URL, short for Uniform Resource Locator, is the address or the unique identifier that specifies the location of a resource on the internet. It is used to access websites, web pages, files, or any other online content. A URL consists of several components, including the protocol (e.g., https://), the domain name (e.g., www.example.com), and the path (e.g., /blog/article). URLs can be typed directly into the browser's address bar or accessed through hyperlinks.