A search engine is an online tool that automatically crawls and indexes content available on the internet, such as web pages, videos, PDFs, and images. This process is carried out by a specialized program called a “web crawler,” which scans the web for new information to index. Once collected, this information is organized into a database called an “index.” When a user performs a search by entering keywords, the search engine analyzes the indexed content and ranks pages according to their relevance. Google, the most popular search engine, dominates the market in France, accounting for over 90% of online searches. A high ranking in search results is crucial for businesses, as search engines are an essential step for internet users seeking information. Strategies to improve search engine visibility, such as search engine optimization (SEO) and advertising campaigns, play a vital role in online marketing. Search engines are currently evolving towards a more artificial intelligence-driven approach.