Google treats AI-overview spam as violation

Google has started writing its AI search rules more explicitly. On May 15, the company updated its Search spam policies to say they cover attempts to manipulate “generative AI responses in Google Search,” not just efforts to rank highly in traditional results. The change folds AI Overviews and AI Mode into the same policy framework Google already uses for spam in web search. Days earlier, Brazil’s competition authority CADE said it would open a deeper administrative proceeding into Google’s use of journalistic content, including how generative AI features may affect publisher traffic and monetization. ### What exactly did Google change? Google’s Search Essentials documentation now defines spam as techniques used to deceive users or manipulate Search systems into featuring content prominently, including attempts to manipulate generative AI responses in Google Search. Before the change, the same introductory language referred only to attempts to manipulate Search systems into ranking content highly, according to a before-and-after description published by Search Engine Land. (developers.google.com) Google logged the change in its Search Central documentation updates for May 2026 as a clarification that spam policies apply to generative AI responses in Google Search. The company’s spam policy page says violations can lead to lower rankings or removal from results, through automated systems or manual action. ### Does that mean AI Overviews are now treated like ordinary search results? (developers.google.com) Google’s own documentation says the policies apply to “all web search results,” including Google’s own properties, and its newer AI guidance says AI Overviews and AI Mode are rooted in the company’s core Search ranking and quality systems. In that guide, Google says those features use retrieval-augmented generation and query fan-out to pull from its Search index and generate responses with links back to source pages. (developers.google.com) That matters because Google is telling publishers and search marketers that visibility in AI answers is still governed by the same underlying quality and anti-spam rules as the rest of Search. Google’s AI optimization guide says “AEO” and “GEO” are, from Google Search’s perspective, still SEO. ### What is Brazil investigating? Brazil’s Administrative Council for Economic Defense, known as CADE, said on April 23 that it unanimously approved a proposal by Interim President Diogo Thomson to launch an administrative proceeding to further investigate Google’s use of journalistic content. (developers.google.com) CADE said the review was warranted because technological advances since a 2019 inquiry had changed the conduct under examination. (developers.google.com) Diogo Thomson said in CADE’s published summary that the conduct had evolved beyond the automated collection and partial display of journalistic content in search results. He said generative AI features can synthesize information directly in the search interface and thereby alter “the dynamics of access, visibility, and monetisation of journalistic content in the digital environment.” (gov.br) ### Why do publishers care about AI Overviews in this case? CADE’s notice says the authority is examining competitive conditions in search and in the related news market, particularly Google’s use of publisher content. The regulator said the relationship could amount to structural dependence because a significant share of news outlets’ traffic relies on Google search mechanisms to reach audiences. (gov.br) The Brazilian case puts a competition frame around a dispute publishers have raised more broadly: whether answer surfaces summarize their work while reducing the need for users to click through. CADE’s published account does not resolve that question, but it says the proceeding will investigate whether Google’s conduct could amount to abuse of dominant position. (gov.br) ### How do the two developments fit together? May 2026 brought both a tighter internal rule from Google and an external investigation from Brazil. Google’s policy change addresses how websites and marketers try to influence AI answers inside Search, while CADE’s proceeding examines how Google uses others’ content to produce those answers and related search displays. (gov.br) Google’s own AI search guidance also shows why the scrutiny is converging on answer surfaces. The company says AI Overviews and AI Mode are generated from retrieved web content in its index, with links meant to support the response. That setup makes content access, attribution, ranking, and anti-spam enforcement part of the same product stack. ### What happens next? (developers.google.com) CADE said the case will return for further investigation inside its administrative process, with Google’s use of journalistic content and newer AI-based features now part of the factual record under review. Google, for its part, has already published the revised spam language and the May 2026 documentation update, which site owners can track through Search Central. (gov.br) (developers.google.com)