A program that traverses the hypertext, following each hyperlink and gathering all the retrieved documents is known as a Web spider or crawler.Īn inline link displays remote content without the need for embedding the content. These hyperlinks may also be followed automatically by programs. Not only persons browsing the document may follow hyperlinks. Another possibility is transclusion, for which the link target is a document fragment that replaces the link anchor within the source document. The effect of following a hyperlink may vary with the hypertext system and may sometimes depend on the link itself for instance, on the World Wide Web most hyperlinks cause the target document to replace the document being displayed, but some are marked to cause the target document to open in a new window (or, perhaps, in a new tab). More complex arrangements exist, such as many-to-many links.
In some hypertext, hyperlinks can be bidirectional: they can be followed in two directions, so both ends act as anchors and as targets. Hyperlinks are often used to implement reference mechanisms such as tables of contents, footnotes, bibliographies, indexes, letters, and glossaries. For example, in an online reference work such as Wikipedia or Google, many words and terms in the text are hyperlinked to definitions of those terms. The document containing a hyperlink is known as its source document.
A user following hyperlinks is said to navigate or browse the hypertext. A software system that is used for viewing and creating hypertext is a hypertext system, and to create a hyperlink is to hyperlink (or simply to link). The text that is linked from is known as anchor text. A hyperlink points to a whole document or to a specific element within a document. In computing, a hyperlink, or simply a link, is a digital reference to data that the user can follow or be guided by clicking or tapping. Several documents being connected by hyperlinks
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