# Hummingbird

Category: [Google Updates & Algorithms](https://seo-geo-glossary.com/en/glossary/category/google-updates-algorithms/) › [Historical updates & events](https://seo-geo-glossary.com/en/glossary/category/google-updates-algorithms/historical-updates/) · Also known as: Google Hummingbird · Historical

In SEO, **Hummingbird** is a major improvement to Google's ranking systems from 2013, not a bird or an app. Google lists it among retired systems, which makes it a historical term.

## What changed with Hummingbird?

Google's ranking-systems guide describes Hummingbird as a major improvement to its overall ranking systems and dates it to August 2013. According to reports, Google announced it publicly in late September 2013. Reports describe it as a move towards understanding the meaning of a whole query rather than matching individual words, which helped with long, conversational searches.

Unlike Panda or Penguin, which responded to specific quality problems, Hummingbird affected the engine as a whole (Brafton).

Later systems continued this direction. Google lists RankBrain, BERT, neural matching and MUM as AI systems that match queries and content by meaning. There is no Hummingbird-specific action for site owners today. The term mostly appears in histories of Google updates.

## Example

For the query "where can I get a replacement part for my dishwasher", a page about spare parts for household appliances can match, even if it does not contain the word "dishwasher" in that phrasing.

## At a glance

- **Started:** August 2013
- **Completed:** retired, Google gives no end date
- **Type:** Overhaul of the ranking systems
- **Affects:** Understanding queries as a whole (according to reports)
- **Confirmed by:** yes, Google dates it to August 2013
- **Status:** retired (Retired systems)
- **Docs:** [Google: Ranking systems guide](https://developers.google.com/search/docs/appearance/ranking-systems-guide)

Last checked: October 8, 2026

## Google ranking systems 2010–2024

- **June 8, 2010:** Google announces the completion of Caffeine, its new web indexing system. Google says it delivers 50 percent fresher results than the previous index. ([Source](https://googleblog.blogspot.com/2010/06/our-new-search-index-caffeine.html))
- **February 24, 2011:** Google announces a ranking change against low-quality and copied content that noticeably affects 11.8% of queries. Google later refers to the system by its nickname “Panda”. ([Source](https://googleblog.blogspot.com/2011/02/finding-more-high-quality-sites-in.html))
- **November 3, 2011:** Google improves how it decides when to favour recent results. According to Google the change affects roughly 35 percent of searches and builds on Caffeine. ([Source](https://googleblog.blogspot.com/2011/11/giving-you-fresher-more-recent-search.html))
- **January 19, 2012:** Google launches a change that looks at page layout. Pages with little content and many ads above the fold may rank lower. ([Source](https://developers.google.com/search/blog/2012/01/page-layout-algorithm-improvement))
- **April 24, 2012:** Google announces a change against webspam, later nicknamed “Penguin”. It affects about 3.1% of English queries and roughly 3% of German queries. ([Source](https://developers.google.com/search/blog/2012/04/another-step-to-reward-high-quality))
- **August 2013:** Hummingbird, which Google describes as a major improvement to its overall ranking systems. ([Source](https://developers.google.com/search/docs/appearance/ranking-systems-guide))
- **2015:** Panda becomes part of the core ranking systems. Google now lists it among its retired systems. ([Source](https://developers.google.com/search/docs/appearance/ranking-systems-guide))
- **2015:** Google launches RankBrain, the first deep learning system used in Search. It relates the words in a query to real-world concepts. ([Source](https://blog.google/products/search/how-ai-powers-great-search-results/))
- **April 21, 2015:** Google starts rolling out the mobile-friendly update, boosting mobile-friendly pages in mobile search results. The industry unofficially calls it “Mobilegeddon”. ([Source](https://developers.google.com/search/blog/2015/04/rolling-out-mobile-friendly-update))
- **September 23, 2016:** Penguin becomes part of the core algorithm and now works in real time. Before that, the list of affected sites was only refreshed periodically. ([Source](https://developers.google.com/search/blog/2016/09/penguin-is-now-part-of-our-core))
- **2018:** Google introduces neural matching. The system helps relate queries to pages through underlying concepts. ([Source](https://blog.google/products/search/how-ai-powers-great-search-results/))
- **2018:** Launch of SpamBrain, Google’s AI-based spam prevention system. Google says it identified nearly six times more spam sites in 2021 than in 2020. ([Source](https://developers.google.com/search/blog/2022/04/webspam-report-2021))
- **October 25, 2019:** Google applies BERT to ranking and featured snippets. At launch it affects about one in ten English searches in the US. ([Source](https://blog.google/products/search/search-language-understanding-bert/))
- **October 15, 2020:** Google presents passage ranking, which can assess individual passages of a page for a query. Google expects it to improve 7 percent of queries. ([Source](https://blog.google/products/search/search-on/))
- **April 8, 2021:** First product reviews update. It rewards in-depth product reviews and initially covers English-language reviews only. ([Source](https://developers.google.com/search/blog/2021/04/product-reviews-update))
- **May 18, 2021:** Google introduces MUM, a model trained across 75 languages. Google calls it 1,000 times more powerful than BERT. ([Source](https://blog.google/products/search/introducing-mum/))
- **July 26, 2021:** First link spam update. It aims to identify and nullify link spam across multiple languages and rolls out over two weeks. ([Source](https://developers.google.com/search/blog/2021/07/link-tagging-and-link-spam-update))
- **August 25 to September 9, 2022:** With the helpful content update, Google aims to show more original, helpful content written for people. ([Source](https://status.search.google.com/incidents/sbKc4YSptrSxcUZFDKwU))
- **December 5, 2022 to January 12, 2023:** December 2022 helpful content update. Google says it improves the classifier and works globally in all languages. ([Source](https://status.search.google.com/incidents/XMdX5PmbMvKW4fv3CRvn))
- **April 12 to April 25, 2023:** The product reviews update becomes the reviews update. Google says it now covers reviews of products, services and other things. ([Source](https://status.search.google.com/incidents/5XRfC46rorevFt8yN8iR))
- **September 14 to September 28, 2023:** September 2023 helpful content update. Google says it improves the classifier again. ([Source](https://status.search.google.com/incidents/53diuQvcEsgzqXTPBb8p))
- **November 8 to December 7, 2023:** November 2023 reviews update. As the reviews system is now improved at a regular pace, Google no longer posts future updates on the Status Dashboard. ([Source](https://status.search.google.com/incidents/VqRTcmyQCwfpuYeaVNfn))
- **March 2024:** The helpful content system becomes part of the core ranking systems. Google now lists it among its retired systems. ([Source](https://developers.google.com/search/docs/appearance/ranking-systems-guide))
- **March 5, 2024:** Three new spam policies against expired domain abuse, scaled content abuse and site reputation abuse. The March 2024 spam update launches the same day. ([Source](https://developers.google.com/search/blog/2024/03/core-update-spam-policies))
- **May 5, 2024:** The site reputation abuse policy takes effect. Google had given site owners time to prepare since March. ([Source](https://developers.google.com/search/blog/2024/03/core-update-spam-policies))
- **August 5, 2024:** In the US antitrust case against Google, the court describes Navboost as a signal that memorises which documents users click for a query. This is a court document, not a Google publication. ([Source](https://storage.courtlistener.com/recap/gov.uscourts.dcd.223205/gov.uscourts.dcd.223205.1033.0_1.pdf))
- **November 19, 2024:** Google tightens the site reputation abuse policy. First-party involvement does not change the assessment when third-party content exploits the host site’s ranking signals. ([Source](https://developers.google.com/search/blog/2024/11/site-reputation-abuse))

## Related terms

- [RankBrain](https://seo-geo-glossary.com/en/glossary/rankbrain/index.md)
- [BERT](https://seo-geo-glossary.com/en/glossary/bert/index.md)
- [Panda update](https://seo-geo-glossary.com/en/glossary/panda-update/index.md)
- [Google algorithm update](https://seo-geo-glossary.com/en/glossary/google-algorithm-update/index.md)
- [Knowledge Graph](https://seo-geo-glossary.com/en/glossary/knowledge-graph/index.md)

## Sources

- [Guide to Google Search ranking systems – Google Search Central](https://developers.google.com/search/docs/appearance/ranking-systems-guide)
- [Hummingbird algorithm – Brafton (secondary)](https://www.brafton.com/glossary/hummingbird-algorithm/)
- [Google Hummingbird update – Momentic (secondary)](https://momenticmarketing.com/google-updates/hummingbird)

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Last updated: October 8, 2026
URL: https://seo-geo-glossary.com/en/glossary/hummingbird/