Google Algorithm & AI Update Tracker

Every Confirmed Update Since 2003

Every confirmed Google Search ranking update, live-synced hourly from Google's own Status Dashboard. Core updates, spam updates, and AI milestones in one filterable timeline.

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What Is a Google Algorithm Update?

A change to the ranking systems Google uses to order search results — pages that ranked well may drop, and buried pages may rise. Google calls these ranking updates; the SEO community calls them algorithm updates. Same thing.

Google ships thousands of small ranking tweaks every year. Only a few get a public name — the ones Google itself announces on the Google Search Status Dashboard, the Search Central blog, the main Google blog, or via the official @googlesearchc and @searchliaison accounts on X. Those are the four channels we treat as authoritative.

Every row in the table is tagged as either Confirmed or Unconfirmed. A row is Confirmed when its source link comes from one of those four official Google channels (or the Search Status Dashboard, which feeds this tracker hourly). A row is Unconfirmed when Google never publicly acknowledged it — the date and effects come from credible third-party reporting (e.g. Search Engine Land) or community observation. Older updates from before Google maintained a public dashboard are more likely to be Unconfirmed.

How to Use This Tracker

Step 1

Is an update rolling now?

Watch the live banner above. Synced from Google every hour — if nothing's there, nothing's rolling.

Step 2

Did an update hit you?

Match the date your traffic shifted against the timeline. Use the year filter or search to narrow it down.

Step 3

Wait out the rollout.

Rankings stay volatile until an update completes. The Duration column shows how long each one took.

Understanding Update Types

Every update in the timeline above falls into one of four categories. Knowing the type tells you what Google is changing, how long it usually lasts, and what to do about it.

Core Updates 3–5 per year · 2–4 weeks

Broad re-evaluation of content quality

Core updates retune Google's entire ranking system — they are not targeted at specific sites or niches, but at improving how Google judges content quality, relevance, and helpfulness across the board. The longest on record is the March 2024 core update at 45 days.

Spam Updates Irregular · hours to weeks

Enforcement against guideline violations

Target sites that break Google's webmaster guidelines: purchased or spammy link profiles, cloaking, thin AI-generated content farms, and hidden text or redirects. Spam updates can complete in under 24 hours and may be global or language-specific.

Helpful Content Now folded into core

Site-wide signal for people-first content

Introduced in August 2022. Rewards content created for people rather than search engines and applies a site-wide signal — if a significant share of a site's content is unhelpful, every page can be affected. The system is now integrated into core updates.

AI Milestones Foundational launches

Shifts in how Search itself works

Not algorithm updates in the traditional sense — these are technology launches that changed Search itself: Hummingbird (2013), RankBrain (2015), BERT (2019), MUM (2021), AI Overviews (2024), AI Mode (2025). Search has been AI-powered for over a decade; recent launches simply made it visible.

How Google Announces Algorithm Updates

Google publishes named updates through two official channels. Everything in this tracker comes from one of them.

Live source 2021–present

Google Search Status Dashboard

Authoritative real-time source for named ranking updates. Shows when an update started, status messages during rollout, and the completion timestamp. This tracker pulls directly from the Dashboard's public JSON API every hour — no interpretation, no delay.

Policy & history 2003–present

Google Search Central blog

Where Google publishes broader system announcements and the pre-Dashboard history of named updates. Pre-2021 entries in this tracker are reconstructed from these posts, official Google Search Liaison statements, and other on-the-record confirmations going back to the Florida update (2003).

Worth knowing: Google makes many small ranking changes every day that are never formally announced. Only the named, confirmed updates appear in this tracker — by design.

Related tools in your SEO workflow:

Frequently Asked Questions

How do I know if Google is updating its algorithm right now?

Check the live banner at the top of this tracker. If a named update is currently rolling, an amber banner shows the update name and start date. The tracker is synced from Google's Search Status Dashboard every hour, so the banner reflects the current state within 60 minutes of any change. If no banner is visible, no named update is currently in progress according to Google's official announcements.

What should I do during a Google algorithm update?

Wait until the rollout is complete before drawing conclusions or making major changes to your site. Rankings fluctuate throughout a rollout — what looks like a penalty on day 3 may recover by day 10. Once the update is complete, compare your traffic and rankings to the pre-update baseline and look for patterns: which pages declined, what they have in common, and whether any Google guidance published with the update provides clues. Avoid making drastic changes mid-rollout.

How long do Google algorithm updates take to roll out?

It varies significantly by update type. Core updates average around 15 days, but range from 4 days to 45 days (the March 2024 core update). Spam updates can complete in under 24 hours or take several weeks. Helpful content and reviews updates have historically taken 2–4 weeks. The 'Duration' column in the tracker shows the actual measured rollout time for each completed update.

Is this tracker's data from Google directly?

For 2021 onwards, yes — the tracker pulls directly from Google's official Search Status Dashboard JSON API (status.search.google.com/incidents.json), which is the same source Google uses for its own dashboard. The data is synced hourly. For updates before 2021, the entries are reconstructed from Google's own public announcements at the time — Search Central blog posts, Google Search Liaison statements, and other on-the-record confirmations — going back to the first named update (Florida, 2003).

What does the Confirmed / Unconfirmed badge next to an update mean?

Every row in the tracker is tagged as Confirmed (green check) or Unconfirmed (amber pill). Confirmed means Google itself publicly announced the update on one of four official channels: the Google Search Status Dashboard, the Search Central blog, the main Google blog, or the official @googlesearchc and @searchliaison accounts on X. Unconfirmed means Google never publicly acknowledged the update — the date and impact are based on credible third-party reporting (Search Engine Land, etc.) or widely observed community evidence. Click any row to expand it and see the actual source URL.

Why does this tracker show AI Milestones alongside algorithm updates?

Because understanding algorithm updates without understanding Google's AI evolution gives an incomplete picture. The shift from keyword matching to semantic understanding (Hummingbird, 2013) fundamentally changed what a 'good' page means to Google. RankBrain, BERT, and MUM each deepened that understanding. AI Overviews and AI Mode changed how results are displayed and what content gets cited. These milestones explain why some sites that followed perfect traditional SEO practices have seen declining visibility — the definition of 'good' has changed at the model level, not just the update level.

What is the difference between a core update and a spam update?

Core updates re-evaluate how Google judges content quality, helpfulness, and relevance across the entire index. They affect all types of sites and queries, and Google typically runs 3–5 per year. Spam updates specifically target manipulative tactics: purchased links, cloaked content, AI-generated spam, and similar webmaster guideline violations. Core updates change the scoring criteria; spam updates enforce the existing rules more aggressively. A site with genuinely good content can lose rankings in a core update without any spam — it simply ranks lower by the new criteria.

How often does Google release algorithm updates?

Google makes thousands of small changes to its algorithm every year, most of which are never announced. Named, confirmed updates — the ones tracked here — occur roughly 10–20 times per year based on recent history. Core updates are the most anticipated, appearing 3–5 times annually. Spam updates and system changes occur throughout the year on a less predictable schedule.

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