Open Graph
001 <meta property="og:type" content="website/article" />
002 <!-- if og:type == article -->
003 <meta property="og:article:published_time" content="[YYYY]-[MM]-[DD]T[hh]:[mm][+/-][hh]:[mm]" />
004 <meta property="og:article:modified_time" content="[YYYY]-[MM]-[DD]T[hh]:[mm][+/-][hh]:[mm]" />
005 <meta property="og:article:section" content="my_section" />
006 <meta property="og:article:tag" content="my_tag" />
007
008 <meta property="og:image" content="url" />
009 <!-- values should match absolute size in pixels, 1200x630 is optimal -->
010 <meta property="og:image:width" content="1200" />
011 <meta property="og:image:height" content="630" />
012 <meta property="og:image:alt" content="screenreader description" />
013
014 <meta property="og:description" content="desc..." />
015 <meta property="og:title" content="title" />
016
017 <meta property="og:locale" content="en_US" />
018 <meta property="og:profile" content="facebook url" />
Twitter Cards
001 <!-- also uses og equivalent, therefore these are not strictly required -->
002 <meta name="twitter:title" content="title" />
003 <meta name="twitter:description" content="desc..." />
004 <meta name="twitter:image" content="url" />
005 <meta name="twitter:creator" content="twitter username" />
006 <!-- 'summary' for square images, 'summary_large_image' for rectangular images -->
007 <meta name="twitter:card" content="summary/summary_large_image/app/player" />
008
009 <meta name="twitter:site" content="twitter handle for the website's twitter account" />