URL

A URL (Uniform Resource Locator) is a standardized address used to locate and access resources on the internet, such as web pages, files, or services. It specifies the protocol, domain, path, and optional parameters to uniquely identify a resource, enabling browsers and applications to retrieve it over networks like the web.

Also known as: Uniform Resource Locator, Web Address, Link, URI, Endpoint

Why learn URL?

Developers should learn URLs because they are fundamental for web development, API design, and network communication, as they define how clients access servers and resources. Use cases include building web applications, configuring routing in frameworks, handling HTTP requests, and implementing security measures like URL validation and sanitization.

Learning Resources

• docs: MDN Web Docs: What is a URL?
• tutorial: W3Schools: URL Encoding
• docs: RFC 3986: Uniform Resource Identifier (URI)
• course: Khan Academy: Internet 101