attributes - Identifying meta tag standards across commonly used meta vocabularies -


while attempting identify various standards concerning meta-tags (and data) have had little (to no) luck in doing so. fundamentally, aim identify area, organization, or site throughout internet offers comprehensive listing of of current (i.e., non-deprecated) meta-attribute types , keywords (i.e., name, http-equiv, itemprop, etc…) in conjunction individualized data-types, format, , delimiter tokens, whether tag (in question) should self-closed or not. example:

tag:      <meta name="keywords" content="key0,key1,key2"> ---------------------------------------------------------------------------- breakdown:       <meta           name=       <= attribute-type           ”keywords”  <= “keyword”           content=“   <= attribute-value          key0        <= string data-type          ,           <= comma delimiter          key1        <= string data-type          ,           <= comma delimiter          ""          <= etc...       />              <= recommended self-closing bracket ----------------------------------------------------------------------------

or

tag:      <meta http-equiv="refresh" content="30;url='http://domain.com/">  ----------------------------------------------------------------------------  breakdown:       <meta           http-equiv= <= attribute-type           ”refresh”   <= “keyword”           content=“   <= attribute-value          30          <= integer (or number) data-type          ;           <= semi-colon delimiter          url=        <= attribute (optional)         'http://..' <= url format expected       />              <= recommended self-closing bracket ----------------------------------------------------------------------------

naturally, i've scrubbed web days little success. albeit, schema.org, metatags.org, , whatwg communities living html standard concerning microdata encoding (https://html.spec.whatwg.org/multipage/#toc-microdata) have been best sources towards assisting me in identifying recommend standards , usage, there myriad of other resources offer conflicting data, outdated information, , not include other common meta vocabulary standards used throughout web, such dublincore, opengraph, etc… if assist me in pointing me in right direction, surely appreciate it, , if not, appreciate @ least appreciate taking time read request.

  • thanks , cheers.

if care meta elements, these 2 registries might of help:

coupled html standard should provide pretty exhaustive view of element.


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