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URL (Uniform Resource Locator) is a reference to a web resource that specifies its location on a computer network and a mechanism for retrieving it. It is a fundamental component of the World Wide Web, enabling users to access and interact with web pages, images, videos, and other digital content.

A typical URL consists of several parts, including the scheme (e.g., http, https), the domain name (e.g., www.example.com), and the path to the specific resource (e.g., /index.html). The scheme indicates the protocol used to access the resource, while the domain name identifies the server hosting the resource. The path specifies the location of the resource on the server.

URLs can also include query parameters, which are used to pass additional information to the server. These parameters are appended to the URL after a question mark and are typically in the form of key-value pairs (e.g., ?search=example).

URLs are essential for navigating the web, as they provide a standardized way to locate and access resources. They are used in web browsers, search engines, and various web applications to facilitate the retrieval and display of content. Understanding URLs is crucial for web developers, as they are responsible for creating and managing the URLs for their websites and applications.