Rel attribute

In HTML the rel attribute of a link between two pages defines the relationship of the target page to the current, or linking, page.

rel attributes are used in some microformats and in XHTML Friends Network (XFN).

Examples

 * rel="home" - target page is the home page, for the current page's site
 * rel="me" - the target page is about the same person as the current page.

rev attribute
In HTML 4, rev attribute of a link is also defined, which means the reversed relationship. The attribute is removed in HTML 5.