I just changed my Wordpress theme and I can't find <meta property=article:tag content=  /> in my posts and pages metadata. Are they really necessary? If they are how do I add them back?
Is article:tag meta tag necessary?
seo;wordpress;meta tags
<meta property=article:tag content=Article Tag /> is one of the Facebook Open Graph tags. Having social media metadata in the website is one of the best practice as it will tell how our webpage's Title, URL, Image, Description, site_name etc should display while sharing.But I don't think <meta property=article:tag content=Article Tag /> is necessary as it is not in the Standard Open Graph tags <!-- Open Graph data --><meta property=og:title content=Title /><meta property=og:type content=article /><meta property=og:url content=http://www.example.com/ /><meta property=og:image content=http://example.com/image.jpg /><meta property=og:description content=Description /><meta property=og:site_name content=Site Name /><meta property=fb:admins content=Facebook numeric ID />Still if you want to add that tag you can add like<!-- Open Graph data --><meta property=og:title content=Title /><meta property=og:type content=article /><meta property=og:url content=http://www.example.com/ /><meta property=og:image content=http://example.com/image.jpg /><meta property=og:description content=Description /><meta property=og:site_name content=Site Name /><meta property=article:published_time content=2015-11-11T19:08:47+01:00 /><meta property=article:modified_time content=2015-11-11T19:08:47+01:00 /><meta property=article:section content=Article Section /><meta property=article:tag content=Article Tag /><meta property=fb:admins content=Facebook numberic ID /> 