Timeline of Google Search

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Google Search, offered by Google, is the most widely used search engine on the World Wide Web as of 2023, with over eight billion searches a day. This page covers key events in the history of Google's search service.

For a history of Google the company, including all of Google's products, acquisitions, and corporate changes, see the history of Google page.

Big picture

Time period Development.
1996–1997 Development of basic technology, launch of search engine, attachments like gmail and classroom come later.
2000 Internationalization: search is launched in 13 new languages.
2001–2004 Google launches many new search categories, such as Google News, Google Books, and Google Scholar.
2002 onward The beginning of explicitly announced search algorithm updates.
2008–2010 Faster search experience for user: Google Suggest (experimental launch 2004, integrated into main search engine 2008), Google Instant (2010), and Google Instant Previews.
2005, 2009, 2012 Google starts using web histories to help in searches (2005), experimentally launches social search (2009), and launches Search Plus Your World (2012).
2009–2010 Caffeine update for faster indexing of the web and fresher and on-topic search results.
2011–2014 Google Panda (an update to some parts of Google's search algorithm) is released in 2011, with announced updates continuing till September 2014 (Panda 4.1). Stated goals include cracking down on spam, content farms, scrapers, and websites with a high ad-to-content ratio.
2012–2014 Google Penguin (an update to some parts of Google's search algorithm) is released in 2012, with the goal of concentrating on webspam. The last named update is in October 2014. Starting December 2014, Penguin moves to continuous updates (Penguin Everflux).
2012 onward Google integrates Google Knowledge Graph into its search results.
2013 Google releases Google Hummingbird, an update that may enable semantic search in the future and integrate better with the Knowledge Graph.
2014 onward Google makes a major update to its algorithm for local search. The update gets the name Google Pigeon.
2015 onward Google alerts webmasters to mobile usability issues in January, and announces a major update to its search algorithm, to be rolled out starting April 21, 2015, that will heavily demote mobile-unfriendly sites for web searches on mobile devices.
2019 April In early April 2019, a large de-indexing bug was reported to be dropping pages out of the index. Google wrote on April 11, 2019, "The indexing issue has now been fully resolved. We apologize for the inconvenience. We appreciate your patience as we restored normal operation."

Full timeline

Year Month and date (if available) Event type Event
1996 August Prelude Larry Page and Sergey Brin, graduate students in computer science at Stanford University, begin working on BackRub, the precursor to Google Search. Page begins work alone initially, supported by a National Science Foundation Graduate Fellowship, and Brin joins him shortly thereafter. The project is an outgrowth of their work on the Stanford Digital Library Project.[1][2][3][4] Scott Hassan is the project's lead programmer, writing much of the code for the original Google Search engine.[5][6] Web crawling begins in March.
1997 September 15 Domain The domain Google.com is registered.[7]
2000 May 9 Internationalization Google adds ten new languages: French, German, Italian, Swedish, Finnish, Spanish, Portuguese, Dutch, Norwegian and Danish.[7]
2000 September 12 Internationalization Google launches search services in Japanese, Chinese, and Korean.[8]
2000 October Advertising Google AdWords launches with 350 customers.[7]
2000 December User experience Google Toolbar is released, allowing people to search without visiting the Google homepage, and also offering them more information about the webpages they visit.[7] Some commentators have argued that this marks the beginning of search engine optimization and the Google Dance.[9]
2001 July Search category Google launches Google Image Search with over 250 million images in its search database.[7]
2001 December Review Google releases its first annual Google Zeitgeist.[7]
2002 September Search category Google launches Google News.[7]
2002 September Search algorithm update Google makes the first publicly announced update to its search algorithm.[9] A number of Internet commentators view this as the death of PageRank (the name for Google's system for ranking pages) and a significant decline in the quality of Google's search results.[10][11][12]
2003 February Search algorithm update Google announces the Boston update at SES Boston. The update saw major algorithmic changes and the promise of frequent index updates.[9]
2003 April Search algorithm update Google announces the Cassandra update. The update claims to crack down on link spam, including mutual links between co-owned websites, as well as hidden text and hidden links.[9][13]
2003 May Search algorithm update Google announces the Dominic update. Commentators believed that the update affected the way backlinks were counted, and many webmasters reported new bots from Google that bounced.[9][14]
2003 June Search algorithm update Google announces what will later turn out to have been the last of its regular monthly updates. This update is called the Esmeralda update.[9][15]
2003 July Search algorithm update Google announces the Fritz update, and also a change to its update policy, as it moves towards continuous rather than batch processing of updates.[9][16][17]
2003 December Search category Google launches Google Print, that would later become Google Books.[7]
2004 January Search algorithm update Google announces the Austin update, to continue with the work of combating SEO tactics that Florida had made good progress on.[9][18][19]
2004 February 17–20 Search algorithm update Google announces the Brandy update, a massive index expansion, Latent Semantic Indexing (LSI), increased attention to anchor text relevance, and the concept of link "neighborhoods."[9][20][21]
2004 October Search category Google launches Google Scholar, its search service for academic publications.[7]
2005 June User experience Google launches Google Mobile Web Search.[7]
2005 September–November Search algorithm update Google announces and rolls out the Jagger update in three stages, one in September, one in October, one in November.[9][22][23]
2006 May Review Google releases Google Trends to make it easy to visualize the popularity of searches over time.[7]
2008 August 25 User experience Google Suggest (later called Autocomplete), originally launched as a Labs feature in December 2004, now becomes part of Google's main site.[7][24][25]
2009 October 26 Search category Google introduces Social Search as a Google Labs feature.[26] The feature is expanded further in late January 2010.[27]
2010 September 8 User experience Google launches Google Instant, described as a search-before-you-type feature: as users are typing, Google predicts the user's whole search query (using the same technology as in Google Suggest, later called the autocomplete feature) and instantaneously shows results for the top prediction.[28][29][30] Google claims that this is estimated to save 2–5 seconds per search query.[31] SEO commentators initially believe that this will have a major effect on search engine optimization, but soon revise downward their estimate of the impact.[9][32]
2011 January–February Search algorithm update Foreshadowing Google Panda, Google penalizes Overstock.com and JCPenney for the use of SEO tactics.[9][33][34]
2011 October 18 User experience, SEO data Google announces that they will start encrypting all search queries for security purposes.[35] This disrupts organic keyword referral data for many websites, making search engine optimization harder.[36]
2012 December 2011-January 2012 (announced January 5) Search algorithm update, user experience A 30-change pack of updates, including landing-page quality detection, more relevant site-links, more rich snippets, and related-query improvements.[37]
2012 May 16 Search algorithm update Google starts rolling out Knowledge Graph, used by Google internally to store semantic relationships between objects. Google now begins displaying supplemental information about objects related to search queries on the side.[9][38][39][40]
2012 May 25 Search algorithm update Google rolls out an update of Google Penguin, variously called Penguin 1.1 and Penguin 2.[41]
2012-13 November 2012-January 2013 Search algorithm update Google releases updates to Google Panda: #21 (November 5, affecting 1.1% of queries), #22 (November 21, data refresh only), #23 (December 21, data refresh only, affecting 1.3% of queries), and #24 (January 22, affecting 1.2% of queries).[9]
2012 December 4 Search algorithm update Google adds Knowledge Graph to non-English queries, and says that the change goes beyond translation and also adds enhanced Knowledge Graph capabilities.[9][42][43]
2013 August 6 User experience Google adds a new feature called "in-depth articles" in its search results to feature long-form content of long-lasting value.[9][44][45]
2014 May 16 Search algorithm update Payday Loans 2.0 algorithm change is purely low quality external link related and over-optimization. This specifically goes after high search, spammy queries such as “Payday Loans”. Google is trying to devalue sites that perform in link buying and other black hat methods to game the algorithm.

[46]

2014 July 3 Team Matt Cutts, a Distinguished Engineer at Google who has been heading the web spam team since 2004, goes on leave till October.[47] He later extends his leave through 2015.[48]
2014 July 24 Search algorithm update Google announces the rollout of Google Pigeon, a major update to its search algorithm for "local" searches such as searches related to events or businesses near one. The Pigeon update gives more weight to various search signals to deliver more relevant local results.[9][49][50]
2014 August 6 Search algorithm update Google announces search results will give preference to sites using HTTP Secure and SSL encryption. This added ranking signal would be a "lightweight" ranking boost.[51]
2014 August 28 User experience Google Authorship is removed completely from search results, as already in December 2013 it reduced number of images showing in SERP's. Now it's totally gone to extinction due to lower adaptation rate by authors, to reduce mobile bandwidth and to improve user experience.[9][52][53][54]
2014 October 21 Search algorithm update Pirate 2.0 update dubbed by SEO commentators following the similar update in 2012 which penalized sites deemed as violators of copyright laws. This refresh targets a relatively small number of known sites causing dramatic drops in ranking. In tandem with this Google introduces a new Ad Format for queries where people may be searching for copyrighted media, requiring publishers to purchase ads to promote original content over the unauthorized copies.[9][55][56][57]
2014 December 10 Search algorithm update Google announces that Google Penguin will switch to continuous updates, also known as "Penguin Everflux".[9][58]
2014 December 22 Search algorithm update Google Pigeon, the local search algorithm update, is rolled out to the United Kingdom , Canada , and Australia .[9][59]
2015 February 4 Search algorithm update Many independent sources report significant fluctuations in Google Search results, but Google does not officially confirm any changes.[9][60]
2015 April 21 (pre-announced February 26) User experience, search algorithm update (mobile usability) On January 19, 2015, Google sends emails to webmasters about mobile usability issues on the websites, leading people to speculate that a major mobile usability update for search rankings is underway.[61] On February 26, 2015, Google announces that demotion of mobile-unfriendly sites for searches on mobile devices will commence on April 21, 2015.[62][63][64]
2015 May 3 Search algorithm update Google says it has made a core algorithm change impacting "quality signals". Before the official announcement, commentators had dubbed the changes as "Phantom 2".
2015 July 17 Search algorithm update Google announces an update to Google Panda, dubbed as Panda 4.2 by commentators. Google says that the change affects between 2% and 3% of search queries. Search engine commentators do not notice any sharp changes to search traffic, and expect the changes to be rolled in gradually.[65][66] By September, it appears that many websites that had seen gains due to Panda 4.2 are seeing those gains reversed.[67]
2015 October 26 Search algorithm update (announcement/confirmation) Google announces that RankBrain, a machine learning-based engine (using neural networks), has been the third most influential factor in its search rankings for the last few months. The actual rollout date is not confirmed, but commentators pin the launch time to Spring 2015. It is most useful for new search queries, that account for about 15% of search queries.[9][68][69]
2016 February 3 Team Amit Singhal steps down from his position as Vice President of Search at Google after 15 years in that role. He is replaced by John Giannandrea who works in artificial intelligence at Alphabet, Google's parent company.[70][71]
2016 February 18 and 23 Advertising Google makes changes to Google AdWords, removing right-column ads and rolling out 4-ad top blocks on searches with commercial intent. The change has implications on organic search CTRs for such searches, since it pushes the organic search results further down the page, potentially reducing organic search CTRs.[72] Up to three additional ads may be shown below the 10 organic search results, and additional ads may be shown on the second page.[9][73][74][75]
2016 May 12 (announced March 16) User experience, search algorithm update (mobile usability) Google rolls out a ranking signal boost to benefit mobile-friendly websites on mobile devices. This is the second update of this sort, with the previous update in April 2015.[9][76][77]
2016 September 27

(announced September 23)

Penguin 4.0 After almost two years of waiting, Google finally announced a major Penguin update. They suggested the new Penguin is now real-time and baked into the "core" algorithm. The rollout of the new, "gentler" Penguin algorithm, which devalues bad links instead of penalizing sites.[9]
2017 January 10 Intrusive Interstitial Penalty Google started rolling out a penalty to punish aggressive interstitials and pop-ups that might damage the mobile user experience. Google also provided a rare warning of this update five months in advance.[9]
2018 March 8 Core Update "Brackets" Google Made a core update into their algorithm this updated was termed as "Brackets" by Glenn Gabe. This update effected the search ranks to improve it further.
2019 December 9 BERT - Update In October Google updated its algorithm to support BERT - NLP model. This update helps google to improve the interpretation of natural languages. In December Google extended the BERT update internationally into 70 languages. They confirmed that this algorithm update was rolled out to 70 languages
2021 November 30 (rollout begins) - December 8 Vicinity Update The Vicinity Update is the biggest update to local SERPs since 2017. This algorithm update made it so that smaller businesses that are closer to the searcher will show up as a search result, rather than only the dominant, larger businesses that are farther away.
2022 May 25 (rollout begins) - June 9 May 2022 Core Update The May 2022 Core Update was shown to negatively affect the rankings for most news and media publishers, especially generalist news sites that cover a variety of topics. Reference sites like dictionaries, unofficial Wikis, lyric websites, and stock photo sites also saw a drop in rankings, while video site like YouTube, TikTok, Disney+, Hulu, and Twitch saw the largest gains in ranking.[78][79]
2022 Aug 25 Helpful Content Update The August 2022 Helpful Content update completed it's rollout on September 9. The target of the update was, “content that seems to have been primarily created for ranking well in search engines rather than to help or inform people."[80]
2022 Sep 12 September 2022 Core Update[81] The update took 14 days.[82] Volatility was lower than many prior similar updates.[83]
2022 Dec 5 December 2022 Helpful Content Update The update took 38 days to roll out. [84] It reportedly improves Google's classifier, and works across all content and all languages.
2023 Mar 15 March 2023 Core Update The March 2023 Core Update caused a larger spike in volatility that the September Update. According to Semrush, the largest impacted sectors were Shopping and A&E.
2023 Aug 22 August 2023 Core Update The update took 16 days to roll out.[85] The biggest gains seemed to be felt by UGC and Reddit, as well as gains from site showing evidence of experience in the subject.[86]
2023 Sep 14 September 2023 Helpful Content Update This update contained important changes to how sites are ranked including demoting third-party content hosted on sub-domains, and loosening the guidelines around AI-generated content being devalued.[87]
2023 Oct 4 October 2023 Spam Update Enhanced coverage for more languages and additional types of spam.[88]
2023 Oct 5 October 2023 Core Update The rollout took 14 days. There was high volatility reported by many of the SEO ranking tools.[89][90]
2023 Nov 2 November 2023 Core Update The second core update in as many months is a rare occurrence.[91]

See also

References

  1. ↑ Brin, Sergey; Lawrence Page (April 1998). "The Anatomy of a Large-Scale Hypertextual Web Search Engine". Computer Networks and ISDN Systems 35 (1–7): 3. doi:10.1016/S0169-7552(98)00110-X. 
  2. ↑ Brin, Sergey; Rajeev Motwani; Terry Winograd (1998). "What can you do with a web in your pocket". Data Engineering Bulletin 21: 37–47. 
  3. ↑ The Stanford Integrated Digital Library Project, Award Abstract #9411306, September 1, 1994 through August 31, 1999 (Estimated), award amount $521,111,001
  4. ↑ Mervish, Jeffrey (January 2, 2009). "NSF Rethinks Its Digital Library". Science 323 (5910): 54–58. doi:10.1126/science.323.5910.54. PMID 19119211. 
  5. ↑ Fisher, Adam (July 10, 2018). "Brin, Page, and Mayer on the Accidental Birth of the Company that Changed Everything". https://www.vanityfair.com/news/2018/07/valley-of-genius-excerpt-google. Retrieved 23 August 2019. 
  6. ↑ McHugh, Josh (1 January 2003). "Google vs. Evil". Wired. https://www.wired.com/2003/01/google-10/. Retrieved 24 August 2019. 
  7. ↑ 7.00 7.01 7.02 7.03 7.04 7.05 7.06 7.07 7.08 7.09 7.10 7.11 "Our history in depth". September 15, 1997. https://www.google.com/about/company/history/. Retrieved February 1, 2014. 
  8. ↑ "Google Launches New Japanese, Chinese, and Korean Search Services: Company Continues Aggressive Global Expansion To Bring Award-Winning Search Engine To Internet Users Worldwide". September 12, 2000. http://googlepress.blogspot.com/2000/09/google-launches-new-japanese-chinese.html. Retrieved February 1, 2014. 
  9. ↑ 9.00 9.01 9.02 9.03 9.04 9.05 9.06 9.07 9.08 9.09 9.10 9.11 9.12 9.13 9.14 9.15 9.16 9.17 9.18 9.19 9.20 9.21 9.22 9.23 9.24 9.25 9.26 "Google Algorithm Change History". SEOmoz. http://moz.com/google-algorithm-change. Retrieved February 1, 2014. 
  10. ↑ "September, 2002 Google Update Discussion - Part 1". February 1, 2014. http://www.webmasterworld.com/forum3/5688.htm. 
  11. ↑ "Dancing the Google Dance: And a One Algo Change, Two Algo Change, Go!". Level343.com. March 14, 2011. http://level343.com/article_archive/2011/03/14/dancing-the-google-dance-one-algo-change-two-algo-change-go/. Retrieved February 1, 2014. 
  12. ↑ Boutin, Paul (October 5, 2002). "Google Degraded? Geeks Aghast". Wired. https://www.wired.com/culture/lifestyle/news/2002/10/55597. Retrieved February 1, 2014. 
  13. ↑ "Cassandra: Google update algo analysis thread. NO whining or cheering about how your site is doing in this one.". WebmasterWorld (forum). http://www.webmasterworld.com/forum3/11622.htm. Retrieved February 1, 2014. 
  14. ↑ "Understanding Dominic - Part 2". WebmasterWorld (forum). http://www.webmasterworld.com/forum3/13088-1-30.htm?highlight=dominic#msg160172. Retrieved February 1, 2014. 
  15. ↑ "Google Update Esmeralda". June 24, 2003. http://www.kuro5hin.org/story/2003/6/23/201523/090. Retrieved February 1, 2014. 
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  17. ↑ Levy, Steven (February 22, 2010). "Exclusive: How Google's Algorithm Rules the Web". Wired 17 (12). https://www.wired.com/magazine/2010/02/ff_google_algorithm/all/1. Retrieved February 1, 2014. 
  18. ↑ "The latest on update Austin (Google's January update)". Search Engine Journal. January 31, 2004. http://www.searchenginejournal.com/the-latest-on-update-austin-googles-january-update/237/. Retrieved February 1, 2014. 
  19. ↑ Wall, Aaron (January 2004). "Google Update Austin: Google Update Florida Again". Search Marketing Journal. http://www.search-marketing.info/newsletter/articles/austin-florida.htm. Retrieved February 1, 2014. 
  20. ↑ French, Garrett (February 17, 2004). "Google's Brandy Update Exposed". WebProNews. http://www.webpronews.com/googles-brandy-update-exposed-2004-02. Retrieved February 1, 2014. 
  21. ↑ "How To Beat Google's 'Brandy' Update". Sitepoint. March 8, 2004. http://www.sitepoint.com/brandy-google-update/. Retrieved February 1, 2014. 
  22. ↑ Pfeiffer, Ben (October 26, 2005). "A Review Of The Jagger 2 Update". Search Engine Roundtable. http://www.seroundtable.com/archives/002711.html. Retrieved February 1, 2014. 
  23. ↑ "Dealing With Consequences of Jagger Update: Your site dropped? Lost rankings? What to do now?". Webmaster World (forum). http://www.webmasterworld.com/forum30/32004.htm. Retrieved February 1, 2014. 
  24. ↑ Cite error: Invalid <ref> tag; no text was provided for refs named suggest-sel
  25. ↑ Cite error: Invalid <ref> tag; no text was provided for refs named suggest-official
  26. ↑ "Introducing Google Social Search: I finally found my friend's New York blog!". Official Google Blog. October 26, 2009. http://googleblog.blogspot.com/2009/10/introducing-google-social-search-i.html. Retrieved February 2, 2014. 
  27. ↑ Heymans, Maureen (January 27, 2010). "Search is getting more social". Official Google Blog. http://googleblog.blogspot.com/2010/01/search-is-getting-more-social.html. Retrieved February 2, 2014. 
  28. ↑ "Search: now faster than the speed of type". Official Google Blog. September 8, 2010. http://googleblog.blogspot.com/2010/09/search-now-faster-than-speed-of-type.html. Retrieved February 2, 2014. 
  29. ↑ Tsotsis, Alexia (September 8, 2010). "Google Instant: It Searches Before You Type". TechCrunch. https://techcrunch.com/2010/09/08/google-instant-its-search-before-you-type/. Retrieved February 2, 2014. 
  30. ↑ "Google Instant, behind the scenes". Official Google Blog. September 9, 2010. http://googleblog.blogspot.com/2010/09/google-instant-behind-scenes.html. Retrieved February 2, 2014. 
  31. ↑ "About Google Instant". https://www.google.com/insidesearch/features/instant/about.html. Retrieved February 2, 2014. 
  32. ↑ Fishkin, Rand (September 21, 2010). "Google Instant: Fewer Changes to SEO than the Average Algo Update". SEOmoz. http://moz.com/blog/google-instant-fewer-changes-to-seo-than-the-average-algo-update. Retrieved February 2, 2014. 
  33. ↑ "Overstock.com's Google Rankings - Too Good?". Google SEO News & Discussion Forum, Webmaster World. January 12, 2011. http://www.webmasterworld.com/google/4252178.htm. Retrieved February 2, 2014. 
  34. ↑ Efrati, Amir (February 24, 2011). "Google Penalizes Overstock for Search Tactics". Wall Street Journal. https://online.wsj.com/news/articles/SB10001424052748704520504576162753779521700?mg=reno64-wsj&url=http%3A%2F%2Fonline.wsj.com%2Farticle%2FSB10001424052748704520504576162753779521700.html. Retrieved February 2, 2014. 
  35. ↑ Kao, Evelyn (October 18, 2011). "Making search more secure". Official Google Blog. http://googleblog.blogspot.com/2011/10/making-search-more-secure.html. Retrieved February 2, 2014. 
  36. ↑ Wheeler, Aaron (October 21, 2011). "Google Hides Search Referral Data with New SSL Implementation - Emergency Whiteboard Friday". SEOmoz. http://moz.com/blog/google-hides-search-referral-data-with-new-ssl-implementation-emergency-whiteboard-friday. Retrieved February 2, 2014. 
  37. ↑ Nayak, Pandu (January 5, 2012). "30 search quality highlights (with codenames!): December". Inside Search: The official Google Search blog. http://insidesearch.blogspot.com/2012/01/30-search-quality-highlights-with.html. Retrieved February 2, 2014. 
  38. ↑ Singhal, Amit (May 16, 2012). "Introducing the Knowledge Graph: things, not strings". The Official Google Blog. http://googleblog.blogspot.com/2012/05/introducing-knowledge-graph-things-not.html. Retrieved February 2, 2014. 
  39. ↑ Sullivan, Danny (May 16, 2012). "Google Launches Knowledge Graph To Provide Answers, Not Just Links". Search Engine Land. http://searchengineland.com/google-launches-knowledge-graph-121585. Retrieved February 2, 2014. 
  40. ↑ Lardinois, Frederic (May 16, 2012). "Google Just Got A Whole Lot Smarter, Launches Its Knowledge Graph". TechCrunch. https://techcrunch.com/2012/05/16/google-just-got-a-whole-lot-smarter-launches-its-knowledge-graph/. Retrieved February 2, 2014. 
  41. ↑ McGee, Matt (May 26, 2012). "Google Releases Penguin Update 2". Search Engine Land. http://searchengineland.com/google-pushes-first-penguin-algorithm-update-122518. Retrieved February 2, 2014. 
  42. ↑ Brown, Aaron (December 4, 2012). "Get smarter answers from the Knowledge Graph from Português to 日本語 to русский". Inside Search: The official Google Search blog. http://insidesearch.blogspot.com/2012/12/get-smarter-answers-from-knowledge_4.html. Retrieved February 2, 2014. 
  43. ↑ Lardinois, Frederic (December 4, 2012). "Google's Knowledge Graph Expands To More Languages, Including Italian, French, Japanese And Russian". TechCrunch. https://techcrunch.com/2012/12/04/googles-knowledge-graph-expands-to-more-languages-including-italian-japanese-and-russian/. Retrieved February 2, 2014. 
  44. ↑ Nayak, Pandu (August 6, 2013). "In-depth articles in search results". Google Webmaster Central Blog. http://googlewebmastercentral.blogspot.com/2013/08/in-depth-articles-in-search-results.html. Retrieved February 2, 2014. 
  45. ↑ Meyers, Peter (August 13, 2013). "Inside In-depth Articles: Dissecting Google's Latest Feature". Moz. http://moz.com/blog/inside-indepth-articles. Retrieved February 2, 2014. 
  46. ↑ Freeman, Josh. "Payday Loans 2.0". Tide Interactive Group. http://www.tideinteractivegroup.com/google-algorithm-timeline.php. 
  47. ↑ Sullivan, Danny (July 3, 2014). "Head Of Google's Web Spam Team Matt Cutts Is Going On Leave. After 14 years with Google -- and 10 years heading up the web spam team -- veteran says time for a break". http://searchengineland.com/matt-cutts-on-leave-195785. Retrieved September 12, 2016. 
  48. ↑ "Will He Ever Return? Head Of Google's Web Spam Team Matt Cutts Extends Leave Into 2015. 14 year veteran of Google says web spam fighting has been running fine since he took leave in July.". Search Engine Land. October 31, 2014. http://searchengineland.com/will-matt-cutts-return-extends-leave-207159. Retrieved September 12, 2016. 
  49. ↑ Schwartz, Barry (July 24, 2014). "Google "Pigeon" Updates Local Search Algorithm With Stronger Ties To Web Search Signal". Search Engine Land. http://searchengineland.com/google-makes-significant-changes-local-search-ranking-algorithm-197778. Retrieved April 12, 2015. 
  50. ↑ Blumenthal, Mike (July 25, 2014). "Google Updates Local Algo with More Web Based Signals – Turmoil in SERPS". http://blumenthals.com/blog/2014/07/25/google-updates-local-algo-with-more-web-based-signals-turmoil-in-serps/. Retrieved April 12, 2015. 
  51. ↑ "HTTPS as a ranking signal". http://googlewebmastercentral.blogspot.com/2014/08/https-as-ranking-signal.html. Retrieved December 1, 2014. 
  52. ↑ Mueller, John (August 28, 2014). "Authorship removal". Google Plus. https://plus.google.com/u/0/+JohnMueller/posts/HZf3KDP1Dm8. Retrieved April 12, 2015. 
  53. ↑ "Google Authorship Ends". www.webtechshare.com. http://www.webtechshare.com/google-authorship-ends-author-rank-still-remains/. Retrieved August 31, 2014. 
  54. ↑ Enge, Eric (August 28, 2014). "It's Over: The Rise & Fall Of Google Authorship For Search Results. Google has completely dropped all authorship functionality from the search results and webmaster tools.". Search Engine Land. http://searchengineland.com/goodbye-google-authorship-201975. Retrieved April 12, 2015. 
  55. ↑ Sullivan, Danny. "After More Than Two Years, Google Finally Releasing New "Pirate Update" To Fight Piracy". www.searchengineland.com. http://searchengineland.com/google-pirate-update-206124. Retrieved December 1, 2014. 
  56. ↑ "Google Pirate Update Analysis and Loser List". SearchmMetrics. October 26, 2014. http://blog.searchmetrics.com/us/2014/10/26/google-pirate-update-analysis-and-loser-list/. Retrieved April 12, 2015. 
  57. ↑ Ernesto (October 23, 2014). "Google's New Search Downranking Hits Torrent Sites Hard". http://torrentfreak.com/googles-new-downranking-hits-pirate-sites-hard-141023/. Retrieved April 12, 2015. 
  58. ↑ Schwartz, Barry (December 10, 2014). "Google Says Penguin To Shift To "Continuous Updates". Google To Continuously "Optimize" The Penguin Algorithm As It Goes". Search Engine Land. http://searchengineland.com/google-says-penguin-shift-continuous-updates-210580. Retrieved April 12, 2015. 
  59. ↑ Schwartz, Barry (December 22, 2014). "Google Pigeon Update Rolls Out To UK, Canada & Australia. Google's new local ranking algorithm that launched in the US earlier this year has rolled out to the UK, Canada and Australia.". http://searchengineland.com/google-pigeon-update-rolls-uk-canada-australia-211576. Retrieved April 12, 2015. 
  60. ↑ Schwartz, Barry (February 5, 2015). "Significant Google Search Algorithm Update Yesterday". Search Engine Roundtable. https://www.seroundtable.com/google-algorithm-update-19820.html. Retrieved April 12, 2015. 
  61. ↑ Schwartz, Barry (January 19, 2015). "Google Sending Mobile Usability Warnings To Huge Number Of Webmasters. Google sending notifications to webmasters with sites that are not mobile friendly. Is this a sign of a new mobile algorithm coming soon?". Search Engine Land. http://searchengineland.com/google-sending-mobile-usability-warnings-huge-number-webmasters-213113. Retrieved April 12, 2015. 
  62. ↑ Makino, Takaki; Jung, Chaesang; Phan, Doantam (February 26, 2015). "Finding more mobile-friendly search results". Google Webmaster Central. http://googlewebmastercentral.blogspot.com/2015/02/finding-more-mobile-friendly-search.html. Retrieved April 12, 2015. 
  63. ↑ Schwartz, Barry (February 26, 2015). "New Google "Mobile Friendly" Algorithm To Reward Sites Beginning April 21. Google's mobile ranking algorithm will officially include mobile-friendly usability factors and app indexing. Making sure your site is mobile-friendly is now more important than ever.". Search Engine Land. http://searchengineland.com/google-search-algorithm-adds-mobile-friendly-factors-app-indexing-ranking-215573. Retrieved April 12, 2015. 
  64. ↑ O'Donnell, Jody; Scott, Laura (April 10, 2015). "Google's Mobile Algorithm Update is Coming April 21. Are you Prepared?". RKGBlog. http://www.rimmkaufman.com/blog/googles-mobile-algorithm-update-coming-april-21st-prepared/10042015/. Retrieved April 12, 2015. 
  65. ↑ Slegg, Jennifer (July 17, 2015). "Google Panda Update: Everything We Know About Panda 4.2". The SEM Post. http://www.thesempost.com/google-panda-update-everything-we-know-about-panda-4-2/. Retrieved September 12, 2016. 
  66. ↑ Schwartz, Barry (July 17, 2015). "Google Panda 4.2 Is Here; Slowly Rolling Out After Waiting Almost 10 Months. Google says a Panda refresh began this weekend but will take months to fully roll out.". Search Engine Land. http://searchengineland.com/google-panda-4-2-is-here-slowly-rolling-out-after-waiting-almost-10-months-225850. Retrieved September 12, 2016. 
  67. ↑ "Did Google Reverse The Panda 4.2 Update?". September 1, 2015. https://www.seroundtable.com/google-panda-42-reversed-20837.html. Retrieved September 12, 2016. 
  68. ↑ Clark, Jack (October 26, 2015). "Google Turning Its Lucrative Web Search Over to AI Machines". Bloomberg News. https://www.bloomberg.com/news/articles/2015-10-26/google-turning-its-lucrative-web-search-over-to-ai-machines. Retrieved September 12, 2016. 
  69. ↑ Rampton, John (June 4, 2016). "Artificial intelligence is changing SEO faster than you think". https://techcrunch.com/2016/06/04/artificial-intelligence-is-changing-seo-faster-than-you-think/. Retrieved September 12, 2016. 
  70. ↑ Hardy, Quentin (February 3, 2016). "Amit Singhal, an Influential Engineer at Google, Will Retire". https://www.nytimes.com/2016/02/04/technology/amit-singhal-an-influential-engineer-at-google-will-retire.html. Retrieved September 12, 2016. 
  71. ↑ Schwartz, Barry (February 3, 2016). "Amit Singhal, The Head Of Google Search, To Leave The Company For Philanthropic Purposes. After 15 years, Google's head of search, Amit Singhal, is leaving the company.". Search Engine Land. http://searchengineland.com/amit-singhal-the-head-of-google-search-to-leave-the-company-for-philanthropic-purposes-241707. Retrieved September 12, 2016. 
  72. ↑ Kim, Larry (February 24, 2016). "Google's New SERP Layout: The Biggest Winners & Losers. What has been the impact of Google's new desktop ad layout thus far? Columnist Larry Kim uses data to show who has benefited and who has suffered from the change.". Search Engine Land. http://searchengineland.com/googles-new-serp-layout-4-biggest-winners-losers-based-data-243292. Retrieved September 12, 2016. 
  73. ↑ Meyers, Peter J. (February 19, 2016). "Four Ads on Top: The Wait Is Over". https://moz.com/blog/four-ads-on-top-the-wait-is-over. Retrieved September 12, 2016. 
  74. ↑ Kim, Larry (February 23, 2016). "Google Kills Off Side Ads: What You Need to Know". WordStream. http://www.wordstream.com/blog/ws/2016/02/22/google-kills-off-right-side-ads. Retrieved September 12, 2016. 
  75. ↑ Sagin, Erin (March 10, 2016). "3 Weeks After Google Killed Side Ads, Here Are 5 More Takeaways". WordStream. http://www.wordstream.com/blog/ws/2016/03/10/takeaways-from-serp-change. Retrieved September 13, 2016. 
  76. ↑ "Continuing to make the web more mobile friendly". Google Webmaster Central Blog. March 16, 2016. https://webmasters.googleblog.com/2016/03/continuing-to-make-web-more-mobile.html. Retrieved September 12, 2016. 
  77. ↑ Schwartz, Barry (May 12, 2016). "Google's mobile-friendly algorithm boost has rolled out. The new Google mobile-friendly algorithm is supposed to give an additional ranking boost for mobile-friendly websites in the mobile search results.". Search Engine Land. http://searchengineland.com/googles-mobile-friendly-algorithm-boost-rolled-249357. Retrieved September 12, 2016. 
  78. ↑ "May 2022 core update releasing for Google Search". May 25, 2022. https://developers.google.com/search/blog/2022/05/may-2022-core-update. 
  79. ↑ Larkin, Kayle (July 11, 2022). "Google's May 2022 Core Update: What's the Impact So Far?". searchenginejournal.com. https://www.searchenginejournal.com/google-may-core-update-impact/456886/. 
  80. ↑ Schwartz, Barry (2022-09-09). "Google helpful content update is now done rolling out" (in en). https://searchengineland.com/google-helpful-content-update-is-now-done-rolling-out-387832. 
  81. ↑ "Google Search's Core Updates | Google Search Central | What's new" (in en). https://developers.google.com/search/updates/core-updates. 
  82. ↑ "Google Search Status Dashboard". https://status.search.google.com/incidents/Y2Cg5k2xLJvfNqR58kEt. 
  83. ↑ "September 2022 Core Update Impact" (in en). https://www.semrush.com/blog/september-2022-core-update-impact/. 
  84. ↑ "Google Search Status Dashboard". https://status.search.google.com/incidents/XMdX5PmbMvKW4fv3CRvn. 
  85. ↑ "Google Search Status Dashboard". https://status.search.google.com/incidents/nBtYtBeex4GYBbdDS2LX. 
  86. ↑ Ray, Lily (2023-09-12). "Google August 2023 Core Update: Winners, Losers & Analysis" (in en-US). https://www.amsive.com/insights/seo/google-august-2023-core-update-winners-losers-analysis/. 
  87. ↑ Montti, Roger (2023-09-14). "Google September 2023 Helpful Content Update - Changes To The Algorithm" (in en). https://www.searchenginejournal.com/google-september-2023-helpful-content-update-changes-to-the-algorithm/496454/. 
  88. ↑ "Google Search Status Dashboard". https://status.search.google.com/incidents/NzcEhGMDhbQEdXCS35xL. 
  89. ↑ Schwartz, Barry (2023-10-19). "Google October 2023 Core Update rollout is now complete" (in en). https://searchengineland.com/google-october-2023-core-update-rollout-is-now-complete-433191. 
  90. ↑ "Google Algorithm Updates 2023". https://www.pentame.com/blog/google-algorithm-updates-2023-the-year-in-review/. 
  91. ↑ "Google Search Status Dashboard". https://status.search.google.com/incidents/WtY1CQgfqrr2cjxKbyUk. 



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