and caused far more volatility than September 2022. Here is the timeline, the context and the practical lessons.

Google's February 2023 product reviews update took the system beyond English to ten more languages. Here are the confirmed facts and what non-English review publishers should do.

Every confirmed Google update of 2022 in date order, including the launch of the helpful content system, two core updates and three product reviews updates.

Google's December 2022 link spam update used SpamBrain to spot both sites buying links and sites passing outgoing links. Here is what that meant and why lost link credit does not come back.

Google's second helpful content update improved the classifier, extended it to all languages and took 38 days to roll out over the holidays. Here is what changed and what it means.

Google's October 2022 spam update rolled out globally in all languages over just two days. Here is what was confirmed, how it relates to Google's spam policies and how to respond.

Google's fifth product reviews update rolled out over six days in September 2022, right in the middle of a core update. Here is how to tell which one moved your rankings.

The September 2022 core update rolled out over 14 days, overlapped a product reviews update and caused less volatility than many core updates. Here is what was confirmed and what it teaches.

Google's first helpful content update rolled out from 25 August to 9 September 2022, launching a site-wide classifier aimed at content made primarily for search engines.

Google's July 2022 product reviews update rolled out in about six days, from 27 July to 2 August 2022, refreshing the English-language reviews system without new guidance.

Google is constantly updating its algorithms to improve search results. There is no specific frequency of algorithms being rolled out for a matter of fact that people…

Google's third product reviews update rolled out from 23 March to 6 April 2022, adding guidance on ranked lists, comparisons and justifying "best" picks.

Google extended page experience ranking to desktop from 22 February 2022, bringing over Core Web Vitals, HTTPS and interstitial signals but not mobile-friendliness.

Every confirmed Google algorithm update of 2021 in date order, from passage ranking to the December product reviews update, with the lessons that still apply.

Google's December 2021 product reviews update ran from 1 to 21 December 2021 and asked reviewers for evidence of hands-on use and links to multiple sellers.

Google confirmed a local search update between 30 November and 8 December 2021, nicknamed Vicinity by SEOs. Here's what was confirmed, what was observed and what to do.

Google's November 2021 core update rolled out from 17 to 30 November 2021, overlapping Black Friday and Cyber Monday. Here's what Google said and how to analyse it.

Google's November 2021 spam update rolled out from 3 to 11 November 2021, days before the November core update, and is the first ranking entry on Google's Search Status Dashboard.

Rolled out mid-August 2021. Google began generating search titles from H1s, headings and anchor text instead of title tags, then refined it in September to use title tags about 87% of the time.

Google's July 2021 link spam update nullified spammy links across languages and reminded sites to qualify affiliate, sponsored and guest-post links. Here are the facts and an audit checklist.

The July 2021 core update finished what June started. Here are the confirmed facts, what Google said about reversals, and how to analyse a two-part update.

Google ran two one-day spam updates in June 2021. Here is what Google confirmed, what spam updates target, and how they differ from core updates.

The 2021 page experience update made Core Web Vitals part of mobile ranking, with a small expected impact. Here is the timeline, the signals and what changed since.

Google split its summer 2021 core update into two parts. Here are the June facts, Google's warning about reversals, and how to analyse overlapping updates.

MUM was billed as 1,000 times more powerful than BERT, yet Google says it isn't used for general ranking. Here is what it actually does in Search.

Google's first product reviews update rolled out from 8 to 22 April 2021 for English-language reviews, rewarding in-depth, expert reviews over thin summaries.

Passage ranking lets Google judge a page's relevance from individual sections. Here is what was announced, what it is not, and how to structure content for it.

Released just after Cyber Monday, the December 2020 core update was reportedly bigger than May 2020. Here are the facts and how to analyse it.

Everything you need to know about Google’s May 2020 Core Update As we know Google launches algorithm updates every year to keep the search results as user-friendly as…

Since January 2020, a page in a featured snippet no longer gets a second page-one listing. Here is what changed and how to decide whether a snippet is worth keeping.

The first core update of 2020 rolled out in about three days and stirred up YMYL results. Here are the confirmed facts and a sensible way to analyse it.

Began in early November 2019 and confirmed in December. Google started using neural matching to understand local intent worldwide, reshuffling map pack results and reducing the pull of keyword-stuffed names.

BERT changed how Google reads queries rather than how it judges sites. Here is what Google announced, how it expanded and what it means for content in 2026.

The September 2019 core update rolled out from 24 September and was weaker than June overall, but still hit YMYL sites. Here is the data and Google's guidance.

Google pre-announced the June 2019 core update a day early, a first. It rolled out over about five days alongside a separate site diversity change.

The March 2019 core update began on 12 March and was the first Google named with its month-year convention. Here is what was confirmed and what tools reported.

Google's 1 August 2018 broad core update, nicknamed Medic, caused big swings for health and finance sites and sparked the E-A-T debate. Here is what was confirmed and what was not.

In July 2018 Google started using page speed in mobile ranking, affecting only the slowest pages. Here is what changed and how it evolved into Core Web Vitals.

Rolled out 16 April 2018 and confirmed 20 April. Google's second broad core update in five weeks reinforced its message that drops reflect relevance shifts toward under-rewarded pages, not penalties.

Mobile-first indexing changed Google from crawling desktop pages to crawling mobile ones. Here is the full rollout timeline, the common parity problems and what it means today.

Google's March 2018 broad core update, nicknamed Brackets, came with a message that reshaped SEO: there is no 'fix' for pages that drop, other than great content.

Hit 12 to 14 December 2017. Google called Maccabees "several minor improvements"; sites with large sets of keyword-permutation landing pages, many of them affiliates, reported the biggest drops.

Spotted 22 August 2017. The unconfirmed Hawk update tightened Possum's proximity filter, so far fewer nearby competitors were hidden from local results, though same-building listings stayed filtered.

Fred was a March 2017 ranking change linked by analysts to ad-heavy, low-value content. Google never confirmed its specifics, and its name started as a joke.

In January 2017 Google began demoting mobile pages whose pop-ups blocked content on arrival from search. Here is what counted, what was exempt and what to use instead.

In September 2016 Penguin became part of Google's core algorithm, ran in real time and started devaluing spam rather than demoting whole sites. Here is what that means for links and disavow files today.

Possum was an unconfirmed September 2016 local search change that filtered similar listings and helped businesses outside city limits. Here is what was observed and what it means now.

Fully rolled out 12 May 2016. Google strengthened the mobile-friendly ranking signal it launched in 2015, assessed page by page, so pages that still failed the test lost more ground in mobile results.

Confirmed March 9, 2016 and switched off April 15, 2016. Google removed the public 0-10 Toolbar PageRank score, which fuelled link selling, while keeping PageRank in its ranking systems.

Launched February 23-24, 2016. Google began showing AMP pages in mobile search, with an AMP-only Top Stories news carousel that pushed publishers to adopt AMP until 2021.

Rolled out from February 19, 2016. Google removed desktop right-side text ads worldwide and showed four ads above organic results on highly commercial searches, pushing organic listings down.

Confirmed January 2016. Google said Panda had become one of its core ranking signals, ending named Panda refreshes, though it stressed Panda was not running in real time.

To sort its search results, Google uses a machine-learning system known as the RankBrain. Ask how it works and fits into the overall classification scheme of Google?…

Rolled out August 7, 2015. Google cut the local pack from seven listings to three, removed phone numbers and full addresses, and made local visibility far more competitive.

Began rolling out July 17-18, 2015. Panda 4.2 was a refresh affecting 2-3% of English queries that took months to roll out, the last Panda update Google confirmed by name.

In early May 2015 SEOs noticed big ranking swings and called it "Phantom". Google later confirmed a change to how its core algorithm processes quality signals. Here is what we know and why it still matters.

Mobilegeddon was the industry nickname for Google's 21 April 2015 mobile-friendly update. The hype was enormous; the measured impact was modest. Here is what happened and what it teaches about hyped updates.

Announced March 16, 2015. Google's doorway page update was a ranking adjustment against large sets of near-identical pages, such as city and keyword-variation page farms.

Penguin 3.0 arrived on 17 October 2014, more than a year after the previous Penguin release. It let some cleaned-up sites recover and exposed the problem with slow refresh cycles.

Rolled out from September 23, 2014. Panda 4.1 added new quality signals, affected 3-5% of queries and hit thin affiliate, keyword-stuffed and deceptive sites.

Author photos vanished in June 2014, and on August 28, 2014 Google dropped authorship from results entirely, saying it was less useful to users than hoped.

In August 2014 Google said HTTPS would become a very lightweight ranking signal. Here is what that meant then, how HTTPS later became part of page experience, and what realistic expectations look like in 2026.

What is the Pigeon Update? When was the Pigeon Update launched? What is the importance of the Pigeon Update? How does the Pigeon Update affect your website? Here are the…

Rolled out May 20, 2014. Panda 4.0 hit thin, duplicate and aggregated content across about 7.5% of English queries, with eBay, Ask.com and gossip sites among the biggest losers.

Rolled out 4 October 2013. Penguin 2.1 was a data refresh of the Penguin 2.0 link spam algorithm that Matt Cutts said noticeably affected about 1% of searches, followed by a year-long wait.

Launched 6 August 2013. Google added an in-depth articles block for evergreen long-form content, with markup advice for publishers; the label went in 2015 and the block faded by 2019.

Hummingbird was a major rewrite of Google's ranking systems, in use from August 2013 and revealed on 26 September 2013. It shifted Search toward understanding the meaning of whole queries.

Between June 2013 and June 2014 Google released three Payday Loan updates aimed at heavily spammed queries such as payday loans, casinos and pills. Here is what each did and how high-spam niches are handled in 2026.

Penguin 2.0 launched on 22 May 2013 and reached further into sites than the original Penguin. Here is what Google confirmed, what SEOs inferred, and what it still teaches about links.

In September 2012 Google cut back on low-quality exact match domains ranking too easily. Its exact match domain system still exists. Here is what that means for choosing a domain in 2026.

Since August 2012, Google has used the volume of valid copyright removal notices as a ranking signal. Here is how the Pirate update started, how it was refined, and how removal-based demotions work now.

Rolled out 25 May 2012. Penguin 1.1 was the first Penguin data refresh, affecting under 0.1% of English searches and proving that cleaned-up sites could recover on the next run.

Announced 16 May 2012. The Knowledge Graph gave Google a database of 500 million+ entities, brought knowledge panels to results pages and moved search from keywords to things.

Penguin hit link schemes and keyword stuffing in April 2012. Here is what Google said, how the industry reacted and how recovery worked under the original Penguin.

Mid-March 2012. Google deindexed most of the paid BuildMyRank blog network and reportedly others, a warning shot against link networks five weeks before Penguin launched.

Venice made Google's organic results location-aware in 2012. Here is what changed and what it means for local businesses and multi-location brands.

In January 2012 Google began demoting ad-heavy pages with little visible content. Here is what the page layout algorithm did and why it still matters.

Launched 10 January 2012. Search plus Your World blended signed-in users’ Google+ posts, photos and profiles into results, sparking a backlash from Twitter and Facebook over self-preference.

Google's 2011 Freshness update favoured recent results for time-sensitive searches. Here is what changed and how freshness systems work in 2026.

Announced 18 October 2011. Google moved signed-in users to encrypted search, stripping organic keywords from analytics and starting the “(not provided)” era; all searches followed in 2013.

Rolled out 12 August 2011. Panda 2.4 extended the quality algorithm to all languages except Chinese, Japanese and Korean, affecting about 6–9% of queries in most languages.

Rolled out 11 April 2011. Panda 2.0 extended the quality algorithm to all English queries worldwide and used blocked-site data as a signal, hitting eHow UK, Ciao and HubPages.

What is Panda Update Google? Panda is the official name of a Google update that is intended to reduce the prevalence and rewards unique and convincing content of…

In January 2011 Google targeted sites that scraped others' content. Here is what changed, what Google said and how to protect your originals today.

Announced 1 December 2010. After a New York Times story, Google added an algorithm that demoted DecorMyEyes and hundreds of other merchants giving customers an extremely poor experience.

Confirmed in December 2010. Google and Bing told Search Engine Land they used tweeted links and author authority in some rankings, starting a decade-long social signals debate.

Launched 8 September 2010. Google Instant loaded results as users typed, sparking fears about long-tail SEO that did not come true; Google retired it in July 2017 as search went mobile.

Launched 20 April 2010. Google renamed its Local Business Center to Google Places, linked listings to Place Pages and added service areas, coupons and updates for owners.

Mayday hit long-tail traffic on sites with many thin pages in spring 2010. Here is what Google confirmed and how to audit deep pages today.

Announced 7 December 2009. Google real-time search streamed tweets, news and fresh posts into results, ranking the latest items when relevant, until the Twitter deal ended in July 2011.

Announced 4 December 2009. Google extended personalized search to signed-out users, using 180 days of cookie-based search history, ending the idea of one ranking for everyone.

Caffeine rebuilt Google's index so new pages could appear within minutes. Here is what it changed, what it didn't, and how it shaped content strategy.

In 2009 big brands seemed to jump up Google's results. Google said Vince was about trust, not brands. Here is what happened and how small businesses can compete.

Reported from late March 2008. Dewey caused a large, unexplained ranking reshuffle; Matt Cutts asked for feedback, and some believed Google was boosting its own properties such as Google Books.

Reported mid-June 2007 and named after departing Googler Vanessa Fox. Buffy moved some single-word rankings, but Matt Cutts said it was not really an update, just small changes.

Launched 16 May 2007. Universal Search blended news, images, video, maps and books into Google's web results, ending the ten-blue-links page and opening new routes to visibility.

Reported in late 2006. Many pages slipped into Google's supplemental index, which Google tied to low PageRank; the label was dropped in July 2007 and the separate index phased out.

Big Daddy was an infrastructure update, not a ranking tweak. Here is how it rolled out, what it changed and the technical SEO lessons that still apply.

September 2005. Webmasters named Gilligan after toolbar PageRank and backlinks changed, but Matt Cutts said it was only already-used data becoming visible, not a real algorithm update.

Rolled out in three stages in October and November 2005. Jagger devalued reciprocal link swaps, link farms and paid links and hit hidden text and cloaking, an early forerunner of Penguin.

Rolled out late May to June 2005. Bourbon brought about 3.5 quality changes, per GoogleGuy, and was linked to duplicate content, www/non-www canonical issues and reciprocal link schemes.

Rolled out in early February 2005. Allegra caused widely felt but unexplained ranking shifts; some sandboxed new sites recovered, and Google said most changes were not due to nofollow.

Rolled out 17–20 February 2004. Brandy came with an index jump to 4.28 billion pages and reportedly gave more weight to anchor text and topically related links, sparking the LSI theory.

Hit sites around 23 January 2004. Austin extended the Florida crackdown, catching hidden text, stuffed meta tags, FFA link farms and off-topic link swaps that had survived the first wave.

The November 2003 Florida update upended keyword-stuffing SEO just before the holiday season. Here is what is known, what is myth, and what still applies.

Summer (July) 2003. Fritz replaced Google's monthly batch index updates with incremental, near-daily refreshes, ending the Google Dance and starting the daily ranking movement called “everflux.”

June 2003. Esmeralda was the last of Google's regular monthly index updates, marking the end of the “Google Dance” as Google moved toward rolling, near-daily index changes.

May 2003. Dominic changed how Google counted and reported backlinks, while webmasters saw Freshbot take over from the monthly deep crawler, a step toward the end of the Google Dance.

April 2003. Cassandra was reported to target hidden text, hidden links and mutual links between co-owned websites, one of Google's first clear moves against manipulative link patterns.

February 2003. Boston was the first Google update the SEO community named, reportedly announced at SES Boston during the era of monthly “Google Dance” index refreshes.

A practical Search Console workflow for diagnosing a core update drop: confirm the dates, compare the right windows and pinpoint which pages and queries lost out.

Set the right comparison windows, control for weekdays and seasonality, and measure a core update's real impact without fooling yourself.

A simple, evidence-based test to tell a seasonal traffic dip from a Google algorithm update loss, using year-over-year data and Google Trends.
A practical checklist for ruling out GA4 tagging, consent, Search Console reporting and outage problems before blaming a Google update.

A policy-by-policy plan to recover from a Google spam update, from confirming the cause to fixing root problems and setting realistic expectations.

Why neutralised links do not come back after a link spam update, what you can still fix, and how to rebuild authority legitimately.

Audit and improve review pages against what Google's reviews system rewards, and why continuous improvement beats waiting for an announcement.

A realistic recovery plan for sites hit by the 2022-2023 helpful content updates, now that the system is part of Google's core ranking.

For publishers who removed or noindexed third-party sections: how to rebuild first-party content, manage lost revenue and monitor recovery.

How to inventory, score and clean up mass-produced AI or programmatic pages after a demotion, and fix the process behind them.

Bought an expired domain and lost traffic? Here is how to check whether Google’s expired domain abuse policy applies and how to rebuild the site honestly.

Before fixing an update drop, find out where it happened. Here is how to split losses by page, directory and template, and how to read the patterns.

A traffic total hides the real story. Segment your queries by brand, intent and position band to see exactly what a Google update changed.

Someone else gained when you lost. Here is how to study the pages and site types Google rewarded, spot intent shifts and respond without copying.

Turn Google’s self-assessment questions into a practical scoring sheet and audit the pages a core update hit, without guesswork or bias.

Google calls deleting content a last resort. Use this framework to decide when to improve, consolidate, noindex or remove weak pages after an update.

Google says core update recovery can take days to months, sometimes until the next core update. Here is what affects timing and how to set expectations.

Improvements often seem to pay off only at the next core update. Here is what Google says, what changes in between, and how to plan around the cycle.

Core Web Vitals are a ranking signal, but rarely the reason for a core update drop. Here is what to expect from page experience fixes in 2026.

Audit your mobile pop-ups against Google’s interstitial guidance, replace intrusive ones with compliant alternatives and keep your conversions.

A practical audit for back button hijacking: where history-manipulating scripts hide, how to test navigation, and how to fix issues under Google's 2026 spam policy.

A step-by-step way to work out why local rankings fell: algorithm update, Business Profile problem, proximity shift, spam competitor or seasonal dip.

How to work out why Discover traffic fell, using the Discover report, a content-type breakdown and the facts about Google's February 2026 Discover core update.

A query-level method to tell whether falling clicks come from AI Overviews and other SERP features or from a genuine ranking demotion.

A practical recovery plan for health and finance sites hit by a core update, built around authorship, expert review, sourcing and trust.

Step-by-step recovery for affiliate sites hit by reviews or helpful-content-type changes, based on Google's published guidance.

A calm, step-by-step response to ranking volatility that Google has not confirmed, from checking trackers to deciding whether to act.

A five-part template for reporting a Google update's impact to clients and stakeholders, with timing, example wording and the metrics that matter.
How to use Search Console's custom annotations, added in November 2025, to log Google update rollouts and your own site changes on performance charts.

How to use Search Console's branded queries filter, introduced in November 2025, to separate brand traffic and measure a Google update's real effect.

Before blaming a Google update, check whether Googlebot can still crawl and index your pages. Here is a practical routine using Crawl Stats and Page indexing.

Forums and comment sections can attract spam that hurts the whole site. Here is how to clean up user-generated spam and stop it coming back.

Hacked content counts as spam even if you did not add it. Here is how to find injected pages, clean up, request a review and monitor recovery.

Near-duplicate city pages can fall under Google's doorway abuse policy. Here is how multi-location businesses can audit, enrich and consolidate them.

Core updates roll out over days or weeks. Here is what to monitor, what to hold back on and how to prepare your analysis while one is in progress.

Sites that drift off-topic can struggle in core updates. Here is how to audit sections, separate or remove what does not fit and rebuild a clear focus.

One keyword moving back up is not recovery. Here are the metrics, baselines and scorecard that actually prove an algorithm update recovery.

When core and spam updates run together, diagnosis gets harder. Here is how to untangle combined impact using dates, segments and policy checks.

Your outbound links matter as much as your backlinks. Here is how to audit affiliate, sponsored and guest post links and qualify them correctly.

When a site migration and a Google update land in the same weeks, the effects blur. Here is how to separate migration faults from algorithmic losses.

When a ranking drop coincides with a site change, reverting can feel safe. Here is how to tell whether a rollback will help, and how to test it properly.

Group URLs by template to see which page types a Google update really affected, then focus fixes where they will move the most pages.

Site-wide totals hide regional patterns. Learn how to segment Google update impact by country and language, including the 2026 EEA site reputation change.

Not every page hit by a core update deserves equal effort. Use a simple score based on lost clicks, value and fixability to plan your recovery work.

A drop can come from a human-issued manual action or an automated algorithmic change. Here is how to tell which you have and why the fix differs.

Core updates are announced, roll out over days or weeks, then marked complete. Here is how the process works, with real durations from Google’s dashboard.

A confirmed update has official dates and guidance; an unconfirmed one is observed volatility. Learn how to tell them apart and respond sensibly.

Google’s Search Status Dashboard is the official record of ranking updates and Search incidents. Here is how to read it and build it into your workflow.
Semrush Sensor, MozCast and other trackers measure SERP flux in different ways. Learn how they work, where they fall short and how to read them together.

No site is immune to Google updates, but some principles have held up for years. Here is how to build an SEO strategy that weathers algorithm changes.

How Google's core, spam and system updates differ in purpose, scope and recovery, with dated examples from the Search Status Dashboard.

A plain-English walk through every system in Google's ranking systems guide and the updates behind each one.

What “retired” means in Google's ranking systems guide, and the dates and legacy of Panda, Penguin, Hummingbird and helpful content.

A fact-checked look at SpamBrain: what Google has said, the published figures, its role in link spam updates and what remains unknown.

What Google has said about neural matching, how it compares with RankBrain and BERT, and how to write concept-led content.

How Google surfaces original content and reporting, what changed in September 2019, and how to protect your originals.

Why one site rarely gets more than two main listings in Google, how subdomains count, and what to do about it.

How Google's link analysis and PageRank still work, what Penguin and link spam updates changed, and what earns link value now.

How Google demotes sites with many valid copyright, legal or personal-information removals, and what site owners should do.

How Google surfaces authoritative sources, demotes low-quality content and shows content advisories on fast-changing topics.

Google's reviews system now updates continuously without announcements. Here is what it evaluates and how to monitor your review content.

E-E-A-T is a quality framework, not a single ranking signal. Here is what Google has said and how it relates to core updates.

Health, finance and safety sites often swing hardest in core updates. Here is why YMYL topics are held to a higher standard.

Quality raters help Google evaluate changes but don't rank websites. Here is how the guidelines and algorithm updates actually connect.

Page experience is no longer listed as a ranking system, but it still matters. Here is how Google describes it today.

Some Google systems act on whole sites, others page by page. Here is how to tell which kind of drop you have.

Google ships thousands of changes a year. Here is why your rankings move between announced updates and when to act.

Before a change reaches Search, Google tests it with raters and live experiments. Here is how the process works.

From Florida to Medic to March 2019 Core Update: how Google algorithm updates got their names, and why it matters.

Penguin, reviews and helpful content updates are no longer announced. Here is why, and how to monitor your site without them.

Twelve widespread beliefs about Google algorithm updates, checked against what Google has actually published.

The Search Console quirks that most often distort algorithm update analysis, and a clean method to work around them.

Google's long-standing 'no fix' message about core updates, explained in plain English with practical next steps.

Location, device, language, personalisation and rollout timing all change what searchers see during a Google update. Here is how to measure impact fairly.

SERP layout changes can cut clicks without any ranking loss. Learn the dated examples and how to diagnose them.

Core updates can change which kinds of pages rank, not just their order. Learn how to spot an intent shift and respond.

We counted every confirmed core and spam update from 2021 to October 2026 to show how often Google updates and how long rollouts take.

What Google has said about AI Overviews, AI Mode and core ranking, what remains unknown, and how to monitor AI visibility around updates.

Indexing bugs, ranking incidents and reporting errors have all been mistaken for Google updates. Here is how to tell the difference.

Testimony and exhibits from US v. Google described Navboost, RankBrain and other ranking systems. Here is what was reported, and what it means.

Sixty Google algorithm update terms explained in plain English, from core updates and classifiers to manual actions, SpamBrain and SERP volatility.

Rank trackers and Search Console often disagree after an update. Learn why, which data to trust, and how to measure real impact.

Which link building practices survived Penguin and Google’s link spam updates, which were neutralised, and how to earn links safely in 2026.

From Panda to the reviews system and the site reputation policy: how Google updates reshaped affiliate sites, and what still works in 2026.

Venice, Pigeon, Possum, Vicinity and core updates through a local business lens, with practical steps for when local visibility drops.

Core update timing in retail season, reviews updates, page experience and duplicate product content: what Google updates mean for online stores.

Medic, YMYL standards, reliable information systems and reviewed-by practices: what Google updates mean for health and medical websites.

Original reporting, Top stories, the first Discover core update and the site reputation policy: what Google updates mean for news publishers.

Programmatic pages, comparison content, scaled content risk and AI Overviews: what Google’s updates mean for SaaS SEO in 2026.

Reddit and forum gains since 2023, Google’s user-generated spam policy, and how community sites can grow while keeping spam out.

Google does not penalise AI use itself, but its updates hit sites that mass-produce unreviewed content. Here is what was confirmed and how to audit your site.

From the May 2024 manual actions to the 2026 EEA change, here is how Google’s site reputation policy reshaped parasite SEO and what to do now.

Food blogs have been squeezed by core updates, forum results and AI summaries. Here is what changed and what recipe creators can do.

Travel publishers face the reviews system, helpful content changes and AI answers. Here is what was confirmed and how to respond.

Finance and insurance sites face extra YMYL scrutiny. Here is how Payday Loan, Medic, reviews and site reputation enforcement shaped the niche.

Law firms feel Google updates in both the map pack and organic results. Here is what changed and how to protect your firm.

Duplicate listings, templated area pages and local updates make real estate SEO volatile. Here is what Google has documented and how to respond.

Since September 2023, many independent publishers lost most of their Google traffic. Here is what the sourced evidence shows and what Google said.

Google’s site reputation enforcement hit publisher coupon sections, and thin affiliate rules still apply to deal sites. Here is what changed.

B2B sites face Google updates through thin location pages, unfocused blogs and comparison posts. Here is what Google documents and how to respond.

From Panda to doorway policies and site diversity, here is how Google's updates have shaped directories and marketplaces, and how to audit yours.

Helpful content, site reputation abuse and AI Overviews have all reshaped education search. Here is what is confirmed and what to do about it.

Local updates, doorway city pages and Business Profile rules explained for plumbers, electricians and other trades, with a practical checklist.

A dated timeline of Google's (product) reviews updates and a practical guide to proving first-hand testing on tech and gadget review sites.

Scaled content abuse, scraping rules and deduplication explained for aggregators and programmatic SEO, with a template-by-template audit.

Some Google systems launched in English first and expanded later, and one policy now differs in Europe. Here is how to read multi-market data.

From the 2013 Payday Loan algorithm to today's spam updates and site reputation policy, here is how Google handles heavily spammed niches.

What the May 2022 core update and AI Overviews mean for dictionaries, wikis, lyrics and other reference sites, with a practical plan.

Analysts saw video platforms surge after the May 2022 core update. Here is what is confirmed and how creators can stay visible in Google Search.

The Pirate update, removal-based demotion, core update swings and the 2026 Discover core update explained for entertainment publishers.
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