Google Search

The world's dominant information retrieval system (90% market share): delivering relevant answers from a multi-petabyte index in milliseconds.

Google Search is the fully-automated engine that processes billions of daily queries, connecting users to the web's most relevant information. Its three-stage process—Crawling (via Googlebot), Indexing, and Ranking—is powered by sophisticated AI models: specifically BERT and RankBrain, which interpret user intent. The core technology leverages hundreds of ranking signals to ensure quality and relevance, sifting through petabytes of data to provide a near-instant answer (often within milliseconds) for over 90% of the global search market. It is the definitive gateway to the internet.

https://www.google.com/search