: Before examining the means available to website publishers to block the collection of their data, it is first necessary to define the practices implemented by search engines and companies developing generative artificial intelligence models. Several concepts are used in this context: crawling , scraping , and TDM (Text and Data Mining). Although these terms refer to similar practices, their exact scope varies depending on usage and interpretation. It is therefore essential to clarify the meaning of each of these terms in order to establish a precise framework for the discussion.