WordPress generates category links with a rel="category" attribute. When I run my site through w3c.org’s validator, it tells me that this is invalid, and that I can register link types on the Microformats wiki (http://microformats.org/wiki/existing-rel-values#HTML5_link_type_extensions). However,
Is this a problem with the validator, or am I doing something incorrectly? Thanks in advance.
The
relvalue “category” is not invalid. Instead, the validator is not up to date.categoryis registered officially in the microformats.org wiki page.So it’s no problem to use this value. The validator will probably catch up in the future.