This page contains tables of known HTML rel values from specifications, formats, proposals, brainstorms, and non-trivial POSH usage in the wild. In addition, dropped and rejected values are listed at the end for comprehensiveness. usage: see how is 'rel' used. Regarding rev, see: should 'rev' even be used. This page is also the official rel registry (WHATWG HTML (original link), W3C HTML5). Add ne