Every year, Google changes its search algorithm thousands of times — mostly small tweaks, but sometimes major updates that shift rankings across the web. Understanding these updates helps you build a website that keeps ranking well for the long term.
Google has a long history of algorithm changes, from the early 2000s to today. Each major update aimed to give searchers better results — and to reduce the reward for low-quality or manipulative tactics.
Manual actions vs algorithmic changes
- Manual action – a Google reviewer finds that a site breaks Google’s spam policies (for example unnatural links or thin, auto-generated pages). You see it in Search Console under Manual actions and must fix the issue and request reconsideration.
- Algorithmic impact – rankings change because an algorithm update reassesses your site. There is no notification; you recover by improving quality.
Major Google algorithm updates
Google Panda
Launched: February 2011
Targets thin, duplicate and low-quality content. Since 2016 it has been part of Google’s core algorithm.
Google Penguin
Launched: April 2012
Targets manipulative link building — paid links, link schemes and over-optimised anchor text. Since 2016 it works in real time as part of the core algorithm.
Pirate
Launched: August 2012
Demotes sites with many valid copyright (DMCA) removal notices.
Exact Match Domain (EMD)
Launched: September 2012
Stopped low-quality sites from ranking just because their domain name matched a search keyword.
Payday Loan
Launched: June 2013
Targets spammy queries such as payday loans, casinos and adult content.
Hummingbird
Launched: August 2013 (announced September 2013)
A rewrite of Google’s core algorithm that focuses on the meaning and context of whole queries rather than single keywords.
Pigeon
Launched: July 2014
Improved local search results by tying them more closely to traditional web ranking signals and distance.
Mobile-friendly update
Launched: April 21, 2015
Boosted mobile-friendly pages in mobile search results. Today Google uses mobile-first indexing for all sites.
RankBrain
Launched: 2015
Google’s first major machine-learning system in ranking, helping to understand new and unusual queries.
Possum
Launched: September 2016
Changed local results — for example filtering similar businesses at the same address.
Fred
Launched: March 2017
An unconfirmed update that hit ad-heavy, low-value sites focused on revenue over users.
Medic (core update)
Launched: August 2018
A broad core update with a big impact on health, finance and other “Your Money or Your Life” sites.
BERT
Launched: October 2019
A language model that helps Google understand the context of words in searches.
Page Experience / Core Web Vitals
Launched: June–August 2021
Added page experience signals such as loading, interactivity and visual stability.
Product Reviews updates
Launched: 2021–2023
Rewarded in-depth, first-hand product reviews over thin summaries; later folded into core ranking.
Helpful Content Update
Launched: August 2022
Targeted content written mainly for search engines rather than people. In March 2024 it became part of the core ranking systems.
Spam updates and policies
Launched: Ongoing (major update March 2024)
Target scaled content abuse, expired domain abuse and site reputation abuse, using systems such as SpamBrain.
Core updates
Launched: Several times a year
Broad changes to how Google assesses content quality and relevance overall.
How to keep your rankings safe through updates
- Make sure your website is mobile-friendly and responsive on all devices.
- Use HTTPS on your whole domain.
- Keep pages fast — aim for good Core Web Vitals.
- Keep your site structure clean and easy to crawl.
- Publish original, helpful content written for people; avoid duplicate and thin pages.
- Earn links naturally; avoid buying links or joining link schemes.
How to avoid Google penalties
- Understand each update and what Google wants — follow Google Search Central.
- Audit your content regularly and improve or remove weak pages.
- Maintain a clean website architecture and internal linking.
- Update important content so it stays accurate and useful.
- Check Search Console for manual actions and security issues.
Frequently asked questions
How often does Google update its algorithm?
Thousands of times a year. Google confirms only the larger ones, such as core updates and spam updates, which happen several times a year.
What should I do if my rankings drop after an update?
Check Search Console for manual actions, compare which pages dropped, and improve content quality, helpfulness and user experience. Recovery usually comes with later updates.
Are Panda and Penguin still active?
Yes, as part of Google’s core ranking systems rather than separate updates.
