meta charset='utf-8'>

title>···title>
meta property='og:title'  content='···'>
meta name='twitter:title' content='···'>

link rel='canonical'       href='http://···'>
meta property='og:url'  content='http://···'>
meta name='twitter:url' content='http://···'>

meta name='description'         content='···'>
meta property='og:description'  content='···'>
meta name='twitter:description' content='···'>

meta property="og:image"  content="http://···">
meta name="twitter:image" content="http://···">

meta http-equiv='X-UA-Compatible' content='IE=edge,chrome=1'>

meta name='viewport' content='width=device-width'>
meta name='viewport' content='width=1024'>

meta property='og:site_name' content='···'>
meta property='og:type' content='website'>

meta property='fb:app_id' content='···'>
meta property='fb:admins' content='UID1,UID2'>

meta property='og:audio' content='http://···/theme.mp3'>
meta property='og:video' content='http://···/trailer.swf'>

• article:published_time
• article:modified_time
• article:expiration_time
• article:author
• article:section
• article:tag

meta