link relation types

Link relation types is how IANA refers to existing-rel-values or the microformats rel-registry, likely due to the IANA registry table of the same name: http://www.iana.org/assignments/link-relations/link-relations.xml#link-relations-1.

Note that the IANA registry is out-of-date and that HTML5 uses existing-rel-values as a rel-registry as specified in both the W3C HTML5 draft (see also editor's draft) and the WHATWG HTML draft.

Link types is how HTML4 listed the various values for the HTML4 <a> and <link> element rel attribute: http://www.w3.org/TR/html4/types.html#h-6.12. These have been incorporated into the formats table at the top of existing-rel-values.

see also

• existing-rel-values
• rel-registry
• HTML5