A clickable web address embedded into a web document is called a link. More technically, it is a hyperlink: a reference in a document that lets a reader jump to another location, page, file, or resource by clicking or activating it.
On the Web, links are usually created with HTML’s anchor element, written as “<a>”. The destination is specified with the “href” attribute, while the visible text, image, or button provides the clickable part. A link might open another webpage, move to a section on the same page, download a file, or start an email action.
“Hyperlink” is the formal technical term, but “link” is the standard everyday short form and is fully correct here. A URL is different: it identifies the address of a resource, while a link is the clickable reference that may contain that URL. Links are fundamental to how the World Wide Web connects documents.