--- language: en title: "Research" description: "Critical reviews of studies published by third parties: methodology, findings, limitations, and implications for marketing." canonical: "https://tropk.ai/en/resources/research" last_modified: "2026-10-12T16:03:32.257Z" --- # Research - [Where do sources cited by AI come from? How they differ by sector and engine](): An analysis of Profound’s study of 11.84 billion citations. See why company, editorial, and community sources need to be evaluated in context. - [From Retrieved Page to Cited Source: How to Read AirOps’ Commercial Study](): AirOps analyzes 217,508 pages retrieved for commercial queries. Learn how to interpret structure, tables, and statistics without turning associations into formulas. - [AI mentions and website visits: what the Profound study allows us to conclude](): More than two million conversations help investigate visits after brand mentions. Understand the comparison, its causal limits, and what the absence of a referral does not prove. - [Asking in Portuguese doesn’t limit searches to that language: a Peec AI analysis](): Peec AI investigated the use of English searches after questions in other languages. Learn about the denominators, limitations, and how to test relevance for Brazil. - [How Long Does an AI Citation Last? A Look at the Profound Study](): The study tracks the declining share of pages cited by seven engines. Learn about the 11 days, the methodology, and how to plan reviews without chasing fluctuations. --- [All pages in Markdown]()