Google Algorithm Updates & Changes: A Complete History

History of Google Algorithm Updates

Below we have compiled a full list of Google algorithm launches, updates, and refreshes that have rolled out over the years, as well as links to resources for SEO professionals who want to understand each of these changes.

Read more updates
History of Google Algorithm Updates
Advertisement

What are Google Algorithms?

Google’s algorithms are a complex system used to retrieve data from its search index and instantly deliver the best possible results for a query. The search engine uses a combination of algorithms and numerous ranking factors to deliver webpages ranked by relevance on its search engine results pages (SERPs).

In its early years, Google only made a handful of updates to its algorithms. Now, Google makes thousands of changes every year.

Most of these updates are so slight that they go completely unnoticed. However, on occasion, the search engine rolls out major algorithmic updates that significantly impact the SERPs such as:

Below, we have compiled a comprehensive list of Google algorithm updates sorted by their release dates.

All 2023 Updates

November 2023 Reviews Update

Google announced an algorithm update targeting review content on a page-level basis. It began on November 8 and is still rolling out.

Read:

Google Rolls Out November 2023 Reviews Update

Google Reviews Update Finished – What To Know

November 2, 2023

November 2023 Core Update

Google announced a core algorithm update, which began on November 2 and is still rolling out. To learn more about core updates, see the Google Search Central Blog.

Read:

Google Rolls Out November 2023 Core Update

October 5, 2023

October 2023 Core Update

Google announced a core algorithm update, which began on October 5 and was completed on October 19. To learn more about core updates, see the Google Search Central Blog.

Read:

Google Launches October 2023 Core Algorithm Update

Google’s October 2023 Core Update Now Complete

Google Fixes Discover Traffic Bug Caused By October Core Update

October 4, 2023

October 2023 Spam Update

Google announced the launch of the October 2023 Spam Update, which began on October 4 and was completed on October 19. This update applies globally and improves coverage in many languages,

Read:

Google Rolls Out October 2023 Spam Update

Google’s Webspam Report Explains Role Of SpamBrain

Google Completes Rollout of October 2023 Spam Update

September 14, 2023

September 2023 Helpful Content Update

Google announced the launch of the September 2023 Helpful Content Update, which began on September 14 and was completed on September 28. Site owners who want to learn more about helpful content updates can find more information on the Google Search Central Blog.

Read:

Google September 2023 Helpful Content Update – Changes To The Algorithm

Google Concludes Rollout Of September 2023 Helpful Content Update

August 22, 2023

August 2023 Core Update

Google announced a core algorithm update, which began on August 22 and concluded on September 7. To learn more about core updates, see the Google Search Central Blog.

Read:

Google Launches August 2023 Core Update

April 12, 2023

April 2023 Reviews Update

Google announced an algorithm update targeting review content on a page-level basis. It began on April 12 and finished rolling out on April 25. To learn more about core updates, see the Google Search Central Blog.

Read:

Google April 2023 Reviews Update Focuses Heavily On Experience

March 15, 2023

March 2023 Core Update

Google announced a core algorithm update, which began on March 15 and finished rolling out on March 28. To learn more about core updates, see the Google Search Central Blog.

Read:

Google Rolls Out March 2023 Core Algorithm Update

February 21, 2023

February 2023 Product Reviews Update

Google announced the launch of the February 2023 Product Reviews Update, which began on February 21 and was completed on March 18. The update applies to these languages globally: English, Spanish, German, French, Italian, Vietnamese, Indonesian, Russian, Dutch, Portuguese, and Polish. See the Google Search Central Blog to learn more about the product review system.

Read:

Google February 2023 Product Reviews Update

Google Clarifies Product Review Best Practices

Analyzing The Google February 2023 Product Review Update