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Google continues to refine how search works, but recent changes go far beyond traditional algorithm updates. Artificial intelligence now plays a very important role in how information appears on the results page. Instead of simply ranking websites, Google generates summaries, answers complex questions, and surfaces information directly within AI Overviews.

That means SEO today looks very different from what it did even a few years ago. Visibility no longer depends solely on ranking in the top organic positions. Businesses now compete for inclusion inside AI-generated responses, featured summaries, and zero-click search experiences.

Strong rankings still matter, but they are only one part of the equation. To maintain visibility, your content must align with how AI systems interpret authority, structure information, and present answers to users in real time.

If your business strategy does not adapt to these shifts, you risk more than a drop in rankings. You risk disappearing from the very responses your potential customers now rely on.

How Do Generative Engines Work (and How Does GEO Fit In)?

The Rise of AI-Driven Search: Competing for Citations, Not Just Clicks

Google’s results page now includes AI-generated summaries that combine information from multiple sources into a single response. This format changes how visibility is earned and measured.

Authority signals, topical depth, and entity recognition influence whether your content becomes part of an AI-generated answer. Rankings still matter, but inclusion inside summaries and citations now plays an equally powerful role.

At JH SEO, we work across traditional SEO, Generative Engine Optimization, Answer Engine Optimization, and Large Language Model Optimization. We focus on how search systems interpret and surface information, because visibility today depends on how AI understands your brand, not just where your page ranks. 

Below is a list of recent AI-driven updates. 

Google Search Generative Experience (SGE) / AI Overviews

First introduced: 2023

Google introduced AI-generated summaries directly within search results. Known as AI Overviews, these responses appear above traditional organic listings and provide users with synthesized answers pulled from multiple sources. This marked one of the biggest shifts in search history. Users can now receive detailed answers without clicking on a website. As a result, business visibility is no longer limited to ranking in the top ten blue links.

SEO strategies began adapting to prioritize structured content, clear answers, and authority signals that increase the likelihood of being referenced inside AI summaries.

Generative Engine Optimization (GEO)

First introduced: 2023

Generative Engine Optimization was developed in response to AI-generated search results. GEO focuses on positioning content inside AI-driven answers across platforms such as Google AI Overviews and large language models like ChatGPT.

Rather than optimizing only for keyword rankings, GEO structures content so AI systems can easily extract, interpret, and summarize it. Topic depth, entity clarity, and strong authority signals now influence visibility within generative responses.

Answer Engine Optimization (AEO)

First introduced: 2023

Answer Engine Optimization builds on strategies originally used for featured snippets and voice search. As AI summaries become more common, AEO emphasizes delivering concise, direct answers to specific questions.

With the growth of zero-click searches, businesses compete to become the trusted source that AI platforms reference when generating answers. Clear formatting, question-based content, and structured data play a larger role in this environment.

Large Language Model Optimization (LLMO)

First introduced: 2024

Large Language Model Optimization focuses on how AI models retrieve and present information. Unlike traditional SEO, LLMO considers how large language models interpret brand authority, entity relationships, and contextual relevance across the web.

This approach requires consistent brand mentions, authoritative content, structured formatting, and comprehensive topic coverage. Visibility now depends not only on rankings, but on how AI systems understand and represent your brand.

The Zero Click Search Era

First observed at scale: 2023

Recent data shows that a majority of searches now end without a user clicking through to a website. AI Overviews, featured snippets, and direct answers satisfy user intent within the search interface itself.

This shift changes how success is measured. Brand visibility, citations within AI summaries, and authoritative positioning matter just as much as traditional traffic metrics. Businesses that adapt to AI-driven discovery remain competitive in this new search landscape.

What is the Google Algorithm?

Google’s algorithm is a complex system that is constantly evolving. Google uses a number of factors to determine which results to show for a given query. These factors include things like the location of the user, the history of their searches, and the content of the websites.

Google also takes into account the authority of websites, as well as factors like how many other websites are linking to them. All of these factors are constantly being weighted and re-weighted by Google in order to deliver the most relevant results to users.

While Google’s algorithm is always changing, its goal remains the same: to provide users with the most relevant and useful results for their queries.

2025 Google Algorithm Updates

Google continues to release multiple updates each year to refine how it evaluates and ranks content. Core updates typically adjust how Google assesses relevance, authority, and overall content quality across the web. Spam updates focus on reducing manipulative tactics that degrade search results. These updates often cause ranking fluctuations as Google reassesses pages and recalibrates search results.

Google March 2025 Core Update

Release date: March 13, 2025

Google began rolling out the March 2025 core update in mid-March and the rollout completed at the end of that month. Like other broad core updates, this change reassessed ranking signals across many industries. Core updates attempt to improve search quality by reevaluating factors such as content usefulness, authority, and relevance. Websites with helpful, well-organized content often saw improved visibility, while thin or outdated pages experienced ranking volatility.

How Do Generative Engines Work (and How Does GEO Fit In)?

Google June 2025 Core Update

Release date: June 30, 2025

The June 2025 core update began rolling out on June 30 and finished mid-July. This update produced noticeable movement in rankings across multiple industries as Google recalibrated how it evaluates content quality. Many sites experienced temporary fluctuations during the rollout. Updates like this reinforce Google’s continued focus on people-first content that clearly answers user questions.

Google August 2025 Spam Update

Release date: August 26, 2025

Google launched the August 2025 spam update to further reduce manipulative or low-quality content in search results. The rollout continued into early September. The update targeted tactics such as keyword stuffing, link schemes, and large volumes of low-value automated content. Sites relying on these practices saw ranking declines, while websites focused on trustworthy and useful content typically benefited.

Google December 2025 Core Update

Release date: December 11, 2025

Google released the December 2025 core update on December 11, with the rollout completing later in the month. This marked the final confirmed core update of the year. Like previous core updates, the goal was to surface the most relevant and satisfying content for users. Broad updates like this often lead to temporary ranking changes as Google reevaluates pages across its index.

How Do Generative Engines Work (and How Does GEO Fit In)?

Past Algorithm Updates

1. Google Panda

Release date: February 23, 2011

Google Panda is a Google algorithm that was first introduced in 2011. The purpose of the algorithm is to penalize websites that have low-quality content.

Google Panda is updated periodically, and the most recent update was in July 2015. Google Panda has had a significant impact on the SEO industry, and many website owners have had to adapt their content strategy in order to avoid being penalized.

Despite the challenges, Google Panda has overall been a positive change for the SEO industry, as it has forced website owners to focus on producing high-quality content.

2. Venice (2012)

Release date: February 27, 2012

In 2012, Google released an algorithm update called Venice. The update was designed to improve the ranking of local results in Google’s search engine. The update included a number of changes, such as the inclusion of implied locations and the use of Google+ pages as a ranking signal. Google also began to show results from a user’s current location, even if they had not explicitly stated it in their search query. The Venice update was a significant change for Google, and it had a major impact on local search results.

3. Penguin (2012)

Release date: April 24, 2012

Google Penguin was an update that targeted websites that were violating Google’s Webmaster Guidelines by engaging in black-hat SEO practices such as keyword stuffing, link farms, and other manipulative linking schemes.

This update had a significant impact on many websites, with some sites seeing a drop in traffic of up to 80%. Google Penguin was initially rolled out as a filter for search engine results, but in September 2016, it was added to Google’s core algorithm.

4. Pirate (2012)

Release date: August 10, 2012

Google Pirate was an update that targeted websites that were engaged in copyright infringement. Websites that were affected by this update saw a significant drop in their search traffic. Google Pirate was initially rolled out as a filter for search engine results, but in October 2014, it was added to Google’s core algorithm.

5. Hummingbird (2013)

Release date: August 20, 2013

Google Hummingbird was a major update to Google’s algorithm that focused on understanding the user’s intent behind a query. Google Hummingbird placed more emphasis on natural language processing and semantic search.

This update had a significant impact on the way Google understands queries, and as a result, the way that Google ranks websites.

6. Pigeon (2013)

Release date: July 24, 2014

Google Pigeon was an update to Google’s local search algorithm. Google Pigeon gave more weight to the relevancy of a business listing in relation to the user’s current location. It considers searcher location when displaying results, allowing searchers to treat Google Search and Google Maps the same.

This update also expanded Google’s local search results from seven to ten listings.

7. HTTPS/SSL (2014)

Release date: 2014

Google HTTPS/SSL was an update that rewarded websites that were using SSL encryption by giving them a slight rankings boost. Google HTTPS/SSL was initially rolled out as a filter for search engine results, but in January 2017, it was added to Google’s core algorithm.

8. Mobilegeddon (2015)

Release date: April 2015

Google Mobilegeddon was an update that rewarded websites that were mobile-friendly by giving them a slight rankings boost. Google Mobilegeddon was initially rolled out as a filter for search engine results, but in May 2016, it was added to Google’s core algorithm.

9. RankBrain (2015)

Release date: October 26, 2015

It was a part of Hummingbird. Google RankBrain is an artificial intelligence system that Google uses to interpret and rank search queries. Google RankBrain is constantly learning and evolving, and it is now considered to be one of the most important ranking factors in Google’s algorithm.

10. Possum (2016)

Release date: September 1, 2016

“Possum” is the name given to an unconfirmed but documented update that appeared to most significantly impact Google’s local search algorithm.

Google’s algorithm update ​Possum​ applied several changes to its local ranking filter, improving the relevance of search results. This had a positive impact on businesses that were not doing well in organic rankings

11. (Mobile) Speed Update (2018)

Release date: July, 2018

Google announced that starting in July 2018, page speed will be a ranking factor for mobile searches. With the update, Google started to reward websites that were fast and responsive on mobile devices by giving them a slight rankings boost. Google’s (Mobile) Speed Update was initially rolled out as a filter for search engine results, but in July 2018, it was added to Google’s core algorithm.

12. Medic (2018)

Release date: August 1, 2018

Google Medic was an update that targeted websites in the medical and health industry. Google Medic placed more emphasis on expert sources and authoritative content. This update had a significant impact on many websites in the medical and health industry, with some sites seeing a drop in traffic of up to 50%.

13. BERT (2019)

Release date: October, 2019

Google BERT improved Google’s ability to understand the user’s intent behind a query. Google BERT placed more emphasis on natural language processing and semantic search. This update had a significant impact on the way Google understands queries, and as a result, the way that Google ranks websites.

14. Page Experience Update (2021)

Release date: May 2021

Google announced its latest algorithm update – the 2021 Page Experience Update. Google said they would be using a set of new metrics, called the Core Web Vitals, to measure the quality of a user’s experience on a webpage.

Google also announced that it would be giving more weight to pages that provide a great user experience. This update is significant because it shows that Google is placing increased importance on the experience a user has on a website.

This means that, in order to rank well on Google, it is now more important than ever to focus on providing a great user experience. There are many factors that go into providing a great user experience, but some of the most important are page load speed, mobile-friendliness, and intrusive interstitials. If you want to make sure your website is ready for the 2021 Page Experience Update, make sure you focus on these important factors.

Recent Algorithm Updates (2021 – 2022)

How Do Generative Engines Work (and How Does GEO Fit In)?

May 2022 Core Update

Release date: May 25, 2022

Core updates involve large changes. Google has announced that they will be rolling out a new algorithm update in May 2022. This update, known as the “Core Update,” is designed to improve the quality of search results.

It focuses on “quality signals” such as content, user experience, and authority. The update is also designed to address some of the common complaints about Google’s search results, such as the overdose of low-quality content and the lack of freshness. This update was completed on June 9th.

Product Reviews Update

Release date: Mar 23, 2022

Google announced on March 23rd that they had released an update to their products. The Product Reviews Update went live two days later, and according to Rank Risk Indexes reports a small spike in SERP fluctuations occurred during this time period – however it decreased after its initial appearance the next day (25th).

Desktop Page Experience Update

Release date: Feb 22, 2022

Pages that have a great user experience are highlighted in the latest update to our Desktop Page Experience. This includes pages with mobile-friendliness, intrusive interstitials, and safe browsing as well speed metrics known as Core Web Vitals for fast loading time!

Product Reviews Update

Release date: Dec 1, 2021

Google announced that the Product Review update had begun rolling out on December 1st, and it showed a spike in SERP fluctuations. The index increased high levels of fluctuation until December 7th when they returned to normal again by 8 pm EST (11:00 PM).

The announcement was completed after 21 days due to its large-scale release which took about three weeks for most websites’ algorithms to transition over all aspects including link-building strategies.

November 2021 Local Search Update

Release date: Nov 30, 2021

Local search updates are constantly being made to make the local experience better for users. This included an update that rebalanced some factors like relevance and prominence in order to give a more accurate portrayal of what’s available within your area when you type “local business” or something similar into Google Search! The new balances were implemented on December 8th.

November 2021 Core Update

Release date: Nov 17, 2021

Google announced on November 17th that they were to release the November Core Update that day. On the 18th Rank Risk Index reported a spike in SERP fluctuations both mobile and desktop, with normal levels restored by the next morning. This update was completed by the 30th of the same month.

November 2021 Spam Update

Release date: Nov 3, 2021

We all know how it feels when we get spammed with messages that our inboxes are not ready for. That’s why this update was completed on November 11th- the end of September.

This means you can rest assured knowing your site will never again be targeted by those ads causing unwanted clutter in an already stressful situation, which could lead users away from clicking through.

Page Title Rewrites

Release date: Aug 16, 2021

Google has been rewriting titles for pages in the SERP, and each page now has one title. Before this changeover from the old style to a new way of doing things most had different titles depending on what keyword they were optimized towards but not anymore.

July 2021 Link Spam Update

Release date: Jul 26, 2021

Google announced that they began rolling out the Link Spam update on July 26th. The purpose of this new measure is to identify and nullify spam across multiple languages, which was completed by August 24th.

July 2021 Core Update

Release date: Jul 1, 2021

Google announced that the July 2021 Core Update had been released. This is part two in a two-part core update. This update is designed to improve Google’s ability to understand and rank content, making it more relevant and helpful for users.

How Do Generative Engines Work (and How Does GEO Fit In)?

Spam Update Part 2

Release date: Jun 28, 2021

The second part of Google’s spam update was released on June 28th. It took only one day for this new software to go live and start cleaning up the web!

Spam Update

Release date: Jun 23, 2021

This update is designed to target spammy links and sites that Google believes are violating its guidelines.

Page Experience Update

Release date: Jun 15, 2021

On June 15, Google announced its Page Experience Update. This update is designed to help Google better understand how users interact with websites, and to ultimately improve the search experience for users.

Protecting People From Harassment Update

Release date: Jun 10, 2021

Google has announced an update to its algorithm that will help to protect people from online harassment.

The update, which is based on feedback from users and experts, is designed to make it easier for Google to identify and remove content that violates its policies on harassment and abuse. In addition, the update penalizes sites that host this type of content.

June 2021 Core Update

Release date: Jun 2, 2021

Google released its June 2021 Core Update on June 2, 2021. Google updates its algorithms on a regular basis to ensure that users are getting the most relevant and accurate results for their queries.

Product Reviews Update

Release date: Apr 8, 2021

Google has announced that Product Review Update will launch on April 8th, 2021. The update is designed to improve the quality of product review content on the web affecting both Google Search and Google Shopping. This update has an impact on how Google ranks product review content in search results.

Passage Ranking Update

Release date: Feb 10, 2021

Passage Ranking Update, announced in February 2021, is designed to improve the ranking of passages from websites. Google has stated that the update will help users finds the “right information faster,” and that it will primarily affect searches that are looking for specific facts or details.

How To Stay Up To Date With Google Algorithm Updates?

Google’s search algorithms are updated thousands of times per year. Most of these changes are minor. However, “core” updates are sometimes announced well ahead of the rollout to give webmasters the chance to prepare and optimize accordingly.

The easiest way to prepare for and benefit from any Google algorithm update is simply to review Google’s documentation on search engine optimization. Broadly speaking, if you can optimize your site from the outset such that you are producing high-quality content and providing great experiences for users and robots, you will not have much to worry about.

How Do Generative Engines Work (and How Does GEO Fit In)?