Uniform Resource Locator (URL), colloquially termed a web address,[1] is a reference to a web resource that specifies its location on a computer network and a mechanism for retrieving it. A URL is a specific type of Uniform Resource Identifier (URI),[2][3] although many people use the two terms interchangeably.[4][a] URLs occur most commonly to reference web pages (http), but are also used for file transfer (ftp), email (mailto), database access (JDBC), and many other applications.

Most web browsers display the URL of a web page above the page in an address bar. A typical URL could have the form http://www.example.com/index.html, which indicates a protocol (http), a hostname (www.example.com), and a file name (index.html).

Mojave Migration Assistant System Requirements

General Requirements

  • OS X 10.8 or later

  • 2GB of memory

  • 12.5GB of available storage (OS X El Capitan 10.11.5 or later)*

  • Some features require an Apple ID; terms apply.

  • Some features require a compatible Internet service provider; fees may apply.

Have an older version of OS X? Learn how to upgrade

Upgrading from OS X Snow Leopard or Lion

If you’re running Snow Leopard (10.6.8) or Lion (10.7) and your Mac supports macOS Mojave, you will need to upgrade to El Capitan (10.11) first. Click here for instructions.