Web scraping is a technique used to extract information from websites. It involves using software or scripts to automatically gather data from web pages, which can then be stored and analyzed. This process is useful for collecting large amounts of information quickly, such as product prices, reviews, or news articles.
The data obtained through web scraping can be used for various purposes, including market research, competitive analysis, and academic studies. However, it's important to note that not all websites allow scraping, and doing so without permission may violate their terms of service. Always check a site's policies before scraping its content.